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Two new genera, Skelleyus Opitz and Divulgoatus Opitz (Coleoptera: Cleridae: Enopliinae), show unusual antennal development. Funicular antennomeres become shorter as they approach an extensive capitulum. This study involves three taxa, Skelleyus leavengoodi Opitz, new species, Divulgoatus kelleri Opitz, new species, and Divulgoatus discrepans (Gorham).
ZooBank registration. urn:lsid:zoobank.org:pub:E059A916-DDE2-4193-A090-8CDD46EDC859
Bicellonycha amoena (Gorham, 1880) (Coleoptera: Lampyridae) usually flies one meter above ground level over grass, water, or open areas, where males produce a simple single flash every 2–4 seconds, having their most active flashing period from mid to late dusk and early night. In addition, nothing else is known about the behavior of this species. We conducted field observations at the “Mayan Golf Club” in Guatemala Department, and Santiago Sacatepéquez, Sacatepéquez Department, Guatemala; and analyzed B. amoena flashes with a spectroscope. Fireflies displayed a lime-green bioluminescence color. The male flashing activity began ~30 minutes after sunset and lasted approximately 70 minutes. For B. amoena, the spectral composition of the flash is intermediate between those known from twilight-active fireflies and nocturnalactive fireflies.
ZooBank registration. urn:lsid:zoobank.org:pub:512FB867-8E8F-47E6-AD02-B3B13C97C25D
The New World genus Mycotretus Lacordaire, 1842 (Erotylidae: Erotylinae: Tritomini) is the second most speciose genus within Erotylidae and is found mainly in the Neotropical region. Currently, the genus includes 231 available names, of which 204 are valid. Accurate species identification is hampered by the lack of taxonomic revisions, identification keys or an illustrated catalogue for Mycotretus. To correct this problem and to allow further studies, the objective in this paper is to provide an illustrated catalogue for Mycotretus and propose some taxonomic acts promoting taxonomic stability within the genus. The present catalogue is the result of more than six years of morphological studies and careful comparisons of specimens, including research in several scientific collections throughout America and Europe, searching for identified specimens and types of available names of Mycotretus. The historical literature was examined and all available names listed in the catalogue of Blackwelder (1945) are included here, along with updated information from the catalogue of Alvarenga (1994). Our main results are: (i) examination of types of 216 former available names within Mycotretus, including 74 types previously not examined or not located by Alvarenga (1994); (ii) lectotype designations for 143 available names of Mycotretus; (iii) proposal of 41 new synonyms and three new combinations; (iv) the number of valid species of Mycotretus is reduced from 204 to 174; (v) plates providing images (most of them types) of specimens representing most available names within Mycotretus. The present work is the first major step towards a nomenclatural stability that will allow further revisionary and phylogenetic studies on Mycotretus.
Ten new species of Thinophilus Wahlberg, 1844 from the Afrotropical region are described and illustrated: T. saegeri sp. nov. from the Democratic Republic of the Congo, T. medvedevi sp. nov., T. longicercus sp. nov., T. cataractae sp. nov. and T. manambato sp. nov. from Madagascar, T. gallagheri sp. nov. and T. deemingi sp. nov. from Oman, T. sigwalti sp. nov. from Senegal, T. subpalpatus sp. nov. from South Africa, and T. fluvialis sp. nov. from Tanzania. Type material for 13 previously described Afrotropical species is examined. The genus Paralleloneurum Becker, 1902 is newly synonymized with Thinophilus (syn. nov.). As a result, the following new combinations are here established: Thinophilus cilifemoratus (Becker, 1902) comb. nov. and T. pygmaeus (De Meijere, 1916), comb. nov. The following new synonyms are proposed: Thinophilus annulitarsis Parent, 1936 with T. calopus Loew 1852; T. bipunctatus Curran, 1926 and T. maculatus Parent, 1929 with T. indigenus Becker, 1902. New records are given for some known species. Thinophilus argyropalpis Becker, 1910 and T. spinitarsis Becker, 1907 are reported from the Afrotropical Region for the first time. The number of species of the genus, known from continental Africa, Oman, Yemen and Madagascar, has increased to 30. An identification key to 29 Afrotropical species is compiled. Thinophilus versutus Haliday, 1851 and T. cilifemoratus (Becker, 1902), type species of the former genera Schoenophilus Mik, 1878 and Paralleloneurum Becker, 1902, are subsequently also included into the key, because the two species inhabit northern Africa.
The New World species of the genus Ceratoculicoides Wirth & Ratanaworabhan are described, illustrated and keyed in both sexes. Ceratoculicoides borkenti sp. nov., C. confusus sp. nov., C. grogani sp. nov., C. pacificus sp. nov. and C. propinquus sp. nov. are described, with C. confusus being the first record of the genus from South America (Colombia). Ceratoculicoides blantoni is a junior synonym of C. virginianus and the identity of C. longipennis remains unclear as the male morphospecies associated in taxonomic literature with the female type series is not conspecific. A morphological phylogeny of all extant species in the genus is presented and characters discussed. The moravicus species group is recognized for a clade of species with the lateral margins of the aedeagus straight or concave.
The Cyrtodactylus irregularis group, originally considered to consist of only one taxon, has been split into 26 species. We herein present the distribution of all species within the group in Cambodia, Laos and Vietnam and describe two new species based on integrative analyses. Cyrtodactylus chumuensis sp. nov. is discovered from Dak Lak Province and distinguished from the remaining taxa by more than 11.86% genetic divergence and by the following distinct morphological characters: size medium (SVL 67.5 mm); enlarged femoral scales on each thigh 4–5, femoral pores 0–2 in males; precloacal pores 6–7 in males; ventral scale rows 43–45; lamellae under toe IV 17–21. Cyrtodactylus arndti sp. nov. is described from Binh Dinh Province and genetically differentiated from its congeners by a minimum of 11.42% and by the following characters: adult size medium (SVL 73.4–80.8 mm); enlarged femoral scales on each thigh 5–11; femoral pores 0–2 in males; 6 precloacal pores in males, females with 6 pitted precloacal pores; ventral scale rows 26–38; lamellae under toe IV 17–22; subcaudal scales transversely enlarged. Additionally, we highlight the potential cryptic diversity with the taxon currently regarded as C. pseudoquadrivirgatus and understudied areas in Vietnam where new species will likely be discovered.
Three new species of the bamboo-feeding genus Bambusiphaga Huang & Ding, 1979, B. parvula sp. nov., B. angulosa sp. nov., and B. nigrigena sp. nov., are described and illustrated from China. A key to species of the genus is provided. Habitus photos for adults and illustrations of male genitalia are also given.
The American species of Cosmetidae, in spite of being clearly distinguished in the older literature, were mixed-up by Roewer. This, aggravated by groundless synonymies done by Goodnight & Goodnight, prevented all subsequent authors from properly recognizing and adequately naming those species. Herein, we define and characterize the three most widespread species of Cosmetidae in the USA, explaining the misleading synonymies and misidentifications in the taxonomic literature. A recent phylogenetic analysis revalidated Libitioides Roewer, 1912 from the synonymy of Vonones Simon, 1879 to include three American species: Gonyleptes ornatum Say, 1821 (from southeastern USA), Cynorta sayi Simon, 1879 (from central-southern USA) and Cosmetus albolineatus Sørensen, 1884 (from eastern USA). Expanding on that, we herein aggregate another two species to Libitioides: Vonones modestus Banks, 1909 (from Cuba, herein revalidated from the synonymy of Libitioides ornata Roewer, 1912) and Libitioides scabrissima Roewer, 1912 (from Mexico, restored from the current combination with Vonones). The following subjective synonymies are proposed: (1) Platycynorta Mello-Leitão, 1933 and Denticynorta Roewer, 1947 = Libitioides; (2) Metacynorta denticus Walker, 1928 = Cosmetus albolineatus; (3) Platycynorta secunda Roewer, 1947 = Vonones modestus; (4) Libitioides ornata Roewer, 1912 and Cynorta (Cynorta) depressa Sørensen, 1932 = Cynorta sayi. Outside Libitioides, Cynorta bimaculata Banks, 1893, currently combined under Calicynorta Goodnight & Goodnight, 1943, and originally reported from California (due to a misinterpretation of label) has its type locality corrected as to be in Costa Rica instead and is transferred to Holovonones Roewer, 1912. Accordingly, Calicynorta is herein considered a junior subjective synonym of Holovonones Roewer, 1912. Platycynorta clavifemur Roewer, 1957 from Peru is newly combined under the genus Ambatoiella Mello-Leitão, 1943, otherwise known from Ecuador. The present analysis of the distributional data suggests that the occurrence of Cosmetidae is determined not directly by temperature, but by the absence of a dry season and the presence of a hot summer.
A new species of Laubierpholoe Pettibone, 1992 (Annelida, Sigalionidae), Laubierpholoe massiliana Zhadan sp. nov., was found in two submarine caves near Marseille (France). This is the first record of the genus in the Mediterranean Sea. The new species differs from congeners by inhabiting soft sediments instead of having an interstitial lifestyle and by several morphological characters: the ventral tentacular cirri slightly shorter or of similar length to the dorsal tentacular cirri, the presence of bidentate neurochaetae, the body length, and the number of segments. Molecular phylogenetic analysis using 18S rRNA and 28S rRNA sequences confirmed that the new species belongs to the genus Laubierpholoe, as well as the monophyly of the genus. The ecology of the new species and its adaptation to the cave-dwelling lifestyle are discussed. An identification key for all known species of Laubierpholoe is provided.
Taxonomic history and review of the Förster genera of Platygastridae (Hymenoptera: Platygastroidea)
(2023)
Platygastridae is a ʻdark taxonʼ, with many genera and species in dire need of professional attention. The taxonomic impediment is especially severe in the Palearctic Platygastrinae due to the abundance of names with vague concepts. Historical descriptions and their associated type material must be examined and clarified before further revisionary work can occur. Arnold Förster described 18 genera of Platygastridae, most of which represent distinct and recognizable lineages. The present study reviews their taxonomic history, providing diagnostic remarks, English translations, and illustrations of important specimens from the Förster collection in the Natural History Museum Vienna. The collection also includes original exemplar specimens of European species whose types have been lost. Neotypes and lectotypes are designated from this material to improve nomenclatural stability in the group. Neotypes are designated for Amblyaspis forticornis (Nees, 1834), Isocybus grandis (Nees, 1834), Platygaster striolata Nees, 1834, and Trichacis tristis (Nees, 1834). Lectotypes are designated for Leptacis spinigera (Nees, 1834) comb. nov. and for Platygaster corvina Förster, 1861, with Platygaster henkvlugi Buhl, 1996 treated as a junior synonym. Platygaster mutica Nees, 1834 stat. rev., nomen dubium, is transferred from Synopeas.
Family Corethrellidae has a worldwide distribution with most known extant species occurring in the Neotropics, many with only the adult stages described. Despite previous efforts, one remaining problem in the taxonomy of Corethrellidae is the challenge of delimiting species due to the current range of morphological characters included in descriptions to date. This paper discusses additional morphological evidence to distinguish species and their phylogenetic relationships. Together with fresh samples collected in Bahia, the only state in the Northeast Region with records of corethrellids, and slide-mounted specimens from other regions, five new species are described: Corethrella pindorama sp. nov., C. patasho sp. nov., C. fuscifimbria sp. nov. and C. unifasciata sp. nov. based on female adults; and C. bifida sp. nov. based on male and female adults, and larval and pupal exuviae. We also provide complementary descriptions comprising the novel characters for 33 previously described species, including the immature stages of nine. Fifteen species are newly recorded for Bahia and the Northeast Region, of which two are new records for Brazil. Additionally, we provide remarks about the biology of species, an updated list of species recorded in Brazil and an updated taxonomic key of New World species, modified from Borkent (2008).
Enicospilus Stephens, 1835 is the largest genus of subfamily Ophioninae (Ichneumonidae) with more than 700 extant species worldwide that are mostly nocturnal and parasitoids of larvae of Lepidoptera. In this paper, the Vietnamese species of Enicospilus are reviewed for the first time. Of the total 82 recorded species, 10 species are described as new: E. aequiscleritalis sp. nov., E. bulbipennis sp. nov., E. centraliscleritiger sp. nov., E. circuliscleritalis sp. nov., E. gialaiensis sp. nov., E. hiepi sp. nov., E. melanothoracicus sp. nov., E. nigristernalis sp. nov., E. trui sp. nov., and E. tuani sp. nov. Fifty-two species are recorded for the first time from the country: E. abdominalis (Szépligeti, 1906), E. acutus Shimizu, 2020, E. argus Gauld & Mitchell, 1981, E. atoponeus Cushman, 1947, E. bacillaris Wang, 1997, E. bakerielli Gauld & Mitchell, 1981, E. bifasciatus (Uchida, 1928), E. biharensis Townes, Townes & Gupta, 1961, E. concentralis Cushman, 1937, E. corculus (Tosquinet, 1903), E. dasychirae Cameron, 1905, E. eastopi Gauld & Mitchell, 1981, E. enicospilus Nikam, 1972, E. exaggeratus Chiu, 1954, E. fittoni Nikam, 1980, E. flavocephalus (Kirby, 1900), E. formosensis (Uchida, 1928), E. fusiformis Chiu, 1954, E. gasteralis Nikam, 1980, E. grandis (Cameron, 1905), E. hamatus Gauld & Mitchell, 1981, E. hedilis Gauld & Mitchell, 1981, E. iapetus Gauld & Mitchell, 1981, E. insinuator (Smith, 1860), E. ixion Gauld & Mitchell, 1981, E. javanus (Szépligeti, 1910), E. laqueatus (Enderlein, 1921), E. longitarsis Tang, 1990, E. mythrus Gauld & Mitchell, 1981, E. nathani Gauld & Mitchell, 1981, E. nigribasalis (Uchida, 1928), E. nigristigma Cushman, 1937, E. nigriventris Nikam, 1975, E. nigronotatus Cameron, 1903, E. nigropectus Cameron, 1905, E. pallidistigma Cushman, 1937, E. pantanae Tang, 1990, E. pinguivena (Enderlein, 1921), E. pseudoconspersae (Sonan, 1927), E. purifenestratus (Enderlein, 1921), E. rhetus Gauld & Mitchell, 1981, E. riukiuensis (Matsumura & Uchida, 1926), E. sauteri (Enderlein, 1921), E. selmatos Chiu, 1954, E. strigilatus Tang, 1990, E. teleus Gauld & Mitchell, 1981, E. transversus Chiu, 1954, E. tripartitus Chiu, 1954, E. urus Gauld & Mitchell, 1981, E. verticinus (Roman, 1913), E. yonezawanus (Uchida, 1928), and E. zebrus Gauld & Mitchell, 1981. A key to all Vietnamese species of Enicospilus is provided.
The species of Aphaniosoma Becker, 1903 described from Egypt by Collin in 1949 are reviewed and lectotypes designated for Aphaniosoma creperum Collin, 1949, A. fissum Collin, 1949, A. lamellatum Collin, 1949 and A. sodalis Collin, 1949. All species known from the eastern Mediterranean and the Middle East are reviewed, with annotations, distributions and a key to species. The following 19 species are described as new and illustrated: A. acitergum sp. nov., A. aegyptium sp. nov., A. angulitergum sp. nov., A. captiosum sp. nov., A. cristatum sp. nov., A. curvistylus sp. nov., A. daedalum sp. nov., A. denticulosum sp. nov., A. flavipyga sp. nov., A. freidbergi sp. nov., A. interispina sp. nov., A. kravchenkoi sp. nov., A. longilingua sp. nov., A. lucidum sp. nov., A. meltseri sp. nov., A. miricercus sp. nov., A. palestinense sp. nov., A. praeditum sp. nov. and A. yaromi sp. nov. Biology and ecology are commented upon.
Molluscs are the second most species-rich phylum in the animal kingdom, yet only 11 genomes of this group have been published so far. Here, we present the draft genome sequence of the pulmonate freshwater snail Radix auricularia. Six whole genome shotgun libraries with different layouts were sequenced. The resulting assembly comprises 4,823 scaffolds with a cumulative length of 910 Mb and an overall read coverage of 72×. The assembly contains 94.6% of a metazoan core gene collection, indicating an almost complete coverage of the coding fraction. The discrepancy of ∼690 Mb compared with the estimated genome size of R. auricularia (1.6 Gb) results from a high repeat content of 70% mainly comprising DNA transposons. The annotation of 17,338 protein coding genes was supported by the use of publicly available transcriptome data. This draft will serve as starting point for further genomic and population genetic research in this scientifically important phylum.
An extensive survey of Linyphiidae spiders from Wulipo National Nature Reserve (NNR), Chongqing has been conducted, in which 24 species belonging to 16 genera are recorded including two new genera and eight new species described here as: Agyneta Hull, 1911, A. orthogonia sp. nov. (♂♀); Dicristatus gen. nov., D. minutus gen. et sp. nov. (♂♀); Dicymbium Menge, 1868, D. pingqianense sp. nov. (♂♀); Himalaphantes Tanasevitch, 1992, H. azumiensis (Oi, 1979) (♂♀); Indophantes Saaristo & Tanasevitch, 2003, I. wushanensis sp. nov. (♂♀); Ketambea Millidge & Russell-Smith, 1992, K. nigripectoris (Oi, 1960) (♂♀); Molestia Tu, Saaristo & Li, 2006, M. pollicaris sp. nov. (♂♀); Neriene Blackwall, 1833, N. calozonata Chen & Zhu, 1989 (♀), N. cavaleriei (Schenkel, 1963) (♂♀), N. emphana (Walckenaer, 1841) (♂♀), N. japonica (Oi, 1960) (♂♀), N. limbatinella (Bösenberg & Strand, 1906) (♀), N. longipedella (Bösenberg & Strand, 1906) (♂♀), N. oidedicata van Helsdingen, 1969 (♀); Prosoponoides Millidge & Russell-Smith, 1992, P. sinense (Chen, 1991) (♂♀); Ryojius Saito & Ono, 2001, R. simplex sp. nov. (♂♀); Stemonyphantes Menge, 1866, S. bifurcus sp. nov. (♂); Syedra Simon, 1884, S. oii Saito, 1983; Tapinopa Westring, 1851, T. guttata Komatsu, 1937 (♀); Tenuiphantes Saaristo & Tanasevitch, 1996, T. ancatus (Zhu, Li & Sha, 1986) (♂♀); Walckenaeria Blackwall, 1833, Walckenaeria asymmetrica Song & Li, 2011 (♂♀); Wuliphantes gen. nov., W. guanshan (Irfan, Wang & Zhang, 2022) gen. et comb. nov. (♂♀), W. tongluensis (Chen & Song, 1988) gen. et comb. nov. (♂♀), W. trigyrus gen. et sp. nov. (♂♀). Male of Tenuiphantes ancatus (Zhu, Li & Sha, 1986) is described here for the first time as new to science. The taxonomic status of Bathyphantes guanshan Irfan, Wang & Zhang, 2022 and Bathyphantes tongluensis (Chen & Song, 1988) is revised and proposed here as: Wuliphantes tongluensis (Chen& Song, 1988) gen. et comb. nov. (♂♀) and Wuliphantes guanshan (Irfan, Wang & Zhang, 2022) gen. et comb. nov. (♂♀), respectively. Morphological descriptions, photos of body and copulatory organs, as well as the locality map are provided.
Bujurquina is the most widely distributed and species-rich genus of cichlids in the western Amazon of South America. In this study we describe a new species from Peru from a hypothesized reverse flowing river system. Prior to the origin of the modern Amazon River at 4.5 Ma, this river system had its headwaters on the Iquitos arch, one of several main structural arches (swells) in the Amazon. Prior to the origin of the modern Amazon these arches formed topographic barriers of drainage basins in lowland Amazonia. For our analyses we use morphological and molecular data, analyzed through multivariate statistics and molecular phylogenies, respectivelly. For all valid species in the genus (except B. cordemadi and B. pardus) we additionally for the first time provide photographs of live specimens. Based on DNA phylogeny and coloration patterns we demonstrate that Bujurquina is divided into two main clades and based on this we provide a dichotomous key for all the species.
One of the major problems in evolutionary biology is to elucidate the relationships between historical events and the tempo and mode of lineage divergence. The development of relaxed molecular clock models and the increasing availability of DNA sequences resulted in more accurate estimations of taxa divergence times. However, finding the link between competing historical events and divergence is still challenging. Here we investigate assigning constrained-age priors to nodes of interest in a time-calibrated phylogeny as a means of hypothesis comparison. These priors are equivalent to historic scenarios for lineage origin. The hypothesis that best explains the data can be selected by comparing the likelihood values of the competing hypotheses, modelled with different priors. A simulation approach was taken to evaluate the performance of the prior-based method and to compare it with an unconstrained approach. We explored the effect of DNA sequence length and the temporal placement and span of competing hypotheses (i.e. historic scenarios) on selection of the correct hypothesis and the strength of the inference. Competing hypotheses were compared applying a posterior simulation analogue of the Akaike Information Criterion and Bayes factors (obtained after calculation of the marginal likelihood with three estimators: Harmonic Mean, Stepping Stone and Path Sampling). We illustrate the potential application of the prior-based method on an empirical data set to compare competing geological hypotheses explaining the biogeographic patterns in Pleurodeles newts. The correct hypothesis was selected on average 89% times. The best performance was observed with DNA sequence length of 3500-10000 bp. The prior-based method is most reliable when the hypotheses compared are not temporally too close. The strongest inferences were obtained when using the Stepping Stone and Path Sampling estimators. The prior-based approach proved effective in discriminating between competing hypotheses when used on empirical data. The unconstrained analyses performed well but it probably requires additional computational effort. Researchers applying this approach should rely only on inferences with moderate to strong support. The prior-based approach could be applied on biogeographical and phylogeographical studies where robust methods for historical inferences are still lacking.
Buchbesprechungen
(2023)
Campanula cervicaria steht in Hessen kurz vor dem Aussterben und wurde im Rahmen des Kooperationsvertrages zwischen der Botanischen Vereinigung für Naturschutz in Hessen (BVNH) und dem Land Hessen untersucht. Das Ziel der Untersuchung war, herauszufinden wo Campanula cervicaria in Hessen noch vorkommt und wie groß die Populationen sind. In Hessen sind aktuell noch 20 Populationen vorhanden. Fast 90 % der Populationen befinden sich in der Umgebung von Lißberg, Hirzenhain und Gedern im Westlichen Unteren Vogelsberg. Zwei weitere liegen bei Jossa im Spessart und bei Ober-Gleen im Nördlichen Vogelsberg-Vorland. Die größte Population befindet sich an der Kreisstraße 216 bei Hirzenhain am Forsthaus Luisenlust. Campanula cervicaria wächst in Hessen an sonnenexponierten Wegböschungen und Windwurfflächen, meist zusammen mit Hypericum hirsutum und Brachypodium sylvaticum. Um auch zukünftig die Bestände von Campanula cervicaria zu sichern, müsste ein Artenhilfskonzept erarbeitet werden.