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A new cryptic species, Aleochara (Xenochara) castaneimarmotae Klimaszewski, Webster, and Brunke, new species (Coleoptera: Staphylinidae: Aleocharinae), associated with Marmota monax (Linnaeus) burrows and caves in eastern North America, is described and illustrated. A key to Canadian species of subgenus Xenochara Mulsant and Rey and revised distributions of the taxonomically difficult fumata species group are provided. Aleochara quadrata Sharp is recorded from Washington and Oregon for the first time.
Obligate endoparasitic oomycetes are known to ubiquitously occur in marine and freshwater diatoms, but their diversity is still largely unexplored. Many of these parasitoids are members of the early-diverging oomycete lineages (Miracula, Diatomophthora), others are within the Leptomitales of the Saprolegniomycetes (Ectrogella, Lagenisma) and some have been described in the Peronosporomycetes (Aphanomycopsis, Lagenidium). Even though some species have been recently described and two new genera were introduced (Miracula and Diatomophthora), the phylogeny and taxonomy of most of these organisms remain unresolved. This is contrasted by the high number of sequences from unclassified species, as recently revealed from environmental sequencing, suggesting the presence of several undiscovered species. In this study, a new species of Miracula is reported from a marine centric diatom (Minidiscus sp.) isolated from Skagaströnd harbor in Northwest Iceland. The morphology and life cycle traits of this novel oomycete parasite are described herein, and its taxonomic placement within the genus Miracula is confirmed by molecular phylogeny. As it cannot be assigned to any previously described species, it is introduced as Miracula islandica in this study. The genus Miracula thus contains three described holocarpic species (M. helgolandica, M. islandica, M. moenusica) to which likely additional species will need to be added in the future, considering the presence of several lineages known only from environmental sequencing that clustered within the Miracula clade.
Rhytidaphora Reshchikov & Quicke gen. nov. (type species Rhytidaphora thailandica Reshchikov & Quicke gen. et sp. nov.) from Thailand is described and illustrated. It belongs to the tribe Euryproctini of the subfamily Ctenopelmatinae (Hymenoptera, Ichneumonidae) based on the absence of glymma and the subapical notch on the ovipositor. The new taxon differs from all other genera of Euryproctini by the occipital carina being broadly incomplete dorsally, the hypostomal carina joining the occipital carina shortly before the base of the mandible, distinctly pectinate tarsal claws, and immovably fused and strongly sculptured second and third metasomal tergites.
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.
Although Sweden is a country with a comparatively well-known fauna, there are still many species that await discovery, especially in the boreal regions. In this study five new species of Diplazontinae, Homotropus klopfsteinae sp. nov., Homotropus hellqvisti sp. nov., Homotropus mugerwai sp. nov., Homotropus riedeli sp. nov. and Woldstedtius aureotibialis sp. nov., are described. Sussaba roberti Klopfstein, 2014 and Homotropus megaspis (Thomson, 1890) are reported for the first time from Sweden. Four of the new species are described from boreal areas, which highlights the need to further investigate the river- and seaside areas of the western taiga.
We describe two new species of Ctenocerinae (Pompilidae) from Asia, i.e., Ctenocerus srilankae Shimizu sp. nov. from Sri Lanka and Paraclavelia arabiae Shimizu sp. nov. from Oman. These represent the first records of Ctenocerus Dahlbom, 1845 and Paraclavelia Haupt, 1930 in Asia. Two new combinations and a new synonymy are proposed: Ctenocerus fasciatus (Smith, 1851) (= Micropteryx fasciata Smith, 1851); Paraclavelia decipiens (Arnold, 1932) (= Clavelia decipiens Arnold, 1932); and Ctenocerus Dahlbom, 1845 (= Euclavelia Arnold, 1932). We discuss the difficulty of systematics of Ctenocerinae at generic level. The head and pronotal structures of Ctenocerus and Paraclavelia are presumably specialized for preying on trapdoor spiders. These structures are considered to have evolved independently of other unrelated parasitoid Pompilidae that have been confirmed or proposed to prey on trapdoor spiders. We also discuss the biogeographical distribution of these genera.
We have been surveying a gypsy moth, Lymantria dispar (Lep., Lymantriidae), population in the oak forest of Klingenbach near Eisenstadt, Austria, since 1992. During the last gradation from 1993 to 1996, we studied the natural enemy complex at this site in comparison with other locations where no outbreak occurred (HOCH et al. 2001). During the latency years, an experimental study on the impact of predators on L. dispar pupal populations was performed (GSCHWANTNER et al. 2002). The population density was recorded regularly; in the winter 2001/02, the egg mass surveys indicated a rising population after seven years of latency. We used this opportunity to study the parasitoid complex in the progradation phase. This phase of gypsy moth population dynamics was not studied in our previous work. Moreover, it allowed us to repeat the investigation during the outbreak after 11 years.
Chrysidea pumiloides Zimmermann, 1956 and its Malagasy allies are taxonomically revised. As a result, C. pumiloides and C. phoebe Zimmermann, 1956 are redescribed; two new species, C. vazimba sp. nov. and C. merina sp. nov., are described from museum collections, and another new species, C. rioae sp. nov., is described based on a male recently collected in Southern Madagascar, at Berenty Reserve. The habitus of the holotypes and the male genitalia are illustrated and the key to Malagasy Chrysidea Bischoff, 1913 is updated.
The paper provides the first illustrated key to all described genera of Ceinae, i.e., Bohpa Darling, 1991, Cea Walker, 1837, and Spalangiopelta Masi, 1922. Based on the study of the original material, the genus Diparisca Hedqvist, 1964 stat. nov. is removed from the synonymy with Spalangiopelta and its higher classification is discussed. Spalangiopelta rameli sp. nov. and S. viridis sp. nov. are described from Greece and the Canary Islands, respectively.
The world species of Netomocera Bouček, 1954 (Hymenoptera Linnaeus, 1758: Pteromalidae Dalman, 1820), excluding those from the Oriental region, are revised. The Oriental species are excluded because their types could not be examined, the species limits could not be reliably assessed based on original descriptions and available Oriental material was scarce. Eighteen species, including 11 species described as new, are recognized: N. africana Hedqvist, 1971; N. alboscapus Hedqvist, 1971; N. amethysta sp. nov.; N. celebensis sp. nov.; N. cyanocephala sp. nov.; N. desaegeri sp. nov.; N. formiciformis sp. nov.; N. gloriosa sp. nov.; N. irregularis sp. nov.; N. masneri sp. nov.; N. merida sp. nov.; N. meridionalis sp. nov.; N. nearctica Yoshimoto, 1977; N. ramakrishnai Sureshan, 2010; N. rufa Hedqvist, 1971; N. sedlaceki Bouček, 1988; N. setifera Bouček, 1954; N. virgata sp. nov. The female brachypterous form of N. nearctica and the male of N. alboscapus are described for the first time. A key to both sexes is provided, as well as diagnoses, descriptions and illustrations for all treated species. The genus is reported for the first time in the Neotropical region. For several species, new distributional records are also given.