Insecta Mundi
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0352
The Guadeloupe Archipelago, the French overseas Département de Guadeloupe, is a geographically associated group of islands and a natural biogeographic unit. The islands have been available for terrestrial colonization since the late Tertiary. From the viewpoint of beetle systematics and biodiversity, this is the most important set of islands of the Lesser Antilles because more species have been described or recorded from Guadeloupe than any other island or group in the Lesser Antilles. We present a summary of the 1338 beetle species recorded in the literature from the archipelago, in 60 families, and 719 genera. The families with the largest numbers of species are Curculionidae (420), Staphylinidae (153), Chrysomelidae (75), Cerambycidae (69), Scarabaeidae (64), and Tenebrionidae (59). Four hundred eighty two species are known only from one or more islands of the Guadeloupe group and likely speciated there. Guadeloupe is the type locality for an additional 59 species. At least 61 species have been accidentally introduced by human activities. A total of 261 species are known only from the Lesser Antilles including Guadeloupe. The remaining species are naturally more widespread in the Lesser Antilles, or the West Indies, and elsewhere in the New World. The actual number of species on the Guadeloupe Archipelago is estimated to be around 1850 or more species.
0159
This paper summarizes the published information on the beetle fauna of the northern Leeward Islands (Anguilla, Antigua, Barbuda, Nevis, Saba, St. Barthélemy, St. Eustatius, St. Kitts, St. Martin-St. Maarten, and smaller associated islands, excluding Montserrat). These islands are generally smaller, lower, and drier than the remaining Leeward and Windward islands of the Lesser Antilles island arc. The fauna contains 26 families, with 155 genera, and 218 species. The families with the largest number of recorded species are Staphylinidae (36), Cerambycidae (28), Scarabaeidae (25), Tenebrionidae (23), Curculionidae (18), and Carabidae (15). At least 7 species (3.2% of the fauna) were probably introduced to the island by human activities. Sixteen species (7.3%) are endemic (restricted) to a single paleo-island bank and likely speciated there. Twenty nine species (13.3%) are shared only with other islands of the Lesser Antilles (Lesser Antillean endemics), and 43 species (19.7%) are more widespread Antilles endemics. The remaining 123 species (56.4%) in the fauna are otherwise mostly widely distributed in the Antilles and the Neotropical Region. The local beetle fauna is largely an immigrant fauna and has mostly originated elsewhere than on the islands of the northern Leewards. Summary data on total species endemicity of the entire Lesser Antilles indicate the presence of at least 1278 endemic beetle species, which is a density of about 20.7 species per 100 km2. This is now equivalent to that of the endemic vascular plants of the Caribbean islands. This truly makes the Caribbean islands a biodiversity hotspot for beetles. For the northern Leewards, it is evident that the beetle diversity is markedly understudied, and that the actual number of species is many times higher than now known.
642
The dung beetle fauna of the Big Bend region of Texas (Coleoptera: Scarabaeidae: Scarabaeinae)
(2018)
This paper reports the results of a 2001-2009 field study of the scarabaeine dung beetle fauna (Coleoptera: Scarabaeidae) of the Big Bend region of Texas, a three-county area of the Trans-Pecos portion of the Chihuahuan Desert. The observed fauna comprises 10 native species, Canthon blumei Halffter and Halffter, C. imitator Brown, C. praticola LeConte, and C. mixtus Robinson; Onthophagus browni Howden and Cartwright, O. knausi Brown, O. velutinus Horn and O. brevifrons Horn; Copris arizonensis Schaeffer and Phanaeus texensis Edmonds; as well as two exotic species introduced in the 1970s, Digitonthophagus gazella (Fabricius) and Euoniticellus intermedius (Reiche). The existing native fauna antedates the completion of desertification approximately 9,000 yrs BP and is similar ecologically and taxonomically to those in southeastern Arizona and northern Mexico. Ecological distribution follows three broad, overlapping habitat zones: desert montane forest, desert grassland and desert scrub. Species accounts include diagnoses, geographic distribution data, and information on collection method, habitat distribution and daily activity.
0024
The seven genera and 13 species of dynastine scarabs recorded from the Bahamas are reviewed. Two of those species are endemic, including Cyclocephala dolichotarsa Ratcliffe and Cave, new species, described from Great Inagua Island. Eleven species are also known to occur in the USA and/or Cuba. Six species are probably not established based on infrequency of collection.
0139
The five genera and eight species of dynastine scarabs occurring in the Cayman Islands in the West Indies are reviewed. Two new, endemic species are described from Little Cayman, with supporting illustrations: Tomarus adoceteus Ratcliffe and Cave (Pentodontini), new species, and Caymania nitidissima Ratcliffe and Cave (Phileurini), new genus and species.
0433
The fauna of Dynastinae (Scarabaeidae) on the island of Saba, Dutch Caribbean, was investigated through fi eldwork during 2006 to 2015. Three species, belonging to the three tribes Cyclocephalini, Pentodontini and Phileurini, are newly recorded from Saba and are discussed, with summaries of all relevant information from the West Indies. Detailed locality data, temporal distributions, and habitus photographs are presented for each species.
0444
Pandirodesmus rutherfordi, n. sp., represented by 18 individuals including eight adult males, occurs in secondary forests near Charlotteville and Speyside, Tobago, Trinidad and Tobago. Along with the type and second species, P. disparipes Silvestri, from Guyana and known only from females, the segmental legs of P. rutherfordi alternate between long (anterior pairs) and short (posterior ones), spiracular openings are on straw-like tubules, and ozopores are located on paramedian metatergal spines. These features appear to be adaptations for biotopes of loose sand, detritus, or frass, and 17 specimens, including the six juveniles, exhibit coatings of “sand grains” that are loosely cemented together and to the smooth, translucent, grayish-white exoskeleton. The tubules and spines elevate the spiracles and ozopores above the coating, thereby ensuring that they remain open and functional.
The coating, which provides camoufl age and lends strength and rigidity to the poorly sclerotized exoskeleton, is a subuniform “pavement” that covers the entire animal except the labrum/clypeus, tarsal and antennal apices, prozonae, paraprocts, and the gonopods in males. Ramose/dendritic setae, particularly on narrowly rounded podo-/antennomeres, trap “sand grains,” and the ozopore secretions apparently constitute the “glue” that cements the coating, as evidenced circumstantially by layers of “sand” between the spines on the anterior metaterga, where they are physically closest. The alternating segmental leg lengths, in part due to differing ventrolateral and ventromedial origins, appear to be an adaptation for lateral/sideways motion in which the long (anterior) legs extend laterally and pull the body to the level of the short (posterior) ones, which continue the motion while the anterior legs extend to begin the next stroke. The opposing legs perform the complementary pushing motion a fraction after the long legs initiate the pulling stroke and hence are slightly and purposefully out of sync. An adult male paratype lacks the coating, probably because it had just molted and lacked time to amass it; the juvenile female paratype of P. disparipes also is “naked,” as was, according to Silvestri, the now lost adult female holotype. Until fresh material is collected, coatings cannot be confi rmed for P. disparipes even though it shares the anatomical modifi cations that seem adaptions for such. The minute, triramous gonotelopodites of P. rutherfordi are unlike any known for a chelodesmid, so the current generic placement, in a monotypic tribe in the nominate chelodesmid subfamily, is retained. With species in both South America and the southern Antilles, Pandirodesmus/ini had to exist on both the “proto-Antillean” terrane and the adjoining part of Pangaean Gondwana before the former rifted in the Cretaceous/Paleocene, ~66 million years ago, and P. rutherfordi is a remnant of the former population that became isolated on present-day Tobago when the terrane fragmented. Affi nity between Guyanan and southern Antillean platyrhacid millipeds (Polydesmida: Leptodesmidea) suggest that Pandirodesmus/ini may occur sporadically as far north in the island chain as St. Lucia.
724
In two separate occurrences, graduates of the Oregon Forest Pest Detector program discovered the exotic Agrilus cyanescens (Ratzeburg) (Coleoptera: Buprestidae) in Portland, Oregon, damaging a backyard shrub, Lonicera involucrata (Rich.) Banks ex Spreng. (Caprifoliaceae). Although first detected in the USA 99 years ago, the known occurrence nearest to Oregon is in Utah.
973
Thirteen new fossil eucnemid taxa (Coleoptera: Elateroidea) are described from amber deposits excavated from the vicinity of Santiago, Dominican Republic. Two new genera, Mioxylobius and Paleoquirsfeldia are described. The following 13 new species are described from Dominican amber: Mioxylobius bicolor, Balistica serrulata, Paleoquirsfeldia epicrana, Dyscharachthis dominicana, Idiotarsus poinari, Euryptychus antilliensis, Euryptychus hispaniolus, Plesiofornax caribica, Fornax dominicensis, Fornax serropalpoides, Dromaeolus argenteus, Nematodes miocenensis and Nematodes thoracicus. Each new species are both diagnosed and illustrated. Calyptocerus Guérin-Méneville and Lissantauga Poinar are shown to be congeneic, resulting in a new combination: Calyptocerus epicranis (Poinar, 2013). Summaries of fossil eucnemid discoveries, highlighting differing hypothesis of prehistoric Caribbean island formations/speciation, accounts of ancient Dominican Republic environmental conditions and Dominican Republic amber are provided.
ZooBank registration. urn:lsid:zoobank.org:pub:48A76A23-E48B-46B5-8A35-A27DD6134B6D
0187
Cithaeron praedonius O. P.-Cambridge 1872 (Araneae: Gnaphosoidea: Cithaeronidae) is an Old World species with a distribution from The Gambia, western Africa, and Greece to Malaysia and Australia. In the New World, it was recently found in Brazil, and is now reported for the first time in North America, in the United States. Multiple individuals of both sexes and various life stages, including multiple eggsacs, have been found in a home in Port Richey, Pasco County, Florida. An adult female was found on the outside wall of the house feeding on another spider, suggesting that C. praedonius are no longer contained as a spot introduction in this one house. Observations in captivity indicate that this species may prefer feeding on other spiders. The eggsac and molting nest are described for the first time, and the first records on fecundity are reported.
0036
894
The jumping bristletail Pedetontus gershneri Allen, 1995 (Microcoryphia: Machilidae) is reported from the state of Alabama, USA, for the first time, extending its known range east-southeast by roughly 588 km. The first partial mtDNA barcode was generated for the species. Notes on color variation and sampling needs of Microcoryphia are briefly discussed.
911
Lissomus quisqueya new species and L. woodruffi new species are described. Both species are reported from the Dominican Republic on the island of Hispaniola. These are the first species of Lissomus Dalman reported from the Greater Antilles. Lissomus quisqueya is recorded from montane mesic forests in the Cordillera Central from Dajadon and La Vega provinces. Lissomus woodruffi is recorded from Barahona, Independencia and Pedernales provinces from montane mesic forest in the Sierra de Bahoruco. Morphologically, these species are most similar to members of the L. discedens Bonvouloir species group from Mesoamerica and South America. Known sites of occurrence of L. quisqueya and L. woodruffi are remnants of formerly more extensive mesic forests. Some of the specimens were found in secondary forests and ecotonal areas at sites near to primary forest or remnants, and all these forests are threatened by anthropogenic activities and stochastic climate changes.
0203
Four milliped species, substantiated by preserved voucher samples, are reported from Prince Edward Island, Canada. All are introduced European species that now occur widely in both Canada and the United States, and the panglobal Asian paradoxosomatid, Oxidus gracilis (C. L. Koch, 1847), is listed as probable. Choneiulus palmatus (Némec, 1895) (Julida: Blaniulidae) is newly recorded from New Brunswick, and four representatives of the Julidae are cited from Nova Scotia. Discovery of Cylindroiulus punctatus (Leach, 1815) (Julidae) in this province constitutes the second record from both Canada and North America, the other being in Newfoundland.
0264
Aplagiognathus Thomson, 1861 (Coleoptera, Cerambycidae, Prioninae, Macrotomini) and its two species, A. spinosus (Newman, 1840) and A. hybostoma Bates, 1879, are redescribed and figured. As the type of A. spinosus is apparently lost, a neotype for the species is designated herein as is a lectotype for A. hybostoma. Keys to the North and Central American genera of Macrotomini (excluding the West Indies) and to Aplagiognathus species are provided. Details on the numerous changes in the nomenclatural history of the genus are also chronicled.
1041
Members of the genus Centris Fabricius (Hymenoptera: Apoidea: Anthophila) constitute a significant component of the Neotropical (including insular) bee fauna, exhibiting high species richness, a moderate to large body size, and extensive interactions with various important plant groups. Females of most species possess specialized morphology adapted for collecting oils from flowers. This study documents the presence of the genus in Cuba, recognizing six species: C. aethiops Cresson, C. cornuta Cresson, C. fulviventris Cresson, C. poecila Lepeletier, C. taina Genaro and Breto new species, and C. tarsata F. Smith. Detailed information is provided for each species, encompassing a diagnosis, natural history, floral associations, seasonal occurrence, and distribution. Centris taina new species is described from Cuba, based on both sexes, which were previously misidentified as C. versicolor (Fabr.) for females and C. fasciatus F. Smith for males due to sexual dimorphism. Centris tarsata is reported as a new national record for Cuba, possibly introduced by humans from South America and now established and widely distributed across the entire island. A key to differentiate the Cuban species of Centris is presented.
ZooBank registration. urn:lsid:zoobank.org:pub:257916DF-2129-4694-876C-49C858046BF6
0229
Currently, the genus Chimarra Stephens (Trichoptera: Philopotamidae) is represented in the Oriental Region by 259 species. Of these, 61 species have been described or recorded from Vietnam. In this paper, 9 new species from Vietnam are described and illustrated (Chimarra aculeata, C. carinata, C. corneola, C. insolita, C. mina, C. prominens, C. rostrata, C. undulata, and C. ungula). In addition, 3 new country records are noted (Chimarra areli Malicky and Mey, Chimarra pipake Malicky and Chantaramongkol, and Chimarra suthepensis Chantaramongkol and Malicky), and 1 new species group (minuta Group) is proposed and populated. An additional species group (georgensis “Group”), with 1 new species from Vietnam, but otherwise only known from Africa, is discussed, but not formally defined. A table listing all known Vietnamese species of Chimarra is included, along with discussion of variability in the anal veins of the forewing found within this genus, and its relevance for defining subgenera and species groups.
0051
In the eastern United States, the genus Cotinis Burmeister previously contained only C. nitida (L.), the common economic pest known as the "Green June Beetle". A new species from the Florida Keys, Cotinis aliena, is here described and illustrated. A checklist is provided for the genus, which includes 27 valid New World species, and 44 synonyms.
0248
The genus Gromphas Brullé (Coleoptera: Scarabaeidae) comprises four species, of which G. aeruginosa (Perty) and G. amazonica Bates are known to occur in Peru. This paper presents a revised description of Gromphas as well as illustrated diagnoses and distributional and ecological data on the Peruvian species.
805
The genus Ochodaeus in Italy: taxonomy and distribution (Coleoptera: Scarabaeoidea: Ochodaeidae)
(2020)
The author provides a taxonomic, nomenclatural and distributional review of the genus Ochodaeus Dejean, 1821 (Coleoptera: Scarabaeoidea: Ochodaeidae) in Italy. All Italian populations have been confirmed to belong to a single species, O. chrysomeloides (Schrank, 1781). After the study of a syntype, O. cychramoides Reitter, 1892, formerly considered an Italian endemic, is confirmed to be a junior synonym of O.chrysomeloides. Type material of O. chrysomeloides is believed to be destroyed, therefore a neotype is here designated and deposited at the Natural History Museum of Vienna, Austria. A lectotype is here designated for O. cychramoides and deposited in the Hungarian Natural History Museum of Budapest, Hungary. The Italian distribution of O. chrysomeloides is given in detail and illustrated by a map.