Insecta Mundi
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0179
Curculionoidea (Coleoptera) of the West Indian island of Dominica are composed of 111 genera and 214 species and subspecies. Some of the species listed are morphospecies, or are known to be undescribed, but all are identified at least to genus. Previously the fauna was recorded as 31 species. Numbers presented herein represent a seven-fold increase in species diversity. Furthermore, the widespread nature of many species demonstrates that the supposedly endemic faunas of many West Indian islands may be based on collecting biases or a lack of people capable of providing species level identifications.
0178
The beetles of Martinique, Lesser Antilles (Insecta: Coleoptera); diversity and distributions
(2011)
This paper summarizes the published information on the beetle fauna of the island of Martinique, in the Lesser Antilles. The fauna is known to contain 42 families, with 201 genera, and 270 species. The families with the largest numbers of species are Cerambycidae (57), Curculionidae (43), Scarabaeidae (42), Tenebrionidae (18), and Staphylinidae (17). At least 15species (5.5%) were probably accidentally introduced to the island by human activities. Forty six species (17.0%) are endemic (restricted) to the island and likely speciated on the island. Sixty seven species (24.8%) are shared only with other islands of the Lesser Antilles (Lesser Antillean endemics), and 26 species (9.6%) are more widespread Antilles endemics. The remaining 116 species (42.8%) in the fauna are otherwise mostly widely distributed in the Antilles and the Neotropical Region. The Martinique beetle fauna has mostly originated elsewhere than on Martinique and is largely an immigrant fauna from other islands of the West Indies or the continental Neotropics. The numbers of Martinique species shared with other larger islands of the Lesser Antilles are (north to south) Montserrat (73), Guadeloupe (175), Dominica (98), St. Lucia (68), St. Vincent (93), and Grenada (88). Undoubtedly, the real number of species on Martinique is much higher than now reported and may actually be around 1600 or more species.
0177
Saba Island (Caribbean Netherlands) is one of the northernmost islands of the Lesser Antilles. It is only 13 square kilometers but contains a wide variety of potential spider habitats including dry, moist, and elfin forests. As part of a collaborative effort between Conservation International and Saba Conservation Foundation, during a several week period in March and May 2008 we briefly surveyed the island for spiders and other arthropods. This survey, the first for spiders of Saba, resulted in the identification of 18 families and 76 spider species, including six new species that will be described elsewhere and may be endemic to Saba. The species richness of Saba’s spider fauna is considerably higher than that reported from other small Caribbean islands. We conclude this is probably a combined result of undersampling and lower habitat diversity on these other islands.
0176
A list of taxa belonging to Xylotrupes Hope (Scarabaeidae: Dynastinae: Dynastini) is presented which incorporates several taxonomic actions: X. australicus darwinia Rowland comb. nov.; X. damarensis Rowland stat. nov.; X. lorquini zideki Rowland comb. nov.; X. macleayi szekessyi Endrödi comb. nov.; X. pachycera Rowland stat. nov.; X. philippinensis philippinensis Endrödi stat. nov.; X. philippinensis peregrinus Rowland comb. nov.; X. sumatrensis tanahmelayu Rowland comb. nov.; X. tadoana Rowland stat. nov.; X. telemachos Rowland stat. nov.; X. wiltrudae Silvestre stat. nov. Two new taxa are described: X. carinulus sp. nov. and X. clinias buru ssp. nov. Lectotypes are designated for X. lamachus Minck and X. clinias Schaufuss. Xylotrupes lamachus is found to be a junior subjective synonym of X. ulysses (Guérin-Méneville), new synonymy.
0175
Neoma, a new genus of Cerambycidae (Coleoptera: Cerambycidae: Prioninae: Macrotomini) is described for Mallodonopsis corrosus Bates, 1879, compared to related genera (Aplagiognathus Thomson, 1861; Archodontes Lameere, 1903; and Mallodonopsis Thomson, 1861), and its tribal position discussed. A lectotype for Mallodonopsis corrosus is here designated with the species redescribed and figured.
0174
The Orizabus Fairmaire (Coleoptera: Scarabaeidae: Dynastinae: Pentodini) of the USA are reviewed. Orizabus pinalicus new species and O. mcclevei new species are described. Lectotypes are here designated for eight species names: Bothynus pyriformis LeConte, Pseudaphonus lucidus Casey, Orizabus snowii Horn, Orizabus cultripes Fairmaire, Orizabus isodonoides Fairmaire, Orizabus sallei Fairmaire, Orizabus fontinalis Casey, and Orizabus ponderosus Casey. Illustrations of diagnostic characters and a key to the five included species are presented. The Mexican species O. isodonoides and O. rubricollis Prell are also illustrated for comparison to the new species.
0173
A revision of the genus Gymnetina Casey, 1915 (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini)
(2011)
The genus Gymnetina Casey (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini) is redescribed and revised. Three new species and one new subspecies are described: G. borealis Warner and Ratcliffe, G. grossepunctata Ratcliffe and Warner, G. howdeni Warner and Ratcliffe, and G. cretacea sundbergi Warner and Ratcliffe. Gymnetina salicis (Bates), new status, is removed from synonymy with G. cretacea (LeConte), and G. alboscripta (Janson) is transferred from Gymnetis MacLeay to Gymnetina becoming Gymnetina alboscripta (Janson), new combination. Redescriptions of previously known species, a key for identification, and illustrations of the six species are provided. A brief biogeographical analysis suggests that ancestral taxa dispersed northwards from Guatemala and Mexico to the southwestern United States.
0172
Acoma howdenorum, Acoma westcotti, Acoma quadrilaminata, and Acoma cimarron (Coleoptera: Scarabaeidae: Melolonthinae), all new species, are described from Yuma County, Arizona, USA, and Baja California Sur, Baja California (Norte), and Sonora, Mexico, respectively. Habitus of the four new species is illustrated, and an updated key to the described species in the genus is provided. Distribution and variation of Acoma glabrata Cazier are also discussed.
0171
The monotypic aesaline genus Lucanobium Howden and Lawrence (Coleoptera: Lucanidae) was previously known only from Venezuela. A second species is here described as new from French Guiana, extending the range of the genus approximately 1800 km to the southeast. The generic description of Lucanobium is updated with respect to the discovery of a second species.
0170