Insecta Mundi
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0071
Two samples of the chordeumatidan family Rhiscosomididae (Rhiscosomides mineri Silvestri, 1909) and 35 of the Conotylidae establish these taxa in the Alexander Archipelago and continental parts of the Alaskan Panhandle, USA, and northern coastal British Columbia (BC), Canada. Rhiscosomides mineri is also recorded from southwestern BC and, for the first time, from Washington State, USA. Two conotylids were recovered, a juvenile male of ?Bollmanella Chamberlin, 1941, and 3 males and 33 females of a possibly parthenogenetic form of Taiyutyla Chamberlin, 1952, conforming generally to T. shawi and T. lupus, both by Shear, 2004, on Vancouver Island. Diplopoda are predicted to inhabit the southern Yukon Territory.
0105
With documentation of an unidentifiable adult female and juvenile Tingupidae (Chordeumatida), Kodiak Island, Alaska, becomes the westernmost indigenous diplopod locality in North America including continental islands. The northernmost and most proximate locality, Yakutat, lies ca. 935 mi (1,496 km) to the eastnortheast, while Haines, the type locality of Tingupa tlingitorum Shear and Shelley, some 1,196 mi (1,914 km) in this direction, is the most proximate familial site. Kodiak is also one of the most remote indigenous milliped localities in the Pacific, the most proximate ones to the west and south, Kamchatka, Russia, and the Hawaiian Islands, United States, being over 3,300 mi (5, 280 km) distant. Tingupidae is recorded for the first time from Canada excluding the Queen Charlotte Islands, and geographically remote, ostensibly indigenous records from the North Pacific Ocean and environs are tabulated.
0083
The class Diplopoda, represented by the families Spirostreptidae (Spirostreptida) and Paradoxosomatidae (Polydesmida), is recorded from Saudi Arabia for the first time. Archispirostreptus transmarinus Hoffman, 1965 (Spirostreptidae) inhabits the Jabal Al-Hijaz Mountains in the southwest, and the Paradoxosomatidae, represented by an unidentifiable, indigenous female, occurs in a “wadi” in the center of the country. Other Middle Eastern familial records are documented, and occurrences in the Arabian Peninsula are mapped. Males, necessary to identify the paradoxosomatid, may be encountered if samplings are timed to coincide with seasonal rains.
0079
The formerly monotypic weevil genus Platytenes Pascoe (Coleoptera: Curculionidae: Cryptorhynchinae: Cryptorhynchini: Cryptorhynchina) as treated here, includes two commonly encountered and broadly distributed species in the eastern Indo-Australian region. Label data indicate that both species are associated with semicultivated betel palm (Areca catechu L., Arecaceae) and human mediated dispersal is suggested to have influenced their present-day distribution. Herein, we provide a diagnosis for Platytenes and redescribe its type species, P. varius Pascoe. We also describe P. occultus Setliff and Larson, a new species from the Solomon Islands. New host and locality records are provided, including the first records of the genus occurring on Ambon Island, the Bismarck Archipelago, D’Entrecasteaux Islands, and many previously unreported localities on New Guinea. A full bibliography, key to species, and distribution map for the genus are also provided.
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Two species of Xyloryctes occur in the United States: X. jamaicensis (Drury) and X. thestalus Bates. Identification and distribution of these species has long been confused but is reviewed and clarified here. Xyloryctes jamaicensis occurs only in the eastern half of the U.S. and not in the southwestern U.S. as previously thought, while X. thestalus occurs in Guatemala and southern Mexico northwards to the southwestern United States. This hypothesis is corroborated by biogeographical and host plant data. Three new synonyms are listed for X. thestalus: X. faunus Casey 1915, X. hebes Casey 1915, and X. thestalus borealis Endrödi. The decline of Fraxinus spp., the food plant of Xyloryctes species, as a result of damage caused by the introduced emerald ash borer (Agrilus planipennis Fairmaire; Buprestidae) in the United States might portend a similar decline for Xyloryctes species in North America.
0069
This study provides a species-level phylogeny and morphological characterization for the Neotropical brassoline genus Dasyophthalma Westwood, 1851. A revised generic definition is given, and two species groups are proposed. Diagnoses and illustrations of habitus and genitalia are provided for all species. Wing color, male scent organs, and male and female genitalic morphology are characterized and discussed.
0073
The beetle fauna of the island of Barbados is summarized. It is now known to contain 202 genera, and 254 species (in 40 families), of which 232 are named at the species level. Undoubtedly, the actual numbers of species on Barbados are much higher than now known. Nine species are possibly endemic to the island, 15 have been intentionally introduced, and 51 have probably been accidentally introduced through human activity. The remaining 157 named species may occur naturally as a result of natural over-water dispersal processes. These species mostly have a wide distribution in the Antilles and Latin America. The total named fauna is thus about 72% naturally occurring, and 28% the result of human-aided dispersal.
0078
Recent extensive and intensive field work by the team of M. A. Ivie on the Lesser Antillean island of Montserrat suggests that a mean of 827 beetle species may be expected on that island. This datum makes possible the generation of hypotheses of the probable beetle species diversity on other islands of the Lesser Antilles as a function of the areas of the islands. Figures are given for the presently known, estimated total, and estimated number of unknown species for each principal island. This predicts that many hundreds (if not thousands) of beetle species remain to be discovered. This is of importance to land management and conservation interests on these rapidly changing and ecologically fragile islands.
0106
The published beetle fauna of the island of St. Lucia is summarized. It contains 135 genera, and 175 species in 25 families. Four species are accidentally introduced by human activities. Twenty three species are endemic (restricted) to the island. Twenty seven species on St. Lucia are shared only with other islands of the Lesser Antilles, and 22 species are widespread Antilles endemics. The remaining 56.6% of the fauna is otherwise mostly one which is widely distributed in the Antilles and the Neotropics. This suggests that it is mostly an immigrant fauna originating in the continental Neotropics. Undoubtedly, the actual numbers of species on St. Lucia are many times higher than now reported and may originally have been as high as around 1400 species. Of the St. Lucia species known to occur on other islands, the largest numbers are shared with Guadeloupe (102), St. Vincent (79), and Martinique (55).
0065
Based on a study of the characters used to define it, the genus Euphoriopsis Casey is placed in synonymy with Euphoria Burmeister. Euphoria punicea Janson is placed in synonymy with Euphoria steinheili Janson. Morphological characters supporting the synonymies, and the species' distributions and biological data are reviewed.
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0094
Geographic variation and subspecific taxonomy of United States populations of the tiger beetle Cicindela obsoleta Say are reviewed. Study of primary types and 1,424 museum specimens indicates that four subspecific entities are present in the U.S., for which the valid names are C. o. obsoleta Say, C. o. santaclarae Bates, C. o. vulturina LeConte, and C. o. neojuvenilis Vogt. All four subspecies are illustrated, including many color variants. ArcView Geographic Information System (GIS) computer software is used to study the distribution of these subspecies in the United States. Cicindela o. obsoleta and C. o. santaclarae are only partially allopatric, with extensive areas in Arizona, New Mexico, and Texas where their distributions overlap. Specimens intermediate in their elytral markings between C. o. obsoleta and C. o. santaclarae are reported from localities in New Mexico and Texas where these two subspecies co-occur. In contrast, C. o. vulturina and C. o. neojuvenilis are largely allopatric and show little intergradation with the C. o. obsoleta - C. o. santaclarae complex. It has been suggested recently that disjunct (but as yet unnamed) populations of C. o. vulturina in Missouri and Arkansas may represent a separate subspecies of C. obsoleta. However, the color and elytral pattern characteristics which have been interpreted as diagnostic features of these disjunct populations are also found in many Texas populations of C. o. vulturina, suggesting that the Arkansas and Missouri populations do not merit recognition as a separate subspecies on the basis of these characters alone.
0077
The classification of the genus Megalographa Lafontaine and Poole, 1991, is reviewed and the five known species diagnosed. The genus is essentially restricted to the New World, although one species M. biloba (Stephens) is migratory and has occasionally straggled to western Europe. A new species (Megalographa talamanca Lafontaine and Sullivan) endemic to the Talamanca Mountain Range in Costa Rica is described. Adults and genitalia are illustrated.
0102
The Southeast Asian scarab beetle genus Peltonotus Burmeister (Scarabaeidae: Dynastinae) is associated with aroid flowers and possesses a unique, articulated maxillary tooth. We describe five new species of Peltonotus: P. animus and P. cybele from Sumatra, P. favonius from Vietnam, P. mushiyaus from Borneo, and P. tigerus from Thailand. The circumscription of P. karubei Muramoto is broadened to include new color variation, and the body size range for the genus is increased with Peltonotus mushiyaus, n. sp., now being the smallest member of the genus. We provide an amended key to species, distribution maps, diagnoses and accompanying comparative images, and discuss classification of the genus within the Scarabaeidae.
0091
An annotated list is presented for 81 species of lady beetles (Coccinellidae: Coleoptera) that occur in the state of Iowa, U.S.A., based on literature searches and a review of over 3500 specimens in institutional and private collections. The list includes new state records for Scymnus tenebrosus Mulsant, Diomus debilis (LeConte), Hyperaspis lateralis Mulsant, Hyperaspis deludens Gordon, Epilachna borealis (F.), and Subcoccinella vigintiquatuorpunctata (L.), as well as county records for the non-native species, Harmonia axyridis (Pallas). Collection records are discussed for Nephaspis oculatus (Blatchley), Hyperaspidius militaris (LeConte), Coccinella californica Mannerheim, and S. vigintiquatuorpunctata, which have Iowa records that are disjunct from their larger geographic distributions in North America. I also discuss collection records and the need for additional collecting of coccinellids in Iowa, especially Adalia bipunctata (Schneider), Coccinella transversoguttata richardsoni Brown, and Coccinella novemnotata Herbst, which were once common and widespread but have declined drastically over much of North America, including Iowa.