Insecta Mundi
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Erythemis Hagen, 1861 (Odonata: Libellulidae: Sympetrinae) is a Neotropical genus with ten species in which morphological characters vary widely. The aim of this paper is to study the taxonomic diversity of the genus Erythemis and to test the diagnostic value of morphological characters used to discriminate species. The diagnostic value of the morphometric characters is tested using discriminant function analysis, principal component analysis, and graphical exploration of the data. A total of 134 characters were studied; of those, 53 are recoded and 81 are proposed in this work. Discrete characters such as color, genitalia, ventral teeth of male cercus, extension of dark basal area in hind wing, and morphometric characters of abdominal carinae and antenodal wing venation are the most useful for species determination. In contrast, abdomen length/HW length ratio, vulvar lamina length, and spines of femoral structure are highly variable. A lectotype is designated for Diplax credula Hagen, 1861. Taxonomic keys for males and females are included, and variation in several characters is presented.
0427
Lectotypes are designated for the following species-level taxa, based on specimens in the Museum of Comparative Zoology, Harvard University: Tetratomidae (Hallomenus scapularis Melsheimer, 1846; Hallomenus serricornis LeConte, 1878); Melandryidae (Hypulus bicinctus Horn, 1888; Dircaea liturata LeConte, 1866; Dircaea fusca LeConte, 1878; Dircaea prona LeConte, 1878; Dircaea riversi LeConte, 1884; Hypulus trifasciatus Melsheimer, 1846; Microtonus sericans LeConte, 1862; Scraptia fl avicollis Haldeman, 1848; Scraptia rugosa Haldeman, 1848; Melandrya maculata LeConte, 1850; Melandrya striata var. bicolor Melsheimer, 1846; Melandrya striata var.
thoracica Melsheimer, 1846; Hypulus fulminans LeConte, 1859; Microscapha arctica Horn, 1893; Microscapha clavicornis LeConte, 1866; Orchesia castanea Melsheimer, 1846; Orchesia gracilis Melsheimer, 1846; Orchesia ornata Horn, 1888; Amblyctis praeses LeConte, 1879; Dircaea sericea Haldeman, 1848; Serropalpus obsoletus Haldeman, 1848; Serropalpus substriatus Haldeman, 1848; Carebara longula LeConte, 1866; Hallomenus quadripustulata Melsheimer, 1846); Mycteridae (Mycterus canescens Horn, 1879; Mycterus quadricollis Horn, 1874); and Boridae (Crymodes discicollis LeConte, 1850).
0426
At Topes de Collantes Natural Park, Alturas de Trinidad, in the mountains of Guamuhaya province of Sancti Spiritus, Cuba, 30 species of scale insects belonging to 21 genera, four families and an endemic species were identifi ed. Specimens were deposited at the insect zoological collection of the Ecology and Systematics Institute (CZACC), Cuba. A literature review was carried out and the world data base on scale insects, ScaleNet was consulted. A cartographic map indicating the collecting sites at the scale of 1: 250,000 was created using MapInfo Professional Version 4.5 program. Twelve species are recorded for the fi rst time for the mountains of Guamuhaya and further 10 species are recorded for other locations. 82% of the species were polyphagous, 11% were oligophagous and 7% were monophagous. 57% were introduced species, 43% were native and 79% are cosmopolitan or widely distributed species. 30 species and 21 families of host plants were identifi ed, of which 23 plant species were new host plant records for 19 scale insect species, and 11 botanical families are for the fi rst time recorded as hosts for 10 scale insect species. There were signifi cant differences in the distribution of scale insects and their host plant species, botanical families and vegetation type.
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A total of 70 species of Nitidulidae are recorded from the state of Indiana. Nine of these species are recorded as new state records. The myrmecophile Amphotis ulkei LeConte, and the adventive Carpophilus marginellus Motschulsky, originally from Southeast Asia are added to the state fauna. The methods with which these new taxa were found are given, along with a brief discussion on trapping techniques used for the family as a whole.
Targeted use of vinegar-based baits and yellow sticky cards were used in addition to the general implementation of fermenting brown sugar and malt beer bait fi lled jugs, UV lighting, and Lindgren funnels. An updated checklist of all sap beetle species known to occur in Indiana is presented within a modern taxonomic framework for the family.
0423
Tiphallus torreon n. sp., the fi rst rhachodesmid milliped from Coahuila, Mexico, displays an iridescent turquoise pigmentation with patterned white paranotal markings and a truncated, subapical projection from the broad, non-descript gonopodal acropodite. Four genera – Strongylodesmus Saussure, Mexidesmus Loomis, and Ceuthauxus and Tiphallus, both by Chamberlin – contain forms exhibiting this general condition, but the last is the only one whose type species does. Synthetic treatments are essential to advance familial knowledge beyond the descriptive stage, and revising these four taxa would constitute a meaningful initial study. Rhachodesmidae extend from northern Nuevo León, Mexico, ca. 77 km (48 mi) from the Rio Grande, to central Costa Rica; Glomeridae (Glomerida), Platydesmidae (Platydesmida), and Stemmiulidae (Stemmiulida) show similar distributions whereas Allopocockiidae (Spirobolida) and Rhysodesmus Cook (Polydesmida: Xystodesmidae) traverse the river and occupy southernmost Texas. Tridontomidae, the other component of Rhachodesmoidea, occupies a small enclave in Alta Verapaz, Guatemala. Rhachodesmidae/oidea do not occur in Panama and are initially recorded from Belize; localities are needed from Honduras.
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The white coconut scale, Parlagena bennetti Williams, 1969 (Hemiptera: Diaspididae) is reported for the fi rst time on New Zealand fl ax, Phormium tenax J.R. Forst. & G. Forst. (Xanthorrhoeaceae), coconut, Cocos nucifera L., Manila palm, Veitchia merrillii (Becc.) H.E. Moore, oil palm, Elaeis guineensis Jacq. and an oil palm hybrid OxG: E. oleifera x E. guineensis (Arecaceae) in continental Colombia, and on coconut from Venezuela. Previously, P. bennetti was known only on the Caribbean islands of Trinidad and San Andres, causing serious damage to coconut, its only known host until now. A brief characterization of P. bennetti and an updated list of 23 species of scale insects of the family Diaspididae reported worldwide on Elaeis spp. is provided.
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Fifth instars for eight of the nine species of Microrhagus Dejean (Coleoptera: Eucnemidae: Melasinae:
Dirhagini), all endemic in the Nearctic region, are described and illustrated. Biological information is provided, along with a brief discussion of the larval morphology among the eight Nearctic species of Microrhagus. Adult descriptions
are provided for four new species. These new species include Microrhagus breviangularis new species, Microrhagus carinicollis new species, Microrhagus lecontei new species and Microrhagus opacus new species.
A checklist and identifi cation keys for both adults and most known larvae are provided.