Time filter

Source Type

Berkeley, CA, United States

Poinar G.,Oregon State University | Brown A.E.,629 Euclid Avenue | Legalov A.A.,Russian Academy of Sciences
Fossil Record

A new weevil species (urn:lsid:zoobank.org: act:2D5E9E4A-A250-4D0A-AF69-CF4753436686), Pseudopilolabus othnius Poinar, Brown and Legalov, sp. nov. (Coleoptera: Attelabidae), is described from Dominican amber. The new species is close to the extant P. viridanus (Gyllenhal, 1839) and P. splendens (Gyllenhal, 1839) but differs by having a bronzed body, narrower and more convex elytral intervals, long antennae reaching the middle of the pronotum, and weakly convex eyes; from P. rugiceps (Voss, 1925) it differs by having a smoother pronotum without transverse rugosity; from P. chiriquensis (Hamilton, 1994) it differs by having indistinctly protuberant humeri and the elytra nearly parallel from the humeri to the midpoint. The fossil weevil is the first record of the tribe Pilolabini (Attelabidae) from the West Indies and the first record of the Attelabidae from any amber source. © Author(s) 2015. Source

Poinar G.,Oregon State University | Brown A.E.,629 Euclid Avenue
Cretaceous Research

Two new species of toad bugs (Nerthra bichelata sp. n. and Gelastocoris curiosus sp. n.) (Hemiptera: Gelastocoridae) are described from Myanmar amber. Diagnostic characters of N. bichelata sp. n. are the large paired ocelli, subequal claws on protarsus that is fused with the protibia, slender profemur bearing two short, prominent ventral teeth, a large spherical terminal antennal segment and an elongate terminal segment of the rostrum. Diagnostic characters for G. curiosus sp. n. are paired, equal claws on the single-segmented, articulated protarsus, lateral margin of pronotum with a triangular protrusion and relatively narrow profemora with a series of broad transverse thickenings on the apical half of the ventral surface. These are the first descriptions of Gelastocoridae in amber and the first record of Gelastocorinae in Asia. © 2016 Elsevier Ltd. Source

Poinar Jr. G.,Oregon State University | Legalov A.A.,Russian Academy of Sciences | Brown A.E.,629 Euclid Avenue
Palaeontologia Electronica

A new subtribe (Brachycamacina n. subtribe), genus and species (Brachycamacus gyrommatus gen. n., sp. n.) (Coleoptera: Curculionidae: Entiminae: Naupactini) of weevils are described from Dominican amber. The new subtribe differs from the nominative subtribe of the tribe Naupactini by the following combination of characters: prominent tooth on the profemur, antennae insertions in the middle of the rostrum, all tibiae with mucros, denticulate inner margins of the tibiae, apical two-thirds of the protibiae widened and a very short scape. This represents the second broad-nosed weevil described from Dominican amber. © Palaeontological Association, November 2013. Source

Poinar Jr. G.,Oregon State University | Kritsky G.,College of Mount St. Joseph | Brown A.,629 Euclid Avenue
Historical Biology

A new fossil cicada, Minyscapheus dominicanus n. gen., n. sp. Poinar, Kritsky and Brown (Hemiptera: Cicadidae) is described from Dominican amber. The small size distinguishes the new genus from all extant West Indian cicadas. M. dominicanus aligns with the Hispaniolan Uhleroides clade; however, it differs from the two endemic Uhleroides species and other West Indian members of the genus. Diagnostic characters include a narrow pronotal collar with pointed lateral angles, a narrow scutellum, tegmina with a narrow, elongated costal area (R2 cell), wing with length of A3 vein greater than half length of vannus and additional venation features. Two erythraeid mites are attached to the mesonotum of the fossil cicada. This is the first description of an adult cicada in amber. © 2012 Copyright Taylor and Francis Group, LLC. Source

Poinar Jr. G.O.,Oregon State University | Andrew Hamilton K.G.,Agriculture and Agri Food Canada | Brown A.E.,629 Euclid Avenue
Historical Biology

A new genus, Prisciba, n. gen., and two new species, Prisciba serrata and Prisciba dominicana n. gen., n. sp. (Hemiptera: Cercopoidea: Clastopteridae), are the first froghoppers described from Dominican amber. Diagnostic characters for Prisciba include a distinctly dorsoventrally compressed head bearing a transverse carina in front of the ocelli, a transversely striate pronotum, scutellum longer than wide, forewing bulla positioned on the first anteapical cell and forewing appendix narrow, with a single fold near the apex of the clavus. The genus is postulated to be older than the common ancestor of Clastoptera Germar and Iba Schmidt, the only two extant genera of Clastopterini, and to have survived to the Tertiary only on islands where competition with Clastoptera was low.http://zoobank.org/C7E66772-C2B4-470A-B53B-C6FB2551C9A0. © 2013 Taylor & Francis. Source

Discover hidden collaborations