629 Euclid Avenue

Berkeley, CA, United States

629 Euclid Avenue

Berkeley, CA, United States
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Rasnitsyn A.P.,Natural History Museum in London | Poinar G.,Oregon State University | Brown A.E.,629 Euclid Avenue
Cretaceous Research | Year: 2017

A strange wingless female parasitic wasp from mid-Cretaceous Burmese amber is described as Aptenoperissus burmanicus sp. et gen. nov. in the new family Aptenoperissidae (Hymenoptera, Ceraphronoidea). Diagnostic characters of the female Aptenoperissus burmanicus sp. et gen. nov. include its wingless, streamlined and heavily sclerotized body lacking any apparent trace of a wasp waist, and geniculate antenna composed of a long, thin, stick-like scape, standard pedicel and 22 uniform flagellomeres. Also the body has 9 externally visible segments with no evidence of segment fusion implying the presence of a completely hidden segment. All tibiae have paired spurs and the hind femora are saltatory and incrassate. The double fore-tibial spur combined with unquestionable diagnostic features of Apocrita (primarily an internalized needle-like thin and acute ovipositor) suggest placement within the superfamily Ceraphronoidea s.str. with the Maimetshidae as a sister group of the crown Ceraphronoidea, composed of the Ceraphronidae, Megaspilidae, Stigmaphronidae, and Radiophronidae. The fossil is hypothesized to live semicryptically on the forest floor or tree trunk and to parasitize immature holometabolous insects. Diagnostic features of a respective male are suggested to test the hypothesized position of the new taxon. © 2016 Elsevier Ltd

Poinar G.,Oregon State University | Brown A.,629 Euclid Avenue
Systematic Parasitology | Year: 2012

The first fossil streblid, Enischnomyia stegosoma n. g., n. sp. (Diptera: Hippoboscoidea: Streblidae), is described from Dominican amber. Placed in the subfamily Nycterophiliinae Wenzel, 1966, which includes two New World extant genera, Nycterophilia Ferris, 1916 and Phalconomus Wenzel, 1984 (=Phalcophila Wenzel, 1976), the male specimen of E. stegosoma is characterised by the following features: a laterally compressed body, well-developed two-segmented antennae with the scape fused with the head, a tubular pedicel with an annulated basal portion and swollen apical portion bearing setae and bristles, a distinct flagellum with a dorsal boss bearing microsetae and a subterminal pectinate arista, a large tubular labium (proboscis) with the tip held upwards, eyes reduced to three facets, an expanded and flattened profemur, an anteriorly curved protarsus, and a well-developed wing with an entire distal margin. The possession of wings separates E. stegosoma from the species of Phalconomus, and the wing outline and venation, as well as the structure of the antennae and palps, distinguish it from species of Nycterophilia. © 2011 Springer Science+Business Media B.V.

Poinar Jr. G.,Oregon State University | Kritsky G.,College of Mount St. Joseph | Brown A.,629 Euclid Avenue
Historical Biology | Year: 2012

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.

Poinar Jr. G.O.,Oregon State University | Andrew Hamilton K.G.,Agriculture and Agri Food Canada | Brown A.E.,629 Euclid Avenue
Historical Biology | Year: 2014

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.

Poinar G.,Oregon State University | Brown A.E.,629 Euclid Avenue
Cretaceous Research | Year: 2016

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.

Poinar G.,Oregon State University | Brown A.E.,629 Euclid Avenue | Legalov A.A.,Russian Academy of Sciences
Fossil Record | Year: 2016

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.

Poinar Jr. G.,Oregon State University | Brown A.E.,629 Euclid Avenue
Historical Biology | Year: 2011

A broad-nosed weevil, Promecops tumidirostris n. sp. (Eudiagogini: Curculionidae), and a false ladybird beetle, Nilio dominicana n. sp. (Nilionini: Nilionidae), are described fromDominican amber. P. tumidirostris can be distinguished fromextant species by the greatly swollen apical portion of its rostrum, large eyes almost meeting on top of its head and a V-shaped suture separating the first and second abdominal sternites. N. dominicana differs fromextant species by its small size and 18 elytral striae with small interstrial punctures. Neither tribe is represented in Hispaniola today, supporting earlier studies showing a greater biodiversity in the region during the mid-Tertiary than at present. © 2011 Taylor & Francis.

Poinar Jr. G.,Oregon State University | Legalov A.A.,Russian Academy of Sciences | Brown A.E.,629 Euclid Avenue
Palaeontologia Electronica | Year: 2013

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.

New genera and species of jumping ground bugs (Hemiptera: Schizopteridae) are described in Dominican and Burmese amber. In Dominican amber are described: Hypselosoma dominicana Poinar & Brown sp. n., Schizoptera dominicana Poinar sp. n. and Schizoptera hispaniolae Poinar sp. n. In Burmese amber are described: Lumatibialis burmitis Poinar gen. et sp. n. and Hexaphlebia burmanica Poinar gen. et sp. n. A triungulin attached to the dorsum of the abdomen of Lumatibialis burmitis is described as Microentomus epibatus Poinar gen. et sp. n. in the family Meloidae (Coleoptera). This specimen represents the oldest known triungulin and the first fossil phoretic association of a triungulin and hemipteran. © 2015 Société entomologique de France.

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