Orthoptera Species File (Version 5.0/5.0)
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Supplementary information for


Description

Content:  Male: Total body length measured from fastigium verticis to abdominal apex 5.97 mm (Figs 1–2). Head capsule (length 1.26 mm) compressed dorsoventrally; vertex with distinct posteriorly bilobed colour spot (Fig. 4); fastigium verticis broadly rounded; median ocellus situated dorsally, between antennal torulae; compound eyes large, interocular distance 0.64 mm; antennae filiform, scape approximately four times larger than pedicel; maxillary palpi long with apical palpomere triangular and distally concave (see Fig. 2). Pronotum (length 1.02 mm) wider than long, with lateral and marginal areas covered with long setae; disc largely dark with a pale median line not reaching anterior margin; posterior margin sinuous and slightly wider than anterior margin; marginal areas well-demarcated with prominent carinae (Fig. 4). Thoracic sternites polygonal, plate-like and densely pilose, increasing in size posteriorly (Fig. 2). Terminalia obscured dorsally by hind wings (see Fig. 1); subgenital plate pale, broadly rounded with an indistinct median ridge flanked by shallow depressions and the posterior margin shallowly emarginate (Fig. 8); cerci densely setose; epiphallus triangular with pointed apex directed dorsally; ectoparameres lobate. Tegmen 3.78 mm long with distinct coloration and stridulatory apparatus only partially reduced (Fig. 3); harp elongate, without multiple harp veins; mirror small, lacking dividing vein; lateral field dark with veins running parallel to the costal margin; dorsal field with six crossveins in the basalmost part of the mediocubital area with dark patches running along the stridulatory and harp veins and merging with a large dark spot encompassing most of the proximal cells in the cubital system; apical field entirely dark (Fig. 3). Hind wing long and tightly folded, extending well beyond abdominal apex, with dark remigium and hyaline anal lobe. Prothoracic leg short and robust with a single dark band on the distal half of the profemur and ovoid tympana on both sides of the protibia (Fig. 7). Mesothoracic leg longer than prothoracic leg; mesofemur with single dark band and a prominent ventral sulcus distally; mesotibiae with two dark bands. Metafemur (length 3.54 mm) with a dense covering of setae and bearing two dark spots; one situated just distad of femoral midlength and the second situated apically, encompassing the genicula (Fig. 5). Metatibia (length 2.61 mm) approximately 25% shorter than metafemur and quadrate in cross section, with two small dark spots situated basally; dorsal longitudinal carinae armed with rows of small denticles interspersed distally with stout subapical spurs (3 inner and 3 outer); metatibial apex bearing 2 inner and 3 outer apical spurs (Figs 5–6); median outer apical spur twice as long as the other outer spurs. Metabasitarsus elongate with rows of sharp denticles along the dorsal longitudinal carinae and two apical spurs (1 inner and 1 outer); second metatarsomere much reduced; third metatarsomere long, slender and slightly curved (Fig. 5).

Source of information:  Heads & Penney. 2012. In Heads; Penney & D.I. Green. A new fossil cricket of the genus Proanaxipha in Miocene amber from the Dominican Republic (Orthoptera, Gryllidae, Pentacentrinae). ZooKeys. 229:113-116

Date last modified:  Thursday, October 18, 2012
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