Description published
Zootaxa 1037: 37–48 (2005). A review of Panurgus (Pachycephalopanurgus), with the description of a new species from Spain
Location of type
OberÖsterreichisches Landesmuseum (Linz, Austria)
Description
Diagnosis. Morphologically similar to P. canescens. Females: slightly smaller than Panurgus canescens (5.3 mm). Integument dark blackish. Posterior third of mesonotum and scutellum finely and densely punctured. T1 coarsely sculptured, integument dull, roughened. Females of P.canescens have generally brownish integument and a more finely punctured scutellum and T1. Males: Clypeus with a deep subtrapezoidal median emargination as in P.canescens and P.calceatus; the edges spinose ventrally. T3 ventro-lateral margins each with a large subtriangular tooth. Penis valve with a deep baso-lateral groove on outer surface.
Description.
Female. Head. Clypeus deeply and sparsely punctured, the punctures separated by at least one diameter. Labral lamella smooth and shiny, subtrapezoidal, longer than wide. Glossa shorter than the distance between clypeal apex and median ocellus. Galea densely shagreened. Maxillary palpus shorter than the first labial palpal segment. Gena finely and sparsely punctured; integument smooth and shiny between punctures. Frons densely and finely punctured; the cuticle weakly shagreened between punctures, shiny. Scape with some large, deep and widely spaced punctures. Flagellar annuli dark, somewhat lighter apico-ventrally on the terminal segments (from A7). Pilosity creamy white, dense and abundant on the whole face.
Mesosoma. Mesonotum densely shagreened; the posterior third densely and finely punctured, the anterior part with large and sparse punctures. Scutellum finely and densely punctured like the posterior part of the mesonotum (Fig. 2a). Nota with sparse pilosity, denser and more abundant on scutellum and also on the mesopleuron. Propodeum lightly shagreened, very smooth and shiny; dorsal area weakly wrinkled. Legs with abundant creamy white pilosity. Wing venation dark brownish.
Metasoma.T1 densely shagreened (Fig. 2b); T2–3 with weaker but noticable shagreening; T4– 5 more weakly shagreened, but with stronger and deeper punctures. Apical impressed areas of terga thin, translucent, yellowish. Sterna shagreened, the apex punctured. Metasomal pilosity weakly developed, mainly restricted to the latero-apical part and to the apical margin of S5 and S6; more abundant on T4 and following segments. Anal fringe creamy white. Pygidial plate with a strong median carina.
Male. Head. Head strongly enlarged (WidthHead:WidthPronotum = 1.2:1). Clypeus sparsely punctured, sparsest medially; distal margin deeply emarginate medially, edges of the emargination spinose. Labral lamella weak, subtriangular. Mouthparts as in females. Gena, vertex and frons very smooth, with some sparse and fine punctures; integument strongly shiny. Frontal carina short, convex, not reaching the epistomal sulcus (Fig. 2c). Antenna dark; the apical half of flagellum reddish beneath. Head pilosity sparse, whitish.
Mesosoma. Notal and pleural integument smooth with some strong but sparse punctures. Pilosity very sparse, whitish. Wings as in females. Legs with very few hairs, whitish, as on thorax.
Metasoma. Terga dark, finely shagreened (T1–3); apical impressed areas thin, yellowish. T3 with a pair of well-developed, ventro-lateral subtriangular teeth (Fig. 2d). Pilosity whitish, particularly sparse on metasoma. S7 with well-differentiated apical processes, concave ventrally, diverging distally. S8 with terminal plate sub-quadrangular (Fig. 2f). Genitalia. Gonostylus strongly sigmoid, diverging basally; the apex elliptically enlarged; secondary process long and thin. Penis valves large; the outer surface with a strong groove, the valves appearing notched basally in dorsal view (Fig. 2e).