Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 92. (Budapest 2000)

Roháček, J. ; Papp, L.: Crumomyia microps sp. n. from Austria and notes on other cavernicolous Crumomyia species (Diptera: Sphaeroceridae)

brown, with relatively deep antennái concavities, sparsely microtomentose. Parafacialia brown, glossy blackish brown margined. Frontal lunule pale brown, largely bare and shining. Vibrissal angle reddish to ochreous brown, microtomentose. Gena as high as or slightly higher than longest eye diameter, pale greyish brown microtomentose except for a large bare shining area below eye being distinctly finely furrowed (see Fig. 3). Occiput and postgena dark brown and entirely microtomentose. Cephalic chaetotaxy: all macrosetae relatively thin; no true postverticals (only small postocellar setulae); outer and inner verticals long and subequal to occllars in length; 2 subequal (or posterior slightly longer) closely arising exclinate orbitals; 6-7 fine interfrontals becoming longer anteriorly; numerous additional setulae between orbits and interfrontalia (longest situated at anterior frontal margin) and a series of small exclinate or reclinate setulae on orbits and in front of eye; vibrissa long, subvibrissa about one-third of its length; genal seta well developed, long; peristomal setulae fine and, like postoculars, numerous, the latter covering unarranged most of postgena. Eye strongly reduced (Fig. 3), relatively flat, oval; its longest (oblique) diameter about 1.5 times as long as shortest. Antenna dark brown, with paler scape and 1st flagellomere; pedicel conical and relatively long; 1st flagellomere rounded and laterally somewhat compressed. Arista long, about 4 times as long as antenna, with long cilia. Thorax dark to blackish brown, dorsally completely (including scutellum) though sparsely greyish brown microtomentose. Pleural parts of thorax with microtomentose pattern most resembling that of Crumomyia glabrifrons (MEIGEN, 1830). Propleuron microtomentose only posterodorsally. Mesoplcuron (anepisternum) largely bare and lustrous, only dorsally and posteriorly with microtomentose marginal band (Fig. 1); sternopleuron (katepisternum) bare and glabrous except for small microtomentose areas at posterodorsal corner and posterior margin. Ptcroplcuron (anepimcron), the distinctly protruding metapleuron (laterotergite) and most of hypoplcuron (meron) greyish brown microtomentose. Thoracic chaetotaxy: all macrosetae long but thin; 2 humerais (external very long, internal small); 2 notopleurals (anterior longer than posterior); 1 short supra-alar and 1 very long postalar; 1 long presutural (posthumeral); 3 (1+2) relatively weak dorsocentrals; 4 irregular rows of sparse and fine acrosticha! setulae; 2 very long scutellars (basal only slightly shorter than apical); propleuron finely setulose; mesoplcuron without setae; sternopleuron with 4-5 fine setulae at dorsal margin, more strongly setulose in its ventral third (Fig. 1). Legs relatively long and slender, brown to dark brown, with paler knees or entire tibiae and tarsi. All femora and tibiae finely densely setulose with macrosetae as follows. Fore femur somewhat thickened, with longer but hair-like setae in posteroventral and posterodorsal rows. Mid femur, except the usual preapical setae, with numerous hair-like sinuate setae ventrally. Hind femur with a row of 5-6 dorsal (or anterodorsal) setae and several longer setae also in anteroventral row, the middle of which is usually longest. Fore tibia simply haired, with 1 short dorsopreapical seta and ventroapical brush of dense golden setulae. Mid tibia (Fig. 2), with usual subapical crown of setae, 5-6 anterodorsal (relatively short) setae along its entire length, 1 distinct anteroventral seta below middle, 1 posteroventral seta in apical fourth and ventrally with a number of long fine sinuate hairs. Hind tibia with the usual dorsopreapical seta, 1 long but thin anteroventral seta in apical two-fifths and 2 apical spurs (the anterior short, the ventral strong, curved, about as long as tibial width). Both fore and hind basitarsus with a small backish ventroapical hook well developed, hind basitarsus and 2nd hind tarsal segment with dense ventral brush of golden hairs. Wing slightly to distincly shortened but with normal venation; membrane and veins unicolorous pale brown, only small areas along ta (R-M) and tp (dM-Cu) somewhat darkened. Venation tending to some variation due to wing length reduction (one male with ta lacking in one wing, another male with ta doubled in one wing, apical portion of M often shortened) but discal cell always long and narrow, with ta situated in its basal fourth to third. Wing measurements: length 2.58-3.62 mm, width 0.89-1.27 mm, C-index (Cs2 : Cs3) = 4.10-5.42, ta-tp : tp (R-M\dM-Cu : dM-Cu) = 3.70-4.60. Haltere dirty yellow, knob usually darker than stem.