4 STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 679 
Head (Figs. 1-2): Eyes haired. Length of frons slightly longer than length of face. 
Frons at its narrowest point 0.73 [0.65] times as wide as an eye in dorsal view. Inter- 
frontal area at midpoint slightly narrower than corresponding parafrontal area. In- 
ner vertical seta 0.6 of eye-height; outer vertical seta strong, about 0.6 times as long 
as inner vertical seta. Ocellar setae strong and proclinate. A row of 11-13 frontal se- 
tae descending to level of apex of pedicel; 2 reclinate inner orbital setae, posterior se- 
ta smaller. Parafrontal outside the frontal setae with numerous long hairs, at least as 
long as !/3 the length of the strong frontal setae; no hairs [one hair] descending be- 
low level of lowest frontal seta. Parafacial strongly narrowing below, at its narrow- 
est point approximately !/4 as wide as flagellomere 1, bare. Facial ridge with 6-7 
small setae and some additional setulae in its lower !/4. Back of head covered with 
white hairs, with numerous small black setae directly behind the postocular row. 
Antenna black; flagellomere 1 evenly curved at apex and at inner margin, 2.1 times as 
long as maximum width, 2.0 [2.1] times as long as pedicel. Sclerotized part of pre- 
mentum approximately 2 times as long as its diameter. Palpus widened and flattened 
apically, slightly longer than flagellomere 1, with dense and short hairs. 
Thorax: Prosternum hairy, proepisternum bare. Right postpronotum with 3 basal 
setae arranged in an obtuse triangle, and 2 smaller anterior setae; left postpronotum 
with 4 basal setae (one additional outer seta) also arranged in an obtuse triangle, and 
2 smaller anterior setae. Scutum with 3+3 pairs of acrostichal setae, 3+4 pairs of dor- 
socentral setae and O[-1] + 3 pairs of intra-alar setae. First postsutural supra-alar se- 
ta strong. Katepisternum with 3 setae. Katepimeron with some hairs on anterior half. 
Anepimeral seta strong, as long as the smallest katepisternal seta. Scutellum with 
strong basal, lateral and subapical setae and with strong crossed horizontal apical se- 
tae; lateral setae subequal with the basal setae. Dorsal surface of scutellum with the 
normal pair of discal setae. 
Wing: Second costal sector bare ventrally. Costal spine weakly differentiated. Vein 
R445 with 1-2 small setae basally. Fourth costal section 1.6 [1.4] times as long as sixth 
costal section. Bend of M without an appendage, apical section of M slightly con- 
cave. Section of M between crossvein dm-cu and bend 0.88 [0.74] times the distance 
between bend of M and margin of wing. Last section of CuA, shorter than crossvein 
dm-cu. 
Legs: Claws and pulvilli as long as fifth tarsal segment. Fore tibia with 2 posterior 
setae and a proximal row of 6-7 anterodorsal setae. Mid tibia with 3 anterodorsal se- 
tae, 2-3 posterior setae; one strong and an additional much weaker ventral seta. Hind 
tibia with an irregular row of 4-5 strong anterodorsal setae, and some much weaker 
setulae; 3-4 posterodorsal setae, 2-3 anteroventral setae and 2 dorsal preapical setae; 
preapical posteroventral seta missing. Hind coxa bare on posterior margin. 
Abdomen: Mid-dorsal depression on syntergite 1+2 extending back to hind mar- 
gin of that segment. Tergite 2 with 1(2) [2] pairs and tergite 3 with 2 pairs of median 
marginal setae [in male paratype almost a complete row of marginal setae]; tergites 4 
and 5 each with a complete row of marginal setae. Tergite 3 with 6 (8) weak and scat- 
tered median discal setae; tergite 4 with an irregular row of 8 (10) discal setae, dor- 
solaterally with some additional suberect hairs. Tergite 5 with an irregular row of 
rather strong discal setae. Tergites 4 and 5 ventrally without patches of recumbent 
hairs. 
Genitalia (Figs. 3-6): Fifth sternite 1.5 times as wide as long, posterior lobe with 
dense and rather strong hairs; sixth tergite wide and narrow, entire and without 
