REVISION OF SPECIES OF STILOBEZZIA KIEFFER 17 



nent sclerotized ring that forms a stout bridge between the medianglar 

 processes (Brevicostalis Group) brevicostalis, new species 



2. Abdominal terga from II caudad pale excepting lateral L-shaped brown 



markings; all femora pale to tips; male genitalia with basistyle dark brown 

 on distal third, dististyle nearly as long as basistyle, stout and only slightly 

 narrowed toward bluntly pointed distal tip; aedeagal tips abruptly con- 

 stricted caudad and bent ventrocephalad in a slender, curved point. 



clarifemorata, new species 

 Not as above 3 



3. Abdominal terga from II caudad with broad dark brown bands, broken only 



in middle; fore and mid femora pale, hind femur either brownish from near 

 base, with color intensely dark brown on distal fifth, or totally pale except 



dark brown on distal fifth, or totally pale except dark apices 4 



Abdominal tergum II mostly pale, with dark brown marks on extreme sides 

 forming longitudinal bars; posterior terga covered by broad dark brown 

 bands, broken in middle and sometimes slightly reduced in front; fore and 

 mid femora pale; hind femur mostly pale, with one or both ends broadly 

 dark 5 



4. Hind femur brownish from near base, with color intensely dark brown on 



distal fifth; male genitalia with ninth sternum deeply excavated caudad, 

 mediangular processes and the sclerotized bar between them moderately 

 developed; aedeagal sclerites with foot-shaped caudomesal tips having 

 caudally directed portion rather short; parameres with strongly spiculose, 

 pointed distal expansion having stout neck .... fuscipes, new species 

 Hind femur pale, extreme apex dark; male genitalia with ninth sternum 

 slightly depressed caudad; mediangular processes and the sclerotized bar 

 between them strongly prominent; aedeagal sclerites with foot-shaped 

 caudomesal tips having caudally directed portion rather long; parameres 

 each with feebly spiculose, pointed distal expansion having quite narrow 

 neck fusciterga, new species 



5. Medium-size species; halter pale except the brownish neck; hind femur pale 



with base and tip broadly dark; male genitalia with basistyle quite brownish; 

 mediangular processes short but sclerotized bridge between them very 

 prominent; dististyle rather short and swollen in middle with thin hooked 

 tip; aedeagal sclerites and parameres similar to those of fusciterga, but 

 spicules on aedeagal tips relatively stronger with neck less thin and swelling 

 at basal third of main body more prominent . . punctifemorata, new species 

 Small species; halter dark at neck to basal half of knob; hind femur totally 

 pale except extreme apex dark; male genitalia with basistyle feebly brownish ; 

 dististyle quite long, stout at base and tapering to slightly hooked tip; 

 mediangular processes and the sclerotized bridge between them feeble; 

 aedeagal sclerites small, forming a low arch, their caudal tips drawn into 

 minute hooks; parameres each having main body quite stout and columnar, 

 slightly expanded distad with distinct transverse rugosity on mesal margin 

 of expansion, tip drawn out in a sharp ventrolateral point. 



minuta, new species 



Africana Group 



Diagnostic characters (fig. 45, punctifemorata, new species). — As 

 in the subgenus with the following additional distinctive features: 

 Eyes moderately separated; vertex with hairs arranged in pairs, 



