Leg 



Coxa 



Trochanter 



Femur 



I 



68-76 



92-106 



198-222 





(7i) 



(100) 



(211) 



II 



72-84 



92-106 



178-207 





(81) 



(99) 



(i93) 



III 



80-91 



95-116 



190-218 





(85) 



(104) 



(204) 



66 MORPHOLOGY AND TAXONOMY OF ADULT MALES 



though interrupted in middle ; with small wing process. Episternum with anterior margin net 

 ridge-like ; vestigial precoxal ridge present ; epimeron posteriorly directed. Metathoracic 

 spiracle similar to mesothoracic one. Dorsospiracular setae absent. Postmetaspiracnlar setae ? 

 2-6 (average 3-5) f.s. and 1-7 (average 4) h.s. Metasternum represented by a weak, transverse 

 plate. Anterior metasternal setae : 1-3 (average 1-9) medially situated h.s. ; posterior meta- 

 sternal setae : occasionally one h.s. 



Wings hyaline ; long (length 1357-1463, average 1427 ja) and of medium width (530-615, 

 average 578 \i), ratio width to length being 1 : 2-36-2-56 (average 2-46) ; alar lobe present ; 

 alar setae : one or occasionally two h.s. on each wing. Halteres well developed, 104-120 (average 

 111) [i long and 20-28 (average 24) [i. wide, each with one apically hooked seta which is about 

 64 n long. 



Legs moderately long, and slender, with middle or fore pairs shortest and hind pair longest ; 

 ratio length of hind leg to body length is 1 : 1-68-1-73 (average 1-71). Length of segments 

 (in |j.) : 



Tibia Tarsus Claw Total 



359-422 1 10-128 23-26 903-1013 



(39i) (119) (24) (964) 



331-414 II5-I33 24-27 859-1010 



(377) (124) (25) (947) 



361-426 1 12-135 24-27 906-1053 



(393) (125) (25) (985) 



Coxae each with 13-25 f.s. and 13-19 h.s. ; fore coxa with 2-5 (average 3-8) pointed coxal 

 bristles, the latter about \ as long as the segment ; apical seta about \ as long as trochanter. 

 Trochanters 26-30 [j. wide ; with 6 oval sensilla, 10-16 f.s. and 7-10 h.s., the latter including 2 

 minute setae near basal ridge, one small seta on outer margin and a long apical seta which, on 

 the fore trochanter, is 1 -4-1 -7 (average 1 5) times as long as width of trochanter. Femora of 

 medium width (38-42 \l), the ratio width to length of hind femur being 1 : 4-7-5-4 (average 

 5-1) ; each with 22-34 Is - an d 13-26 h.s. Tibiae 19-25 \x wide, the ratio width to length of 

 hind tibia being 1 : 16-7-20-0 (average 18-4) ; each with 79-102 setae, of which 30-48 are h.s. 

 and 44-60 f.s., the latter about as long as width of tibia ; apical spur about the same size on all 

 tibiae. Tarsi 18-21 (average 19) \i wide, hind tarsus 5-7-7-0 (average 6-3) times longer than 

 wide ; with 9-15 f.s. and 19-32 h.s. ; tarsal digitules subequal, about as long as claw. Claws 

 of medium length, somewhat longer than width of tarsus ; slightly curved, with a small denticle 

 near tip ; ungual digitules subequal, about as long as claw. 



Abdomen 551-721 (average 613) \l long and 371-477 (average 411) jjl wide. 



Segments I-VII : tergites represented by a small sclerite on each side on anterior margin of 

 segments II— III and a weak transverse plate on VII ; sternites present on all segments, 

 represented by a weak transverse plate on anterior and posterior segments and a sclerite on 

 each side on intermediate segments. Caudal extension of segment VII small, somewhat 

 pointed, not sclerotized. Dorsal setae : h.s. only, usually one on each side on segments I, 

 and III-VII ; 1-7 (average 4-1) circular pores occur near each seta on segment I. Pleural setae 

 consisting of h.s. only ; dorsopleural setae : 2-5 (average 3-3), 3-5 (average 4-1), 3-6 (average 

 4-6) and 3-5 (average 4-3) on segments III-VI respectively ; ventroplenral setae absent or 

 incorporated into the dorsopleural group. Segment VII with 5-8 (average 6) h.s., of which the 

 posterior ones are usually longer than the rest. Ventral setae : h.s. only, usually one on each 

 side on III-IV, and 4 on each of segments V— VII. 



Segment VIII with transverse tergite and sternite ; caudal extension forming a small, simple 

 lobe ; glandular pouch with 2 long setae, each with a small apical knob, the protruding part of 

 these setae 3-4 times as long as section within pouch. No IXth tergite observed. Ante-anal 

 setae : 2 long and occasionally one small h.s. ; 9-17 (average 14) circular pores present anterior 

 to ante-anal setae. Posterior margin with 3-4 (average 3-3) h.s. on each side. 



Genital segment. Penial sheath short, about ^ total body length (ratio 1 : 5-20-6-12, average 

 5-75), 285-323 (average 304) \l long and 42-49 (average 46) \x wide ; lateral sclerotizations 





