IQ2 



MORPHOLOGY AND TAXONOMY OF ADULT MALES 



Mesothorax : Prescutum 52-64 (58) (j. long and 1 19-137 (131)0. wide, the ratio being 1 : 1-9- 

 2-6(2-3). Scutum 24-40 (32) (x long, i.e. the ratio lengths of prescutum to scutum 1-3-2-6 (1 -8) : 1. 

 Scutellum 40-58 (52) y. long and 150-165 (156)^ wide, the ratio 1 : 2-7-3-8 (3-0), and its length 

 to the length of scutum 1-2-2-1 (i-6) : 1. Basisternum 101-122 (iio)u. long and 168-183 

 (177)^ wide. Mesothoracic spiracle 18-21 (2o)[x wide at opening, with a 49-55 (52)fz long 

 supporting bar. Mesothoracic setae on each side : Prescutal seta 0-1 (0-3) ; scutal setae 2-6 

 (3'3) '• scutellar setae 1-3 (i-6). Tegular setae 0-1 (0-3). Postmesostigmatal and basisternal 

 setae absent. Metathoracic setae on each side : Metatergal setae 6-14 (8-6) ; one anterior 

 metasternal seta always present ; metapleural and posterior metasternal setae absent. 



Wings : Greatly reduced ; 112-336 (168) u. long and 42-98 (56) \i wide ; axillary sclerites 

 small ; additional sclerites and alar lobe absent ; alar seta 0-1 (o-6). Hamulohalterae atrophied, 

 27-49 (37) pi long and 12-15 (14) u. wide. 



Legs : Short and stout ; the fore and the middle legs subequal in length and the hind legs 

 longest ; the ratio length of the latter to the total length of body 1 : 2-1-2-3 ( 2- 2). Coxa and 

 trochanter about 64 and 40^ wide respectively ; the latter with a differentiated long apical seta. 

 Femur about 490. wide ; that of the middle leg shortest and those of the fore and hind legs 

 subequal ; the ratio width to length of the hind femur 1 : 3-3-3-5 (3-4). Tibia about 310. 

 wide ; with 2 apical spurs ; in fore leg the ratio lengths of femur to tibia 1 : 1-17-1-24 (1-2). 

 Tarsus about 24^ wide ; tarsal digitules apically knobbed, about 3751 long. Ungual digitules 

 also apically knobbed. The following table shows the lengths of the leg segments (in microns) 

 and the number of setae on each : 







Fore leg 



Middle leg 



Hind leg 



Coxa 



length 

 h.s. 



49-55 (52) 

 5-9 (7-4) 



49-55 (52) 

 5-io (8-2) 



52-58 (55) 

 6-1 1 (8-5) 



Trochanter 



length 

 h.s. 



64-67 (66) 

 3-4 (3-5) 



64-70 (67) 

 3-4 (3-4) 



67-73 (70) 

 3-5 (3-9) 



Femur 



length 

 h.s. 



159-168 (165) 



8-I5 (I2-I) 



153-159 (156) 

 6-12 (9-5) 



162-171 (168) 



7-13 (II-2) 



Tibia 



length 

 h.s. 



189-204 (198) 

 15-19 (16-8) 



192-207 (201) 

 13-19 (17-1) 



204-223 (217) 

 I3-20 (17-6) 



200^- 



Fig. 51. Gossyparia salicicola Borchsenius, lateral view. 



