BASED ON A STUDY OP THE MALE GENITAL ARMATURE. 15 



Small and slenderly built. Abdomen pale, with distinct transvei'se blackish 

 bauds ; median pale stripe very distinct. Legs with the exception of the 

 hind tarsi and the tips of the front and middle ones, pale yellowish. 

 Inferior claspers of male with a very short stem to the foot-like terminal 

 process ; superior claspers as in 6. 8. tachinoides, Westw., p. 25. 



Small and stoutly built. Abdomen as in 6, but with the usual transverse 

 dark bands more evident. Thorax dusky grey with four greyish-black, 

 triangular, blotches. Legs almost imiformly infuscated. Superior claspers 

 of male curved and terminating in a claw-like point. 



9. fuitcipes, Newst., p. 26. 



Abdomen almost tmicolorous, but darkening gradually towards the margins 

 and posteriorly. Superior claspers of male straight and gradually 

 narrowed, truncate and spinose at the apex. 10. paUicera, Big., p. 27. 

 Group III. (Morsitans Group). Tips of hind tarsi only dai-k or black (A) ; or 

 with the tips of all the tarsi dark or black (B). Length 7|-10 mm. 



A. Both sexes with the front and middle tarsi yellow. Third segment of 



antennae long and narrow, apex pointed. Superior claspers in male 

 very similar to those of 12, with a large flange-like projection 

 internally, the breadth of which is greater than the width of the stem 

 of the clasper at the point of its origin. 



11. pallidipes, Aust., p. 30. 



B. Tips of all the tarsi dark or black. 



Abdomen often with a large dusky red-brown area ; transverse bands 

 on third segment may be either widely separated and faintly indicated 

 medially, or strongly pronounced and narrowly separated. Superior 

 claspers in male terminating in a large tooth-like process on outer 

 angles, the internal flange-like projection much narrower than stem 

 of clasper, and not produced distally into a median lobe. 



12. hmgipalpis, Wied., p. 29. 

 Abdomen with the median stripe usually much M'ider on the third 

 segment than on the fifth. Median lobes of the superior claspers in 

 male converging distally ; outer angle of claspers without any tooth- 

 like process. 1 .3. viorsitans, Westw., p. 32. 

 Abdomen with the transverse bands sharply defined medially, median 

 stripe usually of uniform width on the third fourth and fifth segment. 

 Median lobes of the superior claspers parallel ; outer angle of 

 claspers without any tooth-like process. 



14. nvh morsitans, Newst., p. 33. 

 Grlossina fusca, Walker. 



Genital armature of the male (figs. 3 and 4). Superior claspers (.<p) very 

 widely separated (dorso-ventral view, fig. 4) ; suddenly rounded apically on the 

 outer lateral margin, the inner lateral margin produced and forming a stout 

 tooth-like projection. When moimted so that an oblique lateral view is obtained 

 the tips sometimes appear to be bluntly bidentate (fig. 3) ; but the true form of 

 these appendages is that which is shown in fig. 4. Each clasper is clothed 

 dorsally with fine pubescent hairs, and also with a number of very long bristles. 

 The editum, or lappet-like extension of the body wall, is broad and bears a 



