Sphaerophoria. 347 



and more or less emarginate in front and behind ; it is likewise much 



sloped off at the sides, and isolated or reaching the side margin in- 



distinctly ; the band on fourth segment is somewhat similar but still 



nearer the front margin, and it is often a little produced in front and 



behind on each side of the emargination, in rare cases interrupted; 



the fourth segment has an indistinet orange hind margin; the fifth 



segment is yellow, it has a triangular, black spot at each front corner, 



and in the middle a narrow, black line, stretching backwards and 



here connected with a transverse, black spot on each side, thus 



forming a black anchor, which does not reach the hind margin ; (it will be 



seen that the arrangement is principally the same as in scripta, the 



difference is caused by the black spots being smaller and the middle 



line connected with the hinder spots); sometimes the flukes of the 



anchor are connected with the spots at the front corners (answering 



to the presence of the V-shaped figure in scripta). The whole side 



margin of abdomen is narrowly and more or less distinctly yellow. 



The hairs foUow to some degree the ground colour, but are black 



along the dorsum and at apex; at the sides they are all yellow, and 



long at the base, sometimes they are black on the hinder part. Venter 



chiefly yellowish, with longish, pale hairs. Genitalia large, yellow, 



eighth segment with two black spots, 



one above the other, ninth segment 



with two blackish, transverse spots 



at the base; the ninth segment, the 



hypopygium, is shorter than in scriptet, 



almost globular; the apical append- 



ages or lamellæ more distinctly bi- 



furcate than in scripta, the lower 



branch much narrower, the upper 



shorter and less chagreened, with n- 101 o ^z, ^ • .^ u 



® ' Fig. 131. S.mewmasfn d^; hypopygium 



tufts of yellow hairs ; the lower ^nd eighth segment (8). 



branches are exised towards the ends 



and somewhat fitting into each other. Legs yellow or dark yellow, 

 the tarsi more or less darkened to blackish, and sometimes the coxæ 

 darkened; the hairs on femora all or almost all black, on the hind 

 femora a bare channel below as in scripta but less pronounced, and 

 there are no stubby or crowded bristles, the hairs being uniformly 

 distributed and of the same length and strength, and there is no bare 

 space at the base; the hind coxæ have long, yellow and black hairs; 

 the tibiæ likewise black-haired, the front tibiæ with more or fewer 

 yellow hairs. Wings nearjy hyaline to somewhat brownish tinged. 

 Squamulæ pale yellow to yellow. Balteres yellow. 



