1869.] 



269 



ANGLICUS. 



c? ? . Smaller size, averaging ^ 3 J lin., 

 alar. 6^ j ? 3J, alar. 6|. 



Transverse vein about 1^ times as long 

 as the baaal portion of the cubital 

 vein. 



Cubital vein rather wavy. 



Indistinct portion of cubital vein before 

 the fork longer. 



Edge of the alulae blackish. 



Sub-costal vein with several bristles on 

 it, and costal pubescence stronger. 



Knob of the halteres narrower. 



Joints of the antennae more distinct. 



3. Pubescence on all the abdomen 

 blackish. 



Pubescence on the under-side of the 

 thorax blackish. 



Hairs on the scutellum all black. 



Belly duller, rather hairy. 



Legs stouter, and all over more thickly 

 beset with stronger bristles or hairs, 

 which are all black ; the hinder tro- 

 chanters are more even at their edge, 

 the femora are rougher, hind pair 

 sHghtly more clavate,the middle pair 

 of legs is especially more thickly 

 beset with bristles; the tarsi are 

 shorter and stouter, and the close 

 short pubescence beneath them is 

 blackish-grey. 



Wings not so decidedly milky-white. 



? . Hairs on the abdomen all black, ex- 

 cept on the sides of the basal seg- 

 ment, where they are pale. 



Few hairs on thorax and tip of scutel- 

 lum stronger and darker. 



Pubescence about the head shorter and 

 blacker. 



Front rough and dull. 



Legs rather more bristly; tarsi thicker 

 and shorter. 



Wings with darker uniform tinge. 



nOETTJLANUS. 



<J ? . Larger size, averaging (J 4 lin., alar. 

 1\ ; ? 3|, alar. 8^. 



Transverse vein about J the length of 

 the basal portion of the cubital vein. 



Cubital vein nearly straight. 



Edge of the alulae not very dark. 

 Sub-costal vein bare or nearly so. 



$ . Pubescence at the base and sides of 

 the abdomen whitish. 



Pubescence on the under-side of the 

 thorax pale. 



Hairs mostly pale on the scutellum. 



Belly shining, almost bare. 



Legs thinner, and all over more sparingly 

 beset with bristles and hairs, which 

 are evidently pale on the anterior fe- 

 mora ; the hind trochanters are some- 

 what notched, the femora are more 

 shining ; the middle pair of legs is 

 very sparingly clothed with bristles ; 

 the tarsi are longer and thinner, and 

 the close short pubescence beneath 

 them is whitish-grey. 



Wings milky -white, except near the costa. 

 ? . Hairs on the abdomen all pale. 



Few hairs on thorax and tip of scutellum 

 weaker and paler. 



Pubescence about the head partly pale. 



Front smooth and shining. 



Legs slightly less bristly ; tarsi thinner 

 and longer. 



Wings with the tip evidently paler. 



