244 [November, 



{anfea, p. 146) I have already referred to the insect representino; 

 pulicaria in Meigen's collection at Paris, which was critically examined 

 by Mr. Collin, and to Zettcrstedt's opinion that it was not the same 

 as Fallen's pulicaria. Zetterstedt's short diagnosis would apply 

 equally to cither of our species, siihpleuralis or the one to which is 

 here given the name of indicaria. Eat since Meigen's insect is cer- 

 tainly suhpleuralis or one of the allied species with bristly pleurae, the 

 natural conclusion is that the other must be the true pulicaria. The 

 male comes very near to male of suhfumida, fr.im which its greater 

 size and larger supra-antennal bristles, especially the under pair, serve 

 best to distinguish it ; whilst the female bears an equally close resem- 

 blance to the female of rnfipcs, the distinctions being its usually 

 smaller size, yellower legs, longer 2nd costal division, and the much 

 bolder angle at which the 1st thin vein leaves. From the female 

 of derasa it may be known by the absence of the long hairs un- 

 derneath the hind femora, and by the great differences in the costal 

 divisions. The rare yellow form looks at first sight not unlike lutea 

 or still more scufellaris, but here again the large supra-antennal 

 bristles and the absence of tibial bristles are sufficient to prevent 

 a mistake. It appears to be widely distributed ; I take it here, 

 but not very commonly, and I have also seen it from the North of 

 Scotland. 



Subtumida. — A very common autumnal species ; found also in 

 smaller numbers in the spring. The gravid female I have learnt to 

 recognise by its conspicuously pallid belly. 



Nudiventris. — The name has not perhaps been very happily chosen, 

 for the short hairs on the abdomen are better developed than usual, 

 but the male is so like rufipes in its slenderness of form, that I had 

 that species in mind when naming it, and wished to contrast the great 

 difference in the clothing of the abdomen in the two species. This 

 again as founded upon the male is unquestionably a good species, but 

 the females present no very definite characters, and in referring them 

 lo nudivenfris I have gone chiefly upon the negative ground of exclu- 

 sion. A scarce species. Five only of each sex have been picked up, 

 one female in Cusop Dingle 12/9/05, the others in my home woods in 

 the months of May and June of different years. 



(To he continued). 



