20 DINEURA SIMULANS. 



May and June, and a second time in September, 

 forming a great, longish, deep brown spot in either 

 corner of the leaf. It is 2 3'" in length, bare, of 

 almost uniform breadth, with flat ventral surface, and 

 gently arched back. The colour of the body is 

 yellowish, with a green dorsal canal; head flat, 

 reddish-yellow, shining ; the mouth and eye-spots 

 brown. The thoracic legs are clear, bright yellow ; 

 the ventral legs are short and nipple-like ; the sides 

 of abdomen are indented with notched sinuations. 

 Brischke (1. c.) describes the thoracic legs as brownish, 

 and says there is between the legs on the belly a light 

 brownish spot. There are twenty legs, but the 

 ventral are but slightly developed, and the anal pair 

 still less. At the last moult it becomes yellowish. 

 Three larvse may be found in a single leaf, and if that 

 is not sufficient they creep into the leaf-stalk for food. 



The pupa state is passed in the earth, the fly (which 

 is very difficult to rear) appearing in April. 



Not a common species. Clydesdale, London dis- 

 trict (Healy), Devonshire (Parfitt). 



Continental distribution : Sweden, Germany, Hol- 

 land, France, Russia. 



Obs. This species is probably TentJiredo fuscula, King, which was 

 regarded by Hartig as the $ of Blennocampa pusilla, but as despecta is 

 a better known name I have preferred to adopt it. Zaddach (1. c.) does 

 not give any description of fuscula although treating it as a distinct 

 species : he merely quotes my remarks in Ent. Mo. Mag., xi, 253. I 

 received on loan some years ago a specimen of the species Zaddach 

 considered as fuscula, and it agreed in every respect with the specimen 

 from Gadder Wilderness described above, including the neuration it 

 having only three cubital cellules. D. parvula was not seemingly known 

 to Zaddach who quotes merely King's diagnosis. 



7. DlNEURA SIMULANS. 



Dineura simulans, Cam., E. M. M., xiv, 155 ; Andre, Species, i, 

 91; Cat., 11,* 6., 



$ Black ; antennae filiform, nearly as long as the body, third 

 and fourth joints equal, the remaining joints becoming gradually 

 shorter and thinner. Head (especially on the vertex) very finely 

 punctured, mouth white. Thorax half shining, bare, and finely punc- 



