16 DINEURA VERNA. 



abdomen varies ; in one form it is quite black, in 

 another the apex, sides, and belly are testaceous (var. 

 ventralis, Zad.j. The wings also have a decided 

 brownish tinge in some specimens. Its <$ may be 

 known from the <? of stilata by the antennaB having 

 a distinct black line above ; the abdomen is also black 

 on the back, while in stilata the antennae and abdo- 

 men are only black at the base. 



The larvae are found in August and September on 

 the under surface of the leaves of Pyrus aucuparia, on 

 which they feed in the usual Dineura fashion. The 

 anterior part of the body is broader than the posterior ; 

 the ground colour is a bright green, with a yellowish 

 tinge ; the back is darker and beset with short white 

 hairs ; the segments at the edges are whiter than the 

 rest of the body ; claws brown ; the head is covered 

 with short pile, yellowish, with black eye- spots and 

 brownish mouth. At the last moult the hairs dis- 

 appear, and the skin becomes yellower and shining. 

 The cocoon is spun in the earth, the fly appearing in 

 the following May and June. 



D. testaceipes is a common species. I have it from 

 many Scotch localities ; from Northumberland ; "Wor- 

 cester, and the London district. 



Continental distribution: Sweden, Germany, France, 

 Russia. 



4. DINEURA VERNA. 

 Vol. I, PL XIV, fig. 4, ? ; 4 a, Mandible. 



Tenthredo verna, Klug, Berl. Mag., viii, 55, 21. 



punctigera, Lep., P. Fr., pi. 7, fig. 6 ; Mon., 110, 318. 

 Selandria verna, Ste., 111., vii, 47, 11. 



biloba, Ste., 1. c., 54, 39. 

 Dineura opaca, Htg., Blattw., 229, 8. 



pallipes, Htg., 1. c., 229, 9. 



verna, Giraud, Ann. Fr. (5), i, 386 (lar.) ; Cam., 



Fauna, 27, 4; Andre, Species, i, 

 93 ; Cat., 11,* 8. 



opaca, Br. and Zad., Beobach. ii. Blattw. (2), 37, 12, 



Taf. xi, fig. 3. 



dorsalis, Foer., S. E. Z., v, 262. 



