SUB-TRIBE ABIIDES. 27 



The egg's are laid on the leaves of Salix fragilis, &c., 

 attached to the" veins according to van Vollenhoven, 

 on the edge according to Brischke. The larvas are 

 more slender-bodied than with Cimbex or Trichiosoma. 

 The thorax is thicker than the abdomen, which de- 

 creases gradually towards the tail. The head is green, 

 the eye-spots black ; the body is bluish-green or dirty 

 greyish-green. The skin is wrinkled ; each segment 

 is divided into seven folds. There are no warts, but 

 the body is sparsely strewed with a white powder. 

 The spiracles are black, triangular; the legs green, 

 with black claws. 



In confinement, at least, the cocoon is peculiar, the 

 outer cocoon being loose in texture, like network, and 

 white in colour. Zaddach says that when it is spun in 

 the earth it is oblong, but when it is spun in the folds 

 of bark, the usual place where it is spun, its sides are 

 strongly compressed. See Vol. II, Plate XII, fig. 4. 



Brischke found the larvse on poplars besides willows. 



Campoplex pubescens, Rtz. ; C. amerinsB, Rondani ; 

 Cryptus leucocheirus, Rtz. ; Mesochorus cimbicis, Rtz. ; 

 M. testaceus, Gr., are parasites of the larvaB. 



Not common. Windsor (Stephens). 



Continental distribution : Sweden, Holland, Ger- 

 many, Greece, Russia, Algeria. 



Sub- tribe. ABIIDE s . 



Body moderate (34 lines). Lanceolate cellule constricted in the 

 middle; first cubital cellule receiving both or only first recurrent 

 nervure. 



The head is less swollen than in the Cimbicides, and 

 the eyes arc slightly emarginated on the inner side. 

 The mandibles are smaller, not so strongly toothed. 

 The last three joints of the maxillary palpi are much 

 more elongated and thinner. 



The sub-tribe contains two or, according to others, 

 three genera. The disputed genus is Zarssa. It was 



