64 HYLOTOMA ROSJ1. 



black but becomes brownish-yellow after the last moult 

 and bears then two small marks on the vertex, and 

 there may be also a transverse mark ; the eyes are 

 black, mouth brown. The body is bluish-green, the 

 dorsal vessel is flanked by yellow marks of variable 

 size which may become united and thus make the back 

 entirely yellow. All the segments, except the second 

 and last, bear six rows of shining, black, bristle-bearing 

 tubercles of various sizes, which form so many rows 

 along the body. Below these, over the legs, is a larger 

 shining black spot which bears several bristles, and 

 succeeding this is a smaller black mark. The last two 

 segments bear only small tubercles, and over the anus 

 is a large black mark. The spiracles are small and 

 black. The thoracic legs have black claws and a 

 black plate above. The former has in front a brown- 

 ish wart. 



The larvae are found from July to October. The 

 eggs are laid in the rose twigs in a double row, each 

 egg being laid in a separate incision, which becomes 

 blackened. Two broods are met with during the year. 

 The pupa state is passed in a double cocoon of the 

 usual form in the earth. Eulophus hylotomarum, 

 Bouche, E. migrator, Be., and E. incubator, Be., are 

 parasites. 



Yon Stein (Ent. Nachr., 1878, 288) finds that rosx 

 is parthenogenetic and gives (1. c.) many details about 

 its oviposition, &c. 



Common in the South of England. 



Continental distribution : all over Europe. 



11. HYLOTOMA CYANEO-CEOCEA. 

 PI. I, %. 2, ? . 



Tsnthredo cyaneocrocea, Forster, Nov., Sp. Ins., 78. 



ccerulescens, Fab., S. E., 321, 18 ; Pz., F. G., Heft 49, 



pi. 14 ; Rossi, Fn. E., ii, 38, 714. 

 bicolor, Schrank, Beitr. z. Nat., 84. 



