18fi7.1 101 



ON SOME BRITISH CYNIFIDJE. 

 BY THE EEV. T. A. MAESHALL, M.A. 



{Continued from 'page 8.) 



ii. Thorax coriaceous or glabrous, not villose. Maxillary 

 palpi 5, — labial 2-articulate. 



Gen. Andricus, Hartig. 

 The species are minute, and differ from Cynips only in a few 

 unimportant points. The antennae are frequently longer than the 

 body, and more distinctly sub-clavate. Both sexes are known. The 

 abdomen of the ? is more compressed than in Gynips ; that of the 

 ^ is often very small. The disc of the thorax is free from villosity, 

 except in A. quadrilineatus, Hart., and A. Rartigii, described below, 

 which thus serve to connect the two genera. These insects either form 

 galls for themselves, or are bred parasitically in those of Cynips. 



Andricus Hartigii, n. sp. 



Antennae 15-jointed, rufo-fuscous. Body ferrugineous ; head black. 

 Mesothorax with a broad medial black band, reaching the collar, but 

 abbreviated posteriorly, and on either side a narrower stripe, abbreviated 

 in front, but reaching the scutellum : the disc glabrous, the sides with 

 some traces of villosity ; the discal sutures strongly marked. Scutellum 

 sub-rugose, villose, depressed, rufous, margined with black at the base ; 

 declivity of the metathorax black, with a rufous dot on each side above. 

 Petiole rufous. Abdomen black and polished above, at the base and 

 beneath, rufescent ; carinated from about the middle to the apex ; 

 slightly villose at the base. Terebra and legs rufous ; the last joint of 

 the tarsi fuscous. Wings hyaline ; nervures rufo-fuscous. 5 . 



Long. 1\ ; alar. exp. 4i lin. 



Most like A. quadrilineatus, Hart., but irreconcileable with his 

 short description. It appears to be an Andricus, although the palpi 

 are unobserved, and cannot be seen without destruction of the specimen, 

 which is in Mr. "Walker's collection, and is the only one I have seen. 



Andricus trilineatus, Hart. 

 Black ; antennae at the base, abdomen, and legs, rufous. Disc of 

 the mesothorax transversely rugose, rufous or testaceous, with three 

 black bands. Abdomen at the apex, and hinder coxae at the base, 

 black. $ . Long, f ; alar. exp. 2\ lin. 



A. trilineatus. Hart., in Germ. Zeits., 2, p. 191. 

 It differs from the preceding in being much smaller. The 15- 



