NKMATUS PALLIDIVENTHIS. 109 



Black, smooth, shining, vertex strongly punctured ; clypeus slightly 

 arched ; mandibles piccous at the tips ; a spot between the antenna, 

 aprx of clypeus and labrum, white ; pronotum, teguke, and abdomen on 

 the underside and at the sides, pale testaceous ; on the dorsum is a row 

 of transverse interrupted black lines; legs pale yellowish-white, the 

 tibia) and base of femora pale white ; a dot on the apex of posterior 

 femora, the apical third of posterior tibia?, and the posterior tarsi, 

 Mack. Wings hyaline, iridescent, slightly clouded in some specimens ; 

 the costa fuscous; the stigma fuscous- black. The first transverse 

 cubital nervure is absent, and the second recurrent nervure is received 

 considerably in front of second transverse cubital. The sheath of the 

 saw is black and hairy, and projects considerably. 



Length 2^3 lines. 



Ab. a. Dorsum of abdomen entirely luteous. 



b. Anterior femora lined with black at the base. 



The coloration of the abdomen varies considerably ; 

 sometimes the dorsum is completely black, at other 

 times entirely testaceous. It closely resembles N. 

 obductus, but may be readily known from it by the 

 vertex being quite flat, not raised in the centre as in 

 the other species. The <? I have never seen, nor ap- 

 parently has any one else. 



The larva, according to Brischke, feeds on the 

 raspberry and on Geum urbanum. It is green, 

 wrinkled ; the dorsal canal is of a darker green, and 

 is bordered on either side by a white line. Each 

 segment bears three rows of hairs. The last segment 

 and the head are shortly haired. Eye spots black, 

 mouth brown. 



Not uncommon in May and June among herbage. 

 Clydesdale, Gloucester. 



On the Continent it has been recorded from Sweden 

 Germany, and France. 



06s. Zaddach (Schr. Ges. Konig., xxiv, p. 318) describes a Nematus 

 eurysternus, of which he says he received a specimen from me from 

 Scotland as N. pallidiventris, Fall., and which he states does not 

 agree with the description given by Thomson of pallidiventris, espe- 

 cially in not having the vertex strongly punctured. I am certain, 

 however, that the specimen referred to belongs to the present species. 

 It is not stated distinctly that eurysternus has a smooth vertex, but 

 judging from the remarks made about pallidiventris it looks as if it 

 had. In other respects it does not appear to differ much from 

 N. pallidiventris, except perhaps in the hind femora not having any 

 black at the apex, but the specimen he received from me is stated to 

 have a small black mark at the posterior knees. In paUidiventris 



