192 NEMATUS ALBIOAEPUS. 



towards the base, the third and fourth joints equal. Head black, finely 

 punctured on the vertex ; the sutures and pentagonal area distinct, the 

 mouth (clypeus and labrum) white, and eyes (especially behind) bor- 

 dered with pale testaceous. Mandibles brown at the tips, clypeus deeply 

 incised. Thorax black, shining, tegulse white, pronotum broadly edged 

 with white; cenchri pale white. Legs whitish-testaceous, posterior 

 tarsi shorter than tibise, the apical joints of the posterior tarsi fuscous ; 

 spurs more than one-third of the length of metatarsus ; claws bifid. 

 Wings hyaline, the costa and stigma white, nervures pale fuscous ; the 

 second recurrent nervure is joined to the second transverse cubital. 

 Abdomen black, mucronate at the apex ; the anal segment above and 

 the three apical segments beneath dirty testaceous ; the cerci moderately 

 long, white. Terebra short, a little more than one-third of length of 

 abdomen ; sheath broad at apex, rounded, covered with long hairs. 



The $ has the antennae longer than in the ? , and they are also 

 pilose ; the coxae and femora are for the greater part black ; posterior 

 tarsi black, and the abdomen above is brownish at the junction of the 

 segments. The head is quite black (in the only specimen I have seen) 

 with the mouth pale testaceous. 



Length 2 lines. 



Similar to N. baccarum but larger, stigma of a clearer 

 white, antennae longer, legs of a decided yellowish hue, 

 and anal segment almost entirely black. 



This insect was bred by Mr. C. Healy from galls 

 found by Mr. Eedle on Vaccinium vitis idcea at 

 Rannoch. 



These are bare, in shape oval, but if anything longer 

 than broad, and slightly compressed laterally. In 

 colour they are dull green, becoming brownish when 

 old, and by the time the larva has become full fed 

 they are reduced to mere thin- walled bladders. In 

 general structure and shape they do not differ from 

 the galls of N. cinerece, and the larva is similar in 

 habits. 



95. NEMATUS ALBIOAEPUS. 



Nematus albicarpus, Costa, Fauna, Nap. Tenth., p. 22, pi Ixv f 1 

 (1859); Andre, Species, i, 134 ; Cat.' 7*; 

 Kirby, List of Hyrn., i, 138, 264. 



Black ; labrum and apex of clypeus white ; tegulse, the edge of pro- 

 notum, and legs, pallid white ; base of coxae black ; apex of tarsi brown. 

 Wings hyaline ; nervures brown ; stigma whitish-brown at the apex. 



Length 1| lines. 



