THE GROUP OF PARV1CORNIS. 79 



than in astutus, but according to Thomson this is 

 a point in which lativentris varies, the pronotum and 

 tegulaa being even quite black. Compared with pal- 

 lipes the third cubital cellule is narrower at the apex. 



Thomson describes the $ as having the abdomen 

 glabrous at the apex, where there is a small narrow 

 fovea on the back of the eighth segment, the anus 

 being black or pale reddish. 



Taken in Braemar by Dr. White. Sweden and 

 Germany are the only other recorded localities. 



22. NEMATUS LEUCOPODIUS. 



Nematus leucopodius, Htg., Blattw., 200; Andre, Species, i, 



132; Cat., 15*; JBr. and Zad., 

 Schr. Ges. Konig., xxiv, 143, 125. 



Black, tegulaB, collar at base, and legs, clear white, the coxse at base, 

 apex of posterior coxse and posterior tarsi black, sometimes the base of 

 the latter and the hind knees are brownish, labrum and clypeus 

 white. Antennae longer than the abdomen in $ , nearly as long as the 

 body in $ ; in the latter the joints are compressed, and taper very 

 perceptibly towards the apex. Wings clear hyaline, costa and stigma 

 pallid fuscous. The ventral surface is more or less brown, especially at 

 the junction of the segments. Head slightly punctured, frontal area 

 and sutures obsolete ; clypeus truncated. 



Length 3 lines. 



In general coloration N. leucopodius comes nearest 

 to N. appendiculatus, but it is a larger species ; the 

 antennae are quite black and shorter, and the legs 

 are pure white throughout. 



" Britain, J. F. Stephens," Kirby, List of Hymen., 

 i, p. 117. Unknown to me. 



Continental distribution : Germany. 



V. THE GROUP OF PARVICORNIS. 



Black, labrum, edge of pronotum, tegulce, and most 

 of the legs whitish-testaceous ; stigma fuscous. Antennce 

 stout, not much longer than thorax t the third and fourth 



