NEMATUS BEEGMANNi. 123 



N. glutinosce, N. salicivorus and N. miliaris. Thomson 

 gives as a specific character of some value the fact of the 

 third joint of the antenna being not much longer than 

 the long diameter of the eye ; and this is the case with 

 most of the specimens I have ; but it does not appear 

 to be a safe character, for I find that the relative 

 length of the third joint varies ; thus one specimen 

 of viridescens has it longer than the eye, and in 

 N. palliatus it may be equal in length to it or longer. 



The apex only of the scutellum may be black, but 

 there may be also a black stripe through the centre 

 as in palliatus. 



Rare. On birch at end of May. Mugdoch near 

 Glasgow ; Norwich (Bridgman). 



52. NEMATUS BEEGMANNI. 

 PI. XXI, fig. 3, Saw. 



Nematus Bergmanni, Dbm., Clavis, 23; Thorns., Hym. Sc., i, 



150, 81. 



viridis, Ste., 111., vii, 30, 13. 



virescens, Toll., Tijd. (2), ii, 168, pi. 7. lar. 



prasinus, Htg., Blattw., 216, 49. 



croceus, var. d., Thorns., Opus., 636. 



Green ; the space surrounding the ocelli extending as a narrow 

 stripe behind, a mark on middle lobe of mesonotum, a large, longer one 

 on lateral lobes, a smaller, rounder one joining these to the scutellum, 

 a small one between at the apex of scutellum, a large spot on either 

 side of scutellum, the space surrounding the cenchri (much broader 

 behind), post- scutellum, metanotum, and a row of marks (not much 

 wider than long) on back of abdomen, black. Scutellum with one or 

 two fuscous marks on its apex. Antennae long, filiform, the third and 

 fourth joints subequal ; furrows in vertex distinct ; frontal area not 

 well defined; antennal furrows deep, almost straight, ending in a 

 sharp angle. Spurs longish, as long as the cerci; posterior tarsi and 

 apex of tibiae blackish ; stigma greenish- white. 



Length 4 5| lines. 



The largest of the green species. It comes nearest 

 to N. miliaris, but the sutures on head and thorax are 

 deeper, the cheeks wider, the antennal furrows end in 

 a sharper angle, the head and mesonotum have a more 

 distinct testaceous tinge, the antennae are longer, tarsi 



