118 NEMATUS MACULIGER. 



dot on the second segment ; on back two small dots 

 commence like the central row on the same segment. 

 Over the anus is a large mark, rounded at base, and 

 ending in the two large cerci, which are also black. 

 A thin white line goes through the spiracles down the 

 sides. The ventral warts are orange. 



Length 7 lines. 



The larvse are gregarious, many feeding on the 

 same leaf. In habits and mode of feeding (as they 

 are in coloration) they are identical with the larvse of 

 N. pavidus. 



Local. "Worcester. 



Continental distribution, Sweden. 



47. NEMATUS MAOULIGEB. 

 PI. XX, fig. 6, Saw. 



Nematus lacteus, Thorns., var. 6, Hym. Sc., i, 155, 88. 

 maculiger, Cam., Trans. Ent. Soc., 1882, p. 538. 



Pale yellowish-white, head darker, more testaceous, a large mark on 

 vertex, extending to base of antennae, a large mark on breast, and the 

 whole of meso-metanotum and back of abdomen (except at junction of 

 segments) black ; apex of hinder tibiae and tarsi blackish. Antennae 

 short, filiform, black above, brownish beneath ; the third and fourth 

 joints subequal. Spurs about a third of the length of metatarsus, and 

 not much longer than cerci. 



The (^ has thicker, more pilose, and longer antennae, the mark on 

 vertex is larger, more extended, laterally and behind ; mesothorax 

 entirely black, as well as the whole upper part of the body; the basal 

 half of hinder tibise and tarsi black ; the stigma griseous. 



Length 2| 3 lines. 



Yery closely allied to N. lacteus, but slightly smaller ; 

 the antennsD are shorter, with the third joint shorter 

 compared to the fourth, and they are lighter coloured 

 on lower side, the black mark on vertex is wider at 

 the sides, continued on either side to the antennse, 

 and in the middle to the antennal fovea ; behind it is 

 usually more distinctly narrowed than the middle 

 portion ; the breast is black, the spurs slightly shorter. 

 The head is narrower behind the eyes. 



The males of the two species are not readily sepa- 



