148 NEMATUS GLOTTIANUS. 



back, close to the side, is a broad black band, composed 

 at the end of the body of disunited oblong marks, but 

 anteriorly they are continuous. Down from this line, 

 and touching it, are eleven oblong, deep orange marks, 

 divided by the fold of the skin in the centre. Below 

 these, and touching them, is a line of oblong black 

 marks closely packed together, but not united, small 

 at the second segment, but gradually getting larger as 

 the tail is reached. Directly over each clasper, and a 

 little on the hinder edge, is a long, slightly oblique 

 black mark, longer than the clasper itself, and there is 

 also a similar mark over the fifth. Before the first 

 pair of feet is a curved, oblique line. The anal segment 

 bears a large somewhat triangular mark, in front of 

 which are two oblong black marks. On the belly, 

 which is slaty-grey, are seven black marks. Length 

 1J inches. The body is stout and cylindrical. 



The larvae are gregarious, but not so much as the 

 larvae of N. glottianus, which they resemble, as they do 

 also those of N. melanocephalus. They feed on birch 

 and on Salix pentandra in June and August, but there 

 seems to be only one brood in the year. Bassus 

 peronatus, Marshall, is the parasite. 



Probably not uncommon. Clydesdale, Kingussie, 

 Rannoch. 



69. NEMATUS GLOTTIANUS. 

 PL I, fig. 4 ? . 



Nematus glottianus, Cam., Trans. Ent. Soc., 1882, 536. 

 cadderensis, Cam., E. M. M., xii, 128 (lar. only). 



Dark reddish-luteous, the hinder edge of vertex and a longitudinal 

 line on each of the lateral lobes of mesonotum black. Antennae pale 

 testaceous, not much longer than abdomen and metathorax, stout, 

 attenuated at the apex, the third and fourth joints almost equal, the 

 apical joints slightly fuscous. Mesonotum finely punctured. Wings 

 yellowish-hyaline, stigma and costa testaceous ; third cubital cellule 

 one-fourth longer than broad. Tarsi nearly as long as the tibiae ; 

 extreme apex of all the joints fuscous ; metatarsus not double the 

 length of second joint ; spurs one-third of the length of metatarsus. ? 



Length 3 lines. 



