NEMATUS CALEDONIOTJS. 159 



Ab. a. Edges of meso- and metanotum and the 

 abdominal segments at the edges black. 



The larva has the head obscure greenish-yellow, 

 with a brownish mouth, blackish eye-spots, two 

 brownish -black marks on the vertex, and is covered 

 closely with short hairs. The legs are light green, 

 and are almost hidden by the overhanging folds of the 

 body; the claws are brown. The body is flat, and 

 tapers towards the end ; the ground colour is grass- 

 green (not unlike the colour of the alder leaf). On 

 each segment are four transverse wrinkles and two 

 transverse rows of white tubercles, with two single 

 tubercles in front ; at the sides the segments project. 

 The back is darker, almost bluish-green ; the anal 

 segment greyish. "When young the larva is much 

 paler and clearer, and the marks on the vertex are in- 

 distinct. 



In its habits, food plant, &c., it does not differ from 

 the other larvae just described. I find the larvae from 

 July to September. The pupa is glassy-green. 



This is the commonest species of the group, and its 

 distribution appears to be coextensive with its food 

 plant, occurring from Thurso to the South of England. 



Its Continental distribution is equally wide, being 

 found from Lapland and Finland to France; from 

 Italy to the Ural Mountains. 



76. NEMATUS CALEDONICUS. 

 PL XXIV, fig. 2, Saw. 



Nematus caledonicus, Cam., Trans. Ent. Soc., 1882, 533. 



Reddish-yellow, two longitudinal black marks on mesonotum; dorsum 

 of abdomen with black transverse marks, interrupted in the middle, 

 metanotum with two short black marks at the sides. Wings yellowish. 

 Stigma testaceous, black at the base. Antennae as long as the abdo- 

 men and half the thorax ; the third joint shorter than the fourth, but 

 longer than the long diameter of the eye ; the four basal joints black 

 above ; the third cubital cellule nearly one-fourth shorter than the 

 second ; recurrent nervure received close to second transverse cubital. 



