GENUS CLAVELLARIA. 25 



It feeds on the hawthorn (Crat&gus oxyacantha) dur- 

 ing July and August. 



Oryptus cimbicis, Tschek, Tryphon sorbi, Saxs., and 

 Monodontomerus obsoletus, Fab., are parasites of the 

 larvae. Commonly distributed. 



Continental distribution : Sweden, Germany, Hol- 

 land, France. 



Genus CLAVELLARIA. 



Clavellaria (p.), Oliv., Enc. Meth., Ins. iv, 22; Leach, Z. M., 

 iii, 111 (1817). 



Posterior coxse placed close together. Lab rum large, apex rounded. 

 Antennae with only four joints preceding the club. Blotch absent. 

 Claws simple. 



The third joint of the antennae is longer than the 

 succeeding two, the fourth as long as the basal two 

 together. The club has no trace of segmentation in 

 any of the specimens I have seen. The clypeus is 

 slightly emarginated, and is more than half as long as 

 the labrum, which has its edges projecting outwardly, 

 so that it is somewhat hollow. The mandibles are 

 long, and where they meet the tips leave an open space 

 between them and the labrum. The sutures on the 

 vertex are as in Oimbex. The frontal area is hollow. 



The inner lobe of the maxilla is rounded at the top, 

 the sharper-pointed outer one reaches to within one 

 third of the length of inner lobe from the top. The 

 lower half of the maxilla is provided with longish hairs 

 on the outer side ; the cardo is as long as the stipes, 

 and is darker than it. Palpi short. The basal three 

 joints are thicker than the others ; joint two is a little 

 longer than third, which again is longer than the fourth; 

 the fourth and fifth are subequal, the sixth a little 

 longer than the second. Labium longish, the lobes 

 equal in length. Palpi short ; the first joint is small, 

 second and third longer and subequal, the fourth is 

 the longest. 



The neuration of the wings does not differ much 



