304 GENUS ATHALIA. 



(Cork), Kerry (Haliday). It seems to be attached to 

 birch, and appears in June, July and August. 



Sweden is the only Continental country from which 

 it has been recorded. 



Genus ATHALIA. 



Athalia, Leach, Z. M., iii, 126. 



Wings with two radial and four cubital cellules, all angled where the 

 recurrent or transverse nervures are received. Basal nervure jointed 

 to cubital; transverse median received not far from base of cellule. 

 Lanceolate cellule with an oblique cross nervure. Posterior wings with 

 two middle cellules ; the recurrent and transverse cubital nervures 

 received close to each other ; accessory nervure longly appendiculated ; 

 costa and stigma thick ; there is no costal cellule owing to the thickness 

 of the nervures. 



Antennce short, distinctly thickened from the fifth joint to the apex, 

 almost clavate, ten to eleven-jointed, the third joint double the length 

 of fourth. 



Head without sutures; eyes large, oblong, converging; clypeus trun- 

 cated at the apex ; labrum large, somewhat triangular. Mandibles 

 large, with a subapical tooth. 



The body is short, broad, the wings large, broad. 

 The feet are stout, with simple claws, and spines which 

 are not one-third of the length of the metatarsus. The 

 tarsi longer than the tibise, and with the patella3 of 

 moderate size. The abdomen is not much, if longer 

 than the head and thorax ; the blotch is distinct. 



The ground colour is luteous, with the head, an- 

 tennae and thorax more or less black ; usually the 

 tibiae have the apices of the joints black. The wings 

 have a yellowish tinge, or are hyaline ; the stigma and 

 costa are black. 



The larvae are cylindrical, thick compared to their 

 length, bare or ornamented with tubercles. The 

 ground colour is black or slate, sometimes marked with 

 white dots ; the skin is more or less wrinkled. A 

 single cocoon is spun in the earth. Their food plants 

 are Cruciferce, Scrophularice, and possibly Clematis. 



This genus is apparently confined to the old world, 

 where it has a very wide range, not only occurring all 

 over the Palasarctic region, but also in the Oriental 



