24 GENUS CLADIUS. 



Genus CLADIUS. 



Cladius, Illiger, Rossi, Faun., Etr., ii, 27. 

 Trichiocampus, Htg., Blattw., 176. 

 Priophorus, Dbm., Consp., 4. 



Wings with one radial and four cubital cellules; the first cubital 

 small and usually confluent with the second which is rather long and 

 broad, angled at the bottom where the recurrent nervure is received ; 

 third a little more than half the length of second, and receives a 

 recurrent nervure in an angle; the fourth is the largest. Lanceolate 

 cellule contracted towards the middle. Posterior wings with two 

 recurrent nervures. Antennae 9-jointed, filiform and simple in the 

 ? ; third and fourth joints about equal in length ; the former usually 

 curved. In most species the joints are well produced at the apices. In 

 one section in the males there are longish projections from the base of 

 the third, fourth, and fifth joints, a second has a small projection from 

 the base of the third, in a third section the joints are all simple. 



The head is broader than long ; the clypeus is 

 small, incised at the apex, and in C. viminalis is 

 minutely toothed ; the labrum is semicircular. In the 

 male the clypeus is narrower. The mandibles are 

 curved, the apical tooth long, and there is a sharp sub- 

 apical one. The basal portion is plain in viminalis, 

 minutely toothed in padi. The basal joint of labial 

 palpus is about one-fourth shorter than the second, 

 the third about the size of the first, the fourth about 

 the length of second. The first joint of the maxillary 

 palpus is short and stumpy, second longer and thinner, 

 third about three and a half times longer than second, 

 fourth about the length of the second, fifth longer than 

 the third, sixth about the same length as fifth in padi, 

 in viminalis shorter than it. 



The scutellum is flat, the cerci longish. The legs 

 are moderate in size, the patella large, spurs shorter 

 than one half of metatarsus. The saws are well deve- 

 loped, the sides beset with seven or more rows of stout 

 irregular teeth, and mostly armed with stout transverse 

 processes. 



The egg is oval, white, and is as a rule deposited in 

 the leaf- stalk. The larva cylindrical, with a roundish 

 head ; the skin beset all over with tubercles, usually 



