NATURAL HISTORY SOCIETY OF GLASGOW. 25 



6. Cladius PADI. 



Tenthredo ]J0.di, Linn6, Fauna Sv., No. 1544; Fallen, Acta 

 Holm, 1808, 110, 47. PriopJwrus alhipes, Dahlb. Prod., 104, 38, 

 pi. 2, f. 88, 89. Cladius paUijMS, Lep. Mon., 59, 169; F. Fr., pi. 12, 

 f. 6. Ste. Ill, vii., 23, 3. C. immunis, Ste., I.e., 24, 5. C. pili- 

 cornis, Curtis, Brit. Ent., pi. 457; Ste., I.e., 24-6. Cladius alhipes, 

 Hart. Blattw., 175-8, pi. 2, f. 3, 10, 16, 17, 19, 25, 26, 29 ; 

 Voll. Ticljr, 6, 72-75, pi. 5; Brischke, I.e., 10, pi. 2, f. 2 ; Kalt. 

 Pfi., 174. Cladius padi. Thorns., Hym. Scand., i., 75, 5. 



Black ; antennae longish, pilose, setaceous, nearly as long as the 

 body. Head covered with a fuscous down, frontal tubercle very 

 distinct, epistoma keeled, mandibles reddish, palpi pale testaceous. 

 Thorax shining, covered with a scattered greyish down ; cenchri 

 large, dull white ; tegulae piceous, rarely pale. Abdomen covered 

 with a scattered pubescence ; cerci longish. Wings sub-hyaline, 

 having a smoky tinge (varying in different individuals); costa 

 pale, stigma fuscous. Feet white, the base of the coxae, femora in 

 the middle, and often the posterior tarsi, with the apex of the 

 tibiae, black. Calcaria long. 



Length 2 to 2 J lines. 



The male has the antennae strongly compressed and pilose, 

 and a little shorter than the body. 



G. padi is easily recognised, by having always the trochanters 

 white, the keeled epistoma, and longish cerci and calcaria, and 

 pilose antennae. In the coloration of the legs four aberrations 

 occur : — 



a. femora quite white; 



h. femora with a fuscous splash in the middle; 



c. femora nearly all black ; 



d. posterior tarsi, and apex of tibiae, black; 



also, in many individuals the colour is testaceous, and even 

 inclined to yellow. The wings vary in the amount of smoky 

 colour with which they are suffused ; and the tegulae and palpi 

 vary from black through testaceous to white. 



Larva : head covered with longish hairs, light orange-brown, 

 spotted over with small orange dots ; eyespots black, with a black, 

 roundish mark on the vertex, extending to the extreme back of 

 the head; mouth reddish-brown, with black mandibles. Feet 

 white, claws brown. The ground-colour of the body is usually 

 green, varying to grey ; the sides are clearer, almost white, and 



