TENTHREDINID^. ALLANTUS. 57 



Head and thorax much punctured and blacky the palpi, orbits of the eyes, and 

 line beneath the antenna;, with the shoulders, white; abdomen smooth, 

 black, with the 4 anterior segments milky-white on each side, and the 

 remainder entirely bordered with the same ; legs black, white anteriorly ; 

 wings thick, somewhat fuscous, with the costa and stigma ochreous, tinged 

 with ferruginous; nervures brown. 

 Not common : found early in April at Hertford ; also at Coombe 



wood and near Bristol. 



§ 6. Antennw 9-jointed, moderate, or elongate; body moderate or elongate, 

 generally the latter ; anterior wings with 2 marginal areolets. 



Genus XX.— ALLANTUS, Panzer. 



Antennce somewhat clavate, or setaceous, 9-jointed, the 3rd joint longer than 

 the 4th, the remainder gradually decreasing in length : mandibles 2- or 4- 

 dentate : labrum rounded : head broad, subquadrate, deeply emarginate 

 behind : eyes rather large : ocelli 3 : wings somewhat long and slender, 

 ample ; anterior with 2 marginal areolets, divided by a curved nervure, the 

 basal areolet being somewhat lanceolate, the apical one ax-shaped ; and 4 

 submarginal ones, the 1st small, somewhat angulated, 2nd narrow, receiv- 

 ing 1 recurrent nervure, 3rd triangular, receiving 2 recurrent nervures, 4th 

 scarcely extending to the apex : abdomen elongate : legs slender ; posterior, 

 especially in the males, elongate, and in that sex the hinder tarsi are dilated 

 at the base ; the tibiae furnished at the apex with 2 long acute spurs. 

 This is rather an extensive genus, and may be readily known from 

 the others belonging to this section by the structure of its antennae 

 and wings : it appears, however, to require considerable subdivision, 

 but probably all may with propriety be retained under one genus : the 

 species are generally of large size, and the males — especially in the 

 1st section — differ much from the females, and have the posterior 

 tarsi dilated, and generally of a dark hue : they are extremely 

 voracious in their final state, devouring other insects. 



A. Antennce short, somewhat clavate at the tip. 



a. Antennae entirely, or nearly all, yellow. 



Sp. 1. Scrophulariae. Niger, abdomine cingulis 6, 1-mo remoto, collare scutel- 



loquejlavis, pedum tibiis tarsisque luteis. (Long. corp. 6 — 6^ lin.; Exp. Alar. 



111—12 lin.) 



Te. Scrophulariae. Linne. — Al. Scrophulariae. Samouelle, pi. 8. /. 2. — Steph. 



Catal. 332. No. 3866. 

 Black: antennae luteous-red; labrum and clypeus yellow; sides and front of 

 the collar, a spot in front, above the anterior legs, scutellum, and streak 



