HELOPID.E. ALLECULA. SI 



Genus CCCCXLIV. — Allecula? Fabricius. 



Antennae long", slender, the basal joint attenvxated at the base, the second sub- 

 cylindric, about half the length of the third, which is somewhat cylindric, 

 stoutest at the apex, and of equal length with the remainder, the terminal 

 one being somewhat elongate-ovate, obliquely acuminate. Palpi unequal, 

 maxillary long, with the terminal joint slightly incrassate, and obliquely 

 truncate: labial short, with the last joint clavate : labium emarginate : head 

 porrect, elongate, and narrowed anteriorly: eyes oblong: thorax transverse, 

 subquadrate, slightly narrowed behind : body elongate : wings ample : legs 

 elongate ; femora slightly thickened ; tihim simple, with short spurs at the 

 apex : tarsi with entire joints ; claws denticulated. 



The insects contained in the present genus may be known from 

 the Cistelae by the subquadrate thorax, of which the hinder portion 

 is somewhat narrower than the middle, the head is considerably pro- 

 duced in front, the eyes prominent, the second joint of the antennae 

 cylindric, somewhat elongate in comparison with that of the former 

 genus, and the palpi are of dissimilar form. 



Sp. 1. sulphurea. Pallide sulphur ea,antennis tar sisquef usco-Jerr ugineis, elytris 



obsoletissime striatis. (Long. corp. 4 — 4^ lin.) 

 Ch. sulphurea. Linne. — Martyn Col. pi. 11 . f. ^^. — All..'' sulphurea. Steph. 



Catal. 246. No. 2449. 



Pale sulphureous yellow ; maxillary palpi and apex of the mandibles fuscous : 

 thorax with an obsolete dorsal furrow, and a large rounded fovea on each 

 side near the base : elytra very obsoletely striated : tarsi and antennae obscure 

 ferruginous ; the apex of the latter rather fuscescent. 



Not common within the metropolitan district, where it occasionally 

 occurs on umbelUferous flowers in June ; but near Dover and other 

 parts of the coast it appears to be in great plenty. " Sometimes very 

 abundant on the flowers of Rosa spinosissima, on Sketty-burrows." — 

 L. W. Dillwyn, Esq. "DeviFs- ditch, Gogmagog-hills, &c." — 

 Rev. L. Jenyns. 



Sp. 2. bicolor. Nigra, ore elytris pedibusque sulphureis, ihorace fuscescente aut 



nigro, tarsisfuscis. (Long. corp. 4 lin.) 

 Ci. bicolor. Fabricius. — All. ? bicolor. Steph. Catal. 246. No. 2450. 



Black; mouth yellow; palpi black : thorax obscure fuscescent or black, with 

 a fovea on each side at the base, and a faint dorsal furrow : elytra sulphu- 

 rous, very obsoletely striated : legs sulphurous, with the tarsi fuscous : 

 antennce also fuscous. 



Found in Norfolk, probably a mere suffused variety of the fore- 

 going insect. 



