Hi MANDIBUI.ATA. COT-KOPTKRA. 



■punctured, with in-cgular transverse irrinhlt's iind J'ovcce, and tiro obsolete 

 al)l)reviatc{l 7-idiies on each : legs piceons ; the untcrior til/ia' very much 

 dilated at the apex, triangular, triclentate without. 



Much less abundant than the last, especially in the neighbourhood 

 of the metropolis, where it is but rarely taken ; though in some parts 

 of the country it appears in profusion. " Very common on the sand 

 hills (near Swansea)." — L. W. Dillnyn, Esq. "Lowestoft, Suf- 

 folk."— jr. C. Hewitson, Esq. "Near Liverpool."— iiei'. J. //. 

 Matthews. 



Genus CCCCXXXIV.— Heliofhilus, De Jean. 



Antcnmc moderate, a little thickened at the apex, ll-jointed, basal joint 

 slightly robust ; second short, subquadrate ; third elongate, subcylindric ; 

 fourth also subcylindric, rather shorter than the third ; fifth, sixth, and 

 seventh, subnodose; eighth, ninth, and tenth, suborbiculate transverse; 

 eleventh suborbiculate. Palpi (wanting in the only specimen I have seen) : 

 head subquadrate ; clypeus deeply emarginate in front : eyes small, remote 

 from the margin : thorax transverse, deeply emarginate in front, with the 

 anterior angles acute, lateral margins rounded, with the posterior angles 

 obliquely cut off, hinder margin straight : body convex : elytra united : 

 wings none : legs stout : tibice compressed, triangular, with short spurs, 

 anterior slightly dilated, simple : tarsi short, simple, heteromerous. 



Exclusively of the diversity in the structure of the antennae of this 

 genus, the great dissimilarity of the form of its thorax sufficiently 

 removes it from Opatrum, which last genus has the posterior angles 

 of the thorax produced backwards to the base of the elytra, which 

 they firmly embrace ; while in the present genus they are obliquely 

 truncate, with the hinder margin straight, so as to present a space 

 between that part and the abdomen, as in the Scaritidae. 



Sp. 1. obsoletus. Plate xxiv. /. 2. — Ater, suhnitidus, capite thoraceque punc-> 

 iatis, elytris tenue striatis striis punctatis, interstitiis obsolete, rugosis. (Long, 

 corp. 5 lin.) 



Te. obsoletus. Marsham. N. G. obsoletus.— 5'i'ep^. Catal. 243. No. 2431. 



Black, slightly shining : head and thorax very thickly and finely punctured 

 throughout : elytra rather faintly striate, the striae punctate, the interstices 

 obsoletely rugose : body beneath rather thickly punctured. 



One specimen only is known of this insect, which I obtained from 

 the Marshamian Collection, and which appears to have been captured 

 on the coast of Suffolk. 



