80 MANDIBULATA. COLEOPTERA. 



acute : elytra elongate, narrow, attenuated behind, and covering the abdomen : 

 body oval: tibiae slender; tarsi with the basal joint small, the second and 

 third joint bilobed, the fourth minute, concealed within the lobes of the pre- 

 ceding; claws long, bent. 



Byturus agrees with the insects of the last section of Crypto- 

 pliagus in having the third joint of the tarsi bilobed, but it differs 

 from them in the structure of the antennae and in the form of body ; 

 from Mycetsea and the other kindred genera it differs also by the 

 same characters : — the only indigenous species frequents flowers. 



Sp. 1. tomentosus. Fusco-piceus aut testaceus, Jlavescente-griseove-pubescens, 

 antennis pedibusque Jlavo-testaceis. (Long. corp. l| — 2 lin.) 



De. tomentosus. Fabricius.— By. tomentosus. Steph. Catal. 86. No. 939. 



Piceous-brown or testaceous, densely clothed with a short griseous pubescence : 

 head narrowed anteriorly, forehead depressed, punctate ; mouth testaceous ; 

 eyes large, globose, black : thorax truncate anteriorly, subsinuated posteriorly, 

 and rather wide ; the disc convex, punctate : scutellum small, rounded, obtuse: 

 elytra oblong convex, attenuated posteriorly, thickly punctate, and densely 

 pubescent : body beneath fusco-piceous, pubescent, the apex paler : legs an- 

 teriorly pale testaceous. 



The colour of this species varies greatly ; occurring of various shades of tes- 

 taceous, yellowish, piceous, and brown; sometimes rufescent: the thorax is 

 occasionally fuscous or rufous, and the elytra testaceous or piceous. 



Extremely common in flowers, not only throughout the metro- 

 politan district, but also in other parts of the country. " Near 

 Swansea." — L. W. Dillwyn, Esq. 



Genus CXLV. — Mycet^ea, Kirby. 



Antenna? about as long as the thorax, the basal joint large, robust, subcylindric, 

 the second small, slightly elongate cylindric ; the third to the eighth shorter, 

 more slender, and of uniform length ; the ninth rather larger, transverse, cup- 

 shaped; the tenth still larger, subglobose ; the eleventh very large, ovate ob- 

 tuse. Palpi short, minute, the terminal joint subulated : head subquadrate, 

 convex ; eyes small, nearly prominent : thorax short, transverse, emarginate 

 anteriorly, the lateral margins slightly rounded, entire, with a distinct elevated 

 line parallel thereto on the disc : elytra ovate, convex, punctate-striated, entire, 

 acute at the apex : body convex : legs rather short : tibiae simple : tarsi, an- 

 terior with an appendage at the base. 



The singular genus Mycetsea may be known from Byturus, by 

 the different structure of its antennae, its short, convex form, 

 subulated palpi, the elevated line on the thorax, and other less 



