70 MANDIBULATA. — COLEOPTERA. 



, At. nigrirostris, and its testaceous hue from At. linearis, the only two species 

 of the genus with which it can be confounded. 



Found in Suffolk, and occasionally in the metropolitan district : 

 not common. 



Sp. 21. linearis. Elongata, depressa, nigra pubescens, antennis pedibusque cas- 



taneis. (Long. corp. ^ — § lin.) 

 At. linearis. Steph. Catal. 85. No. 917. 



Elongate, depressed, slightly pubescent, black, the antenna? and legs castaneous. 

 The linear and very elongate form of this species, combined with its black hue? 

 sufficiently characterize this species. 



Not uncommon in the metropolitan district. 



Genus CXLI. — Typh^ea, Kirby. 



Antenna* somewhat remote at the base, slender, the basal joint rather stout, sub- 

 globose; the second smaller, subcylindric, as long as the third, both elongate; 

 fourth short, subglobose : fifth elongate, clavate ; three following short, sub- 

 globose; the remainder forming the club, each joint large, the two first some- 

 what globose, truncate, the last larger ovate, obtuse. Palpi short, subfiliform, 

 the terminal joint elongate ovate, subacute : head subtriangular ; eyes globose : 

 thorax transverse, the lateral margins entire: scutellum small, triangular: 

 body elongate, more or less depressed : elytra elongate, sublinear : tarsi simple, 

 five-jointed; the posterior pair in one sex four-jointed only. 



There is considerable resemblance in form between the insects 

 of this genus and of the last section of the preceding, but they may 

 readily be distinguished by the difference in the structure of their 

 antennae, which have the basal joint alone incrassated ; the second 

 rather slender, subcylindric, and equal in length Math the third, 

 which is elongate, clavate ; the capitulum somewhat larger, and the 

 joints not alternately longer and shorter. 



Sp. 1. Sparganii. Oblongo-ovata, ferrugineo-ochracea, subpubesceus, elytrorum 



basi margine suturdque fusco-nigris. (Long. corp. 1| lin.) 

 Cr. Sparganii. Leach MSS.—M. Sparganii. Steph. Catal. 85. No. 918. 



Oblong-ovate, rusty-ochraceous, slightly pubescent; head obscurely punctate : 

 thorax subquadrate, rather convex anteriorly, rufescent: elytra somewhat 

 deeply punctate, broader than the thorax at the base, the margins slightly 

 dilated, the shoulders with an elevated tubercle : the base, region of the scu-. 

 tellum, suture, and margin of a fuscous-black: antenna? and legs ochraceous: 

 abdomen pitchy-red. 



