HAUPALlDiE. — BI.EMUS- 171 



Sp. 13. cognatus. Niger, thorace posterins angustiure rotundato, foveis baseos 

 ■punctatis, elytris ferrugineis, plagj lanceolata nigro-cccntJescenie. (Long. 

 corp. if lin.) 



Ca. cognatus. Gyllenhal ? — St. cognatus. Steph. Catal, p. 34. No. 320. 



Size of St. dorsalis^ which it resembles ; but the structure and fovese of the 

 thorax are different : head black, shining; mouth and labrum pitchy : palpi 

 pitchy, with the tip pale: antennae pitchy-brown, with the basal joint testa- 

 ceous: thorax obliquely narrowed behind, moderately convex, shining black, 

 the hinder margin obscure ferruginous, the base with a deep punctate fovea 

 on each side: elytra with a dorsal patch, as in Tr. dorsalis, but sometimes 

 deep ferruginous : body beneath glossy black : thighs black, or pitchy-red : 

 tibiie and tarsi pale testaceous. 



Rare near London ; I have seen one specimen only. 



Genus LXI. — Blemus, Ziegler.. 



Palpi, external maxillary and labial with the last joint conic acute, the penul- 

 timate joint of the former distinct, obconic, equal in length with the last : 

 internal maxillary slender: labrum transverse, arcuate, slightly notched: 

 ■mandibles acute, rather elongate: mentum notched anteriorly, the centre 

 shghtly produced. Antennw with the basal joint naked : head large, oblong- 

 ovate: thorax cordate-truncate, hinder angles very acute: body elongate, 

 rather depressed: elytra entire, as long as the body: wings two, ample: 

 anterior tarsi of the males with dilated joints. 



The species of this genus are all scarce in Britain; they may 

 be known from the Trechi by their elongate depressed body, by 

 the relative length of the terminal joints of the external maxillary 

 palpi, and by the form of the thorax, which is much attenuated 

 posteriorly, and has the hinder angles very acute, and somewhat 

 recurved. 



Sp. 1. paludosus. Nigro-piceus, nitidus, capite fusco, elytris punctata striatis, 

 antennis pedibusque testaceis. (Long. corp. 3 lin.) 



Be. paludosum. Gyllenhal. — Bl. paludosus. Steph. Catal. p. 35. No. 332. 



The largest species of the genus, and differing a little from the others in form, 

 the elytra being rather broader in proportion : it is of a glossy pitchy-black, 

 inclining to castaneous ; the head rather dusky, with a deep bent impression 

 on each side anteriorly : thorax a little convex, smooth pitchy-black, with a 

 deep dorsal channel, and a deep transverse fovea on each side at the base : 

 elytra dark chesnut, with the disc interiorly punctate-striated, exteriorly more 

 obscurely striated ; at the base on the margin are a few impressions : body 

 beneath glossy pitchy-black ; the abdomen posteriorly pale ferruginous : legs 

 pale testaceous : antenna and palpi ferruginous. 



Var. 6 ? Broader, and of an unifonn pale testaceous colour, with the elytra more 



