328 Additions to the List 



verse elevated line between the antennae, and two oblique longitudinal 

 punctate foveae between the eyes ,• thorax quadrate, narrowed posteriorly, 

 with all the angles rounded, lateral and posterior margins elevated, 

 transversely wrinkled, with an abbreviated dorsal channel ; elytra stri- 

 ated, striae obsoletely punctate, suture dark, the colour widening toward 

 the apex into a posteriorly rounded dark spot ; under side pale ferru- 

 ginous, abdomen darker ; legs and antennae pale. 



Probably D. longiceps of Dejean, but certainly distinct 

 from D. linearis ; differing in the space between the eyes not 

 being longitudinally wrinkled, as in that insect, the more 

 quadrate thorax, and the wedge-shaped posteriorly rounded 

 sutural spot on the elytra ; the form, also, is much more elon- 

 gate and linear. 



Taken in Madingley Wood, Cambridgeshire, from moss, 

 in the spring of 1831 ; and in the boats which bring the 

 sedge *, from the fens, to Cambridge, in March, 1832. 



2. D. QUADRisiGNA^TUS Dej. Coleop. i. 236. 



Pallidus, capite nigro, thorace quadrato, rufo, elytris basi, sutura, angulis 

 humeralibus, fasciaque postica fuscis, subtus piceus. (Long, corporis 

 2 lin.) 



The same form as D. 4-maculatus, but much smaller. Head black '; tho- 

 rax quadrate, rufo-ferruginous, with the margins paler ; elytra pale yellow, 

 with, a little behind the middle, a broad transverse brown fascia, dilated 

 posteriorly on the outer margin, and connected by the suture with a tri- 

 angular spot of the same colour at the base, the exterior angles of which 

 are a little produced, so as to form an elongated patch on each side of 

 the elytra j apex of the suture pale ; abdomen piceous beneath, with the 

 thorax paler ; legs and antennae pale. 



Differs from D. sigraa, under which name it has stood in 

 my collection, by having the triangular spot, &c., at the base 

 of the less faintly striate elytra, the fascia not dentate ante- 

 riorly, and the under side piceous. Taken in Madingley 

 Wood, in March, 1831. 



3. Hydro'porus jugula'ris mihi. 



Oblongo-ovatus, niger, glaber, jugulo f, antennis pedibusque ferrugineis. 

 (Long. Corp. [?] lin.) 



Oblong-ovate, black, glabrous j head with the hinder margin of the vertex 

 and the throat ferruginous j thorax with the lateral margins very ob- 

 scurely ferruginous ,• elytra black, thickly but finely punctate through- 



* It is worth stating, that the sedge so extensively used in Cam- 

 bridgeshire for thatching, heating ovens, and lighting fires, is mainly com- 

 posed of the herbage of Cladium ilfariscus Eng. Bot.y t. 950. ; that of Carex 

 riparia, paludosa, and, doubtless, other species, being blended with it in 

 small proportions. Smith's English Flora (vol.i. p. 36.) represents Cladium 

 ilfariscus as " not common : " it is, notwithstanding, no rarity in the fens 

 of Cambridgeshire. The dried herbage, doubled into cylindrical wisps of 

 6 in. or 8 in. long, and 3 in. in diameter, is generally used in the town of 

 Cambridge for lighting fires, in the manner the bundles of split fir-wood are 

 used in London. '—J. D. 



■ f Jugulum, the throat ; " that part of the surface which lies between the 

 temples." (Kirby and Spence's Int. to Entom.j iii. 366.) 



