AlELANDRYAD^. ABDERA. 37 



corapressed; labial very short: head rounded, deflexed: eyes reniform : 

 thorax slightly elongate, contracted towards the base, with the hinder angles 

 acute, and with an oblique carina : body elongate, subcylindric : legs mode- 

 rate; tibia with very short spurs; tarsi slender, the penultimate joint 

 bilobed. 



This genus was first noticed as British by Millard, in his " Out- 

 lines of British Entomology" (1821), under the name Ulodes, as 

 referred to in my Catalogue ; it differs from Abdera by having the 

 second joint of the antennae shorter than the third, the terminal 

 joint of the palpi of dissimilar form, the thorax also dissimilar, being 

 contracted behind, with the posterior angles acute, and furnished with 

 a carina, as in several of the Elateridae. 



Sp. 1. Quercinus. Plate xxiv. J". 5. — Rufo-piceus, pibescens, thorace nigri-' 

 cante postice foveolato, elytris ferrugineis, arcu baseos, fascia posticd apiceque 

 nigris. (Long. corp. 3 — 3§ lin.) 



Hy. Quercinus. Paykull. — Steph. Catal. 247. No. 2459, 



Rufo-piceous, pubescent : head pitchy-black, with an obsolete longitudinal 

 furrow on the crown : mouth and palpi ferruginous : thorax entirely pitchy- 

 black, with shining pubescence, and a deep fovea on each side near the 

 hinder angle, adjoining to which is an oblique elevated carina : elytra rusty- 

 testaceous, very thickly rugose-punctate, with an irregvilar recurved arch at 

 the base, a broad, common, sinuated fascia, behind the middle and not touch- 

 ing the margin, and the apex, more or less, black: legs pale rufescent; 

 antennae ferruginous. 



This insect is said by Rhen to make its appearance during wet and 

 tempestuous weather ; a fact that seems to be confirmed by stating 

 that the only two examples I have been present at the capture of 

 were taken under such circumstances ; one specimen being found, in 

 June, 1819, at Darenth (not Colneyhatch, as stated by Mr. Curtis), 

 and the other in the Robin-Hood lane leading to Coombe, in the 

 following week ; from the latter the figure has been taken. MacLeay 

 has observed the same fact, and has taken the insect near Godstone. 

 It has also occurred near Bristol. " Wood Ditton, Park-wood, 

 May, 1831."— C. C. Bahington, Esq. 



Genus CCCCLI. — Abdiiiiia mihi. 



Antenna; rather shorter than the thorax, submoniliform, slightly increasing iu 

 thickness to the apex, basal joint moderate, second and third of equal length, 

 rather slender, obconic, apical joint ovate-conic. Palpi iincqupl; nunillary 

 with the basal joint subovatu; labial with the last joint slender: /teat/ small. 



