78 :mandibulata. — coleoptf.ra. 



large, and nearly connivent in front, but in the females they are 

 smaller and remote. 



Sp. 1. oculatus. Niger punctatissimus, tenuitlr puhcscens, aniennis jiedihus 

 elytrisque testaceo-fuscis, his intcrdum ad apiccm ohscurioribus. (Long. corp. 

 1— IJ- lin.) 



An. oculatus. Paykull.—M. nigricoUis. Steph. Catal. 254.. No. 2530.— Xy. 

 oculatus. Curtis, vii. pL 299- 



Black, very finely and thickly punctured, and clothed with a delicate flaves- 

 cent pubescence : thorax with a transverse impression near the base : 

 elytra castaneous, rather coarsely and irregularly punctured : mouth, 

 antennae, and lour anterior legs, pale ferruginous ; posterior legs castaneous. 



Taken near Windsor in July off willows, by Messrs. J. H. Gries- 

 bach and Waterhouse, from whom I received my specimens : it has 

 also occurred near London and in Suffolk. 



Family LXV.— SCYDM^NIDiE, Leach. 



Mandibles acute : palpi maxillary longer than the head, thicker towards the 

 apex; antenncB 11-jointed, distinctly incrassated at the tip: body oblong, 

 the anterior half generally narrowest ; abdomen ovate, convex, embraced on 

 its sides by the elytra, these last connate, or free : head ovate, nutant, or 

 porrect, separated by a short interval from the thorax, w^hich is generally 

 subovate-truncate, or subcylindric: Ze^s slender jjemora sometimes abruptly 

 clavate ; tihice simple ; tarsi pentamerous. 



In my account of the contents of this family, and of the Psela- 

 phidae, I have availed myself of the meritorious and interesting 

 monograph thereon by Mr. Denny, by means of whose accurate 

 figures the student may readily distinguish such species of these 

 minute insects as he has represented. They are usually found in 



tSp. 2. pygmaus. Fusco-testaceus, evident er punctaius, tenue. pubescens, antennis 



elytris pedibusque dilutioribus. 

 Ce. pygmaeus. De Geer, I. v. 80. pi. 4. /. 5. — Xy. pygmaeus. Curtis, fo. 299. 



Fusco-testaceous, evidently punctured, and finely pubescent: antennae, elytra, 

 and legs, paler : thorax short, transversely impressed : male with the 

 antennae elongate and deeply serrate; female with the antennae short, the 

 head fuscous, and the thorax obsoletely impressed. 



This insect is not the Lytta Boleti of Marsham ; I do not believe that it is 

 indigenous. 



