APPENDIX. 



393 



Oblons-ovate, black, smooth ; crown behind, and thorax, with the antennae 

 and legs ferruginous ; elytra more or less punctate. 



" Boroughb ridge, Yorkshire; Cambridge in great plenty, Berwick-upon- 

 Tweed, and Copford, Essex." — C. C. Babington, Esq. 



Page 61. Sp 31 a. Hyduop. xanthopus. Steph. Noinen. 2d edit. col. 16 — 

 Lotus subdepressus, nigeVj pubescens, thoracis elytrorumque marginibus, his 

 basi apiceque ochreo-Jlavis, pedibus 7-vfo-Jlavescentibus, femoribus intermediis 

 cingulo fused. (Long. corp. 2 lin.) 



Broad; somewhat depressed; black, pubescent; thorax with its margins 

 pale ochreous; elytra finely punctured, the base with a broad waved 

 ochreous fascia, and the lateral margin of the same hue, the colours 

 extending in an irregular patch upon the hinder portion of the disc ; legs 

 reddish-yellow ; the intermediate femora with a brown belt. 



Found occasionally near London. 



Page 65. Genus COLYMBETES, Clairville. 



This genus has recently been broken up into several by continental writers ; 

 but I think unnecessarily : I shall therefore only indicate some leading cha- 

 racters of the new genera, and refer to the second edition of my Nomen- 

 clature for the re-arrangement of the species in accordance therewith, 

 describing such new ones as I have indicated therein in their respective 

 places. 



Cymatopterus, Eschscholtz. 



Labial palpi with the second joint evidently longer than the third ; posterior 

 legs in the males on both sides, in the females above only, ciliated; claivs 

 unequal, the upper one fixed, the lower thrice as short; body oblong oval, 

 somewhat depressed; elytra generally striated transversely : stature large; 

 colours dark. 



Raxtus, Eschscholtz. 



Palpi, legs, and claws, as in the preceding; body scarcely convex; elytra never 

 striated transversely, but sometimes a little aciculated in the females : 

 stature moderate ; thorax generally pale ; elytra dark. 



Leiopterus, Eschscholtz. 



Labial palpi with the third joint scarcely shorter than the second : posterior 

 legs of the males ciliated on both sides, and of the females above only ; claws 

 equal and moveable; males with three basal joints of the anterior tarsi 

 dilated, depressed, with rather large acetabuli beneath ; posterior tarsi with 

 the four basal joints ciliated beneath: stature small, elongate; elytra 

 smooth. 



Sp. 10. CoLYMBETKS (Leiopterus') arcticus — I have several specimens from 

 Scotland of this distinct species. 



Agadus, Erichson. 



Palpi, legs, and claws, as in Leiopterus ; males with the three basal joints of 

 Makdibulata, Vol. V., 31.st March, 1I]35. 2 e 



