SCAUITID^. — DISTOMUS. 43 



Cl. seriea. Ziegler. — Dy. seneus. Steph. Catal. No. 53. 



Very similar to Dy. nitidus, but generally much smaller : it is of a deeper and 

 less brilliant bronze : the longitudinal thoracic line is less impressed, and the 

 two denticulations on the anterior tibiae are more evident. 



This appears to be a London species : it was found abundantly 

 in a dry bank near Walham-green, in June last, by Mr. West- 

 wood. 



Sp. 8. tristis. Piceo-niger, tibiis anticis aplce bispinosis, extrorsum 

 ohsoletissime hidenticulatis, elytris ovatis, tenuiter striato-punc- 

 tatis. (Long. corp. If lin.) 



Dy. tristis. ^? MS S.— Steph. Catal. No. 54. 



Closely allied to the last, but of a deep, not very glossy, black : the impressed 

 longitudinal hne on the thorax is very obsolete, and the striations on the elytra 

 are less evident than in the other species, and become very indistinct towards 

 the tip : the elytra are somewhat piceous at the extremity, and are scarcely 

 shining : the anterior tibite are very obsoletely denticulated externally, and the 

 legs are browner than in the other species. 



I have noticed an insect, which from thg colour appears to be 

 the same as the present, in collections by the MSS. name which is 

 employed above : it is the only species of the genus, exclusive of 

 Dy. gibbus, which I have ever captured, having once taken a pair 

 near Hertford. Mr. Ingpen found one on Wimbledon-common. 



Sp. 9. gibbus. Supra nigro-ceneus ; tibiis anticis apice bispinosis, 

 exti-orsum obsolete bidenliculatis ; elyt7'is ovatis, subglobosis, striato- 

 punctatis,striis apice obsoletis. (Long. corp. 1^ — 1|- lin.) 



Sc. gibbus. Fabricius. — Dy. gibbus. Steph. Catal. No. 55. 



The smallest species of the genus : entirely of a bronzed black : the thorax is 

 shorter, more globose, and has a less evident longitudinal line than Dy. tho- 

 racicus : the elytra are stouter, broader, more oval and convex ; the striae are 

 strongly marked and deeply punctate, but are nearly obUterated on the outer 

 margin and towards the extremity of the elytra: the under parts of the body 

 resemble those of Dy. thoracicus; but the external denticulations on the tibise 

 are more distinct. 



This is a very common species in the neighbourhood of London, 

 especially in Battersea-fields. 



Genus XV. — Distomus, Leach. 



X«/>r^/»^ slightly notched: labial palpi rather short, the terminal joints cylin- 

 dric : niaiifiihles conic, a little curved, slightly dentate; antenncc filiform, the 



