94 Mr. T. V. WoUaston on certain Coleoptera 



C. vidua of Dejean, from Senegal, — a species closely allied to 

 the j^gyptiactty but (not to mention smaller differences) a little 

 more expanded posteriorly, of a rather more lively greenish- 

 metallic hue, and with its elytral patches a trifle more developed. 

 I do not perceive, however, in the Cape de Verde specimens any 

 indication of the rufo-testaceous tint which Dejean describes as 

 colouring the femora (and base of the tibiae) beneath : the tro- 

 chanters are all of them brightly rufescent, but the thighs are of 

 an undiluted brassy-green throughout. Nevertheless so small a 

 distinction as this may perhaps be merely indicative of a local 

 variety peculiar to these islands. I have four examples of it now 

 before me, from the collection of Mr. Fry, by whom they were 

 taken at St. Vincent " in a dry water-course, on sand.*' 



Fam. Carabidae. 

 Genus Dromius. 

 Bonelli, Observat. Ent. i. tab. synopt. (1813). 

 The insect described below has all the prima-facie aspect, in 

 its general contour and pale subhumeral patch, of a true Meta- 

 bletus, appearing to associate itself with such species as the 

 obscuroguttatus and patruelis; but its prothorax is broader and 

 more truncated behind, and the terminal joint of its palpi is 

 slenderer ; whilst, on carefully dissecting it, I find that its men- 

 tum is perfectly toothless. Its paraglossse may possibly be a 

 little more on the Metabletus-tyYte than on that of the true 

 Dromii, seeming, in my specimen, a trifle to surpass the (apically 

 subtruncate) ligula in length, as also to be more rounded and 

 not quite in a continuous curve with the latter ; nevertheless, be 

 this as it may, its edentate mentum will completely remove it 

 from the Metableti; whilst from Blechrus its tongue is, at any 

 rate, very distinct, — the ligula of the Blechri being smaller and 

 more robust, cordate (or triangularly emarginate) anteriorly, 

 and with the paraglossse large and confluent in front of it. Its 

 penultimate tarsal joint is entire, and its claws are rather strongly 

 pectinated. 



3. Dromius submaculatus, n. sp. 



D. senescenti-niger, subnitidus, subtilissime transversim reticulatus ; 

 prothorace transverse, basi subtruncate, angulis posticis paulo 

 recurvis ; elytris obsolete substriatis, striis pestice versus suturam 

 distinctioribus, macula obscura sufFusa subhumerali rufescente 

 ornatis ; antennis pedibusque breviusculis, gracilibus, dilute tes- 

 taceis. 



Long. cerp. lin. vix \\. 



The very delicately transversely -vei\cv\?iiQ surface of this little 

 Dromius (in which it differs from the Metableti of the obscuro- 



