Rev. J. F. Dawson on new species of Coleoptera. 213 



XXIII. — Descriptions of five new species of Coleoptei'a. 

 By the Rev. J. F. Dawson, LL'.B. 



Section GEODEPHAGA. 



Fam. Harpalid.Ej MacLeay. 



Genus Amara, Bon. 



1. Amara Vectensis. Oblonga convexa senea nitida, iuterdum cse- 

 ruleo-nigra : elytris punctato-striatis : antennarum articulis tribus 

 primis rufo-testaceis : tibiis tarsisque rufo-ferrugineis. Long. 4f 

 lin. 



Oblong convex, body beneath shining black : head, thorax and 

 elytra brassy brown, sometimes greenish brass, rarely blue-black, 

 not always concolorous : thorax with an oblong deep impression 

 on each side at the base, midway between the hinder angles and 

 the dorsal furrow : elytra regularly and evenly striate, the striae 

 deepening towards the apex and finely punctured for about two- 

 thirds their length, the punctures gradually diminishing behind 

 the middle and totally ceasing when the strise begin to deepen : 

 within the outer margin an irregular line of deep impressions 

 most numerous behind the middle : thighs pitchy black : tibiae 

 and tarsi rusty red or pitchy testaceous ; anterior tibiae with the 

 spine at the apex tricuspid, the middle mucro being longest and 

 stoutest and slightly curved, the inner one smallest : first, second, 

 third and basal half of the fourth joints of the antennae red, the 

 rest fuscous black. 



Originally taken at Ryde, Isle of Wight, and referred incor- 

 rectly to tricuspidata, Dej. We are indebted to Dr. Schaum for 

 correcting this error ; and his opinion has since been confirmed 

 by other continental entomologists, who have pronounced it to 

 be an undescribed species. I have taken it annually for some 

 years past in the north side of the Isle of Wight, but always 

 sparingly, except on one occasion, when in company with my 

 friend ]\Ir. Wollaston (April 1846), it occurred plentifully among 

 refuse left by a flood at Ryde. I have not seen it since. As the 

 species requires a name, I have given it one commemorative of 

 the locality in which it is (I believe exclusively) found. 



Genus Trechus, Clairville. 



2. Trechus incilis. Subtus niger, abdominis apice testaceo, supra 

 nigro-piceus, thorace cordate, convexo, postice angustato, utrinque 

 foveolato, angulis posticis incilis, acutis : elytris oblongo-ovatis, 

 striis quatuor dorsalibus abbreviatis in singula impressis : antenna- 

 rum 2, 3 et 4 articulis nigris, reliquis, palpis pedibusque testaceis. 

 Long. 2^ lin. 



Oblong ovate, dusky pitchy : head with two oblong frontal 

 impressions : thorax heart-shaped, disc convex, broad in front. 



