Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 219 



elytra), and clothed all over (sparingly on the head and proLho- 

 rax, but thickly on the elytra) with decumbent paler hairs. 

 Head large, and with two very deep, curved, longitudinal fur- 

 rows down the forehead; eyes depressed and verv minute. 

 Prothorax narrow and subcordate, finely margined, and with the 

 extreme posterior angles almost right" angle's ; with a distinct 

 dorsal channel, and with a small fo'vea on either side behind. 

 Scutellum rather large, and posteriorly acute. Elytra somewhat 

 parallel-elliptic, and unstriated ; each of them separately 

 rounded ofi" at the apex, and with two shallow impressions on 

 Its disk. Antenna and legs rather paler than the rest of the 

 surface, and (particularly the former) elongated and slender. 



The present very interesting addition to the fauna uas detected 

 by myself on the 16th December, 1858, in the muddy crevices 

 ot the low sea-bank which terminates the marshy piece of ground 

 at the mouth of the Sao Vicente river (in the north of Madeira 

 proper), adjoining the small chapel-rock. It was very active 

 and gregarious; and I obtained a few specimens, likewise, from 

 beneath the shingle and stones which must have been almost 

 washed by the sea-water at high tides. It has all the habits, 

 therefore, of the A. marinus of higher latitudes, from which' 

 however, in its specific details, it is abundantly distinct. Thus' 

 its darker, alutaceous, nearly opake, punctured (although lightly 

 so) and pubescent surface, in conjunction with its posteriorly 

 acuter scutellum, narrower prothorax, and less parallel (or more 

 elliptic) elytra, will readily separate it from that insect. Its 

 antennae, too, are very much longer and less robust, with their 

 joints (particularly the terminal one) altogether longer and 

 slenderer and more loosely connected intei^ se (or, as it were, 

 perfohated). In its essential characters, however, it is a true 

 Aepys (which has been also confirmed by mv friend Dr. H. 

 Schaum of Berlin),— its minute fiattcned eves, separately- 

 rounded, shortened elytra, and curved frontal furrows, apart from 

 the structure of its palpi, labium, and feet, as well as its small 

 size, soft texture, pallid hue, apterous body, general contour and 

 submarine mode of life, at once assigning it to that genus. 



Fani. Silphidse. 



Genus Catops. 



Paykull, Ins. Suec. i. 342 (1798). 



(kit()j)S Muirayi, n. sp. 



C. subellipticus, piceo-niger, minus convexus ; prothorace postice 

 smuato; elytris apice leviter acumiiiatis, singulo stria suturali 



15* 



