CANARIAN COLEOPTERA. 239 



379. Casopus subcalvus. 



Casapus subcalvus, WolL, Trans. Ent. Soc. Lond. (3rd series) i. 200. 

 pi. viii. f. 3 (1862). 



Habitat in ins. Hierro, hand proeul ab oppido Valverde, mense 

 Febniario a.d. 1858, sub lapidibiis parce repertus. 



The entire, or almost entire, freedom of the elytra of this Casopus 

 from erect hairs (but which are nevertheless studded with a very 

 minute decumbent pile), combined with the immensely developed 

 basal joint of its hinder male-feet, will, apart from numerous other 

 characters of secondary importance, at once distinguish it. So far as 

 observed hitherto, it is confined to the island of Hierro — where, in 

 February of 1858, it was captured, very sparingly, by Mr. Gray and 

 myself, from beneath stones, about a mile to the north-westward of 

 Valverde. It must be regarded, therefore, when the remoteness of 

 its habitat is taken into account, as one of the rarest of the Canarian 

 Coleoptera. 



Genus 156. DIGNOMUS. 

 WoUaston, Trans. Ent. Soc. Lond. (3rd series) i. 201 (1862). 



380. Dignomus gracilipes. 



Dignomus gracilipes, Woll., Trans. Ent. Soc. Lond. (3rd series) i. 202. 

 pi. viii. f. 4 (1862). 



Habitat Lanzarotam et Fuerteventuram, in stercore arido (bovino, 

 equino, camelino, nee humano) tempore vernali, rarissimus. 



Of this singular insect (which has all the aspect prima facie of a 

 parallel, slender, and ciu'iously mottled Ptinus) I have given the full 

 structural and diagnostic details in my Paper on the Canarian Ptinidce. 

 It seems to be of excessive rarity, and to be peculiar to Lanzarote 

 and Fuerteventura — where, during the spring of 1859, 1 took it, very 

 sparingly, in the low sandy districts, near Arrecife of the former and 

 Corralejo in the extreme north of the latter. In its habits it is (for 

 a member of the present Family) very anomalous — occurring only, 

 so far as I have observed hitherto, in the dried dung of horses, oxen, 

 and camels, in company with the Notiomimus Jimicola (of the Ano- 

 biadce), the beautiful Corynetes fimetarius (of the Clericke), and sun- 

 dry other insects of normcdly stercoracious propensities. 



Genus 157. PTINUS. 

 Linnaeus, Syst. Nat. ii. 565 (1767). 



381. Ptinus testaceus. 



Ptinus testaceus, Oliv., Ent. ix. 8 (1790). 

 advena, Woll, Lis. Mad. 261 (1854). 



