102 CANARIAN COLEOPTEKA. 



165. Calyptomerus dubius. 



Scaphidium dubium, 3Ishm, Ent. Brit. i. 234 (1802). 

 Clambus enshanieiLsis (Westw.), Steph., III. Brit. Ent. ii. 184 (1829). 

 Comazus eushamensiS; Fairm. et Lab., Faun. Fran<;. 328 (1854). 

 Calyptomerus dubius, Wall, Cat. Mad. Col. 147 (1857). 



Hahitat Teneriffam, rarissime; ad Agua Mansa lectus. 



The C. duhius, which is widely spread over Europe and which 

 occurs also at Madeira, is apparently very rare in these islands, — the 

 only two Canarian specimens which I have seen having been taken 

 by myself at the Agua Mansa of Teneriffe. 



Fam. 11. PTILIAD^. 



Genus 67. ACROTEICHIS. 

 Motschulsky, Bull, de Moscou, xxi. 569 [script. Acratrichis] (1848). 



166. Acrotrichis fucicola. 



Trichopterj'x fucicola, Allibcrt, Bev. Zool. 52 (1844). 



, Fairtn. et Lab., Fami. Franc;. 332 (1854). 



mollis, Haliday, Nat. Hist. Rev. ii. {Proc.) 123 (1855). 



Hahitat sub fucis, per oras maritimas Lanzarota^, Fuerteventurae 

 et Teneriffae. 



The comparatively flattened body and oblong outline of the A. fu- 

 cicola, in conjunction with its very pubescent surface (which, on ac- 

 count of the whitish decumbent pile with which it is clothed, has a 

 somewhat silvery appearance), the diluted apex of its elytra and 

 hinder prothoracic angles (the former of which are separately rounded 

 off at their inner or sutural angle), the distinctly margined base of 

 its pronotum, and its rather elongated antenna? (the club of which is 

 excessively lax), will at once characterize it. Through the kindness 

 of M. AUard, of Paris, I have received for comparison a specimen of 

 the true A. fucicola from La Teste, which agrees precisely with the 

 Canarian ones. It is identical with the A. mollis of Haliday ; of 

 which I also possess examples, taken on the sea-shore near Dublin. 

 It is a tolerably common insect, just above high-water mark, on the 

 sandy beaches of Lanzarote and Fuerteventura, — occurring beneath 

 Alga3 and other marine rejectamenta. In the latter of those islands 

 it was also found (near Puerto de Cabras) by Mr. Gray : and two 

 specimens are now before me which were taken by Dr. Crotch in 

 Teneritfe. 



