AGLYCYDERID7E. 339 



Fam. 53. ANTHRIBID^, 



Genus 281. XENORCHESTES. 

 Wollaston, Ins. Mad 417 (1854). 



938. Xenorchestes saltitans. 



Xenorchestes saltitans, Wdl, Ins. Mad. 418, tab. viii. f. 8 (1854). 

 , Id., Cat. Mad. Col 122 (1857). 



Habitat Maderenses (Mad), sub cortice laxo in lauretis humidis edi- 

 tioribus rarissimus. 



Peculiar to Madeira proper, where it is extremely rare, occurring 

 for the most part beneath loosened bark in the damp laurel- woods 

 of intermediate and lofty elevations. It is one of the most extra- 

 ordinary of the Atlantic Coleoptera, though, in its subsaltatorial 

 habits and general structure, it has an evident affinity with the Eu- 

 ropean genus Ohoraf/us. 



Fam. 54. AGLYCYDERIDJE. 



Genus 282. AGLYCYDERES. 

 Westwood, in Proc. Ent. Soc. Lond. clxxix (1863). 



939. Aglycyderes setifer. 



Aglycvderes setifer, Westw., loc. tit. (1863). 

 , Woll., Cat. Can. Col. 385 (1864). 



Habitat Canarienses (ins. omnes), vel in caulibus Euphorbiarum 

 putridis vel sub cortice Ficoram arido laxo hinc inde congregans. 



A most anomalous little beetle which has been taken in the whole 

 seven islands of the Canarian archipelago. I feel sure that it is 

 attached exclusively to the Euphorbias in at all events its earlier 

 states ; though, unlike most of the Euphorbia-mfestmg species, the 

 perfect insect is found in various situations particularly beneath 

 the bark of old fig-trees, where I have observed it in profusion. 

 But in all such instances the trees were in the immediate vicinity of 

 Euphorbias ; whilst the fact of its having been captured abundantly, 

 both by myself and the Messrs. Crotch, actually within the putrid 

 stalks of the E. canariensis would go far to establish its mode of life. 

 I have met with it in Lanzarote, Fuerteventura (or rather on the 

 rock of Lobos, off the extreme north of that island), Grand Canary, 

 Teneriffe, and Palma ; whilst in Gomera and Hierro it was obtained 

 by the Messrs. Crotch. 



z 2 



