186 Mr. T. Vernon WoUaston on the Euphorbia-infesting 



rather more elongated. The only examples which have come 

 under my observation were captured by myself, in company with 

 the H. canariensis, from out of the putrid stems of the Ev/ph. ca- 

 nariensis^ during February, 1858, on the hills to the north of San 

 Sebastian in Gomera. 



43. Homalota cacti, n. sp. 

 H. omnino ut in H. piitrescens, sed prothorace paulo angustiore, 

 postice vix minus rotundato, necnon antennis paulo brevi- 

 oribus. 

 Long. Corp. lin. Ij. 



Habitat ins. Teneriffam et Palmam, in ilia in truncis Euph. ca- 

 nariensis putridis in montibus supra Sanctam Crucem, sed in hac 

 in foliis Cacti opuntice marcidis deprehensa. 



The present Homalota is very closely related to the last one — 

 with which, indeed, unless the specimens be in good condition 

 and with their limbs properly set-out, it may be easily confounded. 

 Nevertheless, a close inspection will sufficiently bring to light its 

 true characters — which consist, however, merely in its narrower 

 prothorax (which is not quite so wide as the elytra, and rather 

 less regularly rounded behind, than is the case in the H. putres- 

 cens), and in its antennae being just perceptibly darker and 

 shorter. So far as I have observed hitherto, it would seem, in its 

 habits, to be more partial to the rotting, sodden leaves of the 

 Cactus opmtlia than to the stems of the Euphorbias ; nevertheless, 

 since I have taken it from out of the E. canariensis, on the 

 mountains above Santa Cruz of TenerifFe, it ought scarcely, per- 

 haps, to be omitted from this Paper. In the putrid leaves, how- 

 ever, of the prickly-pear it is at times far more abundant — under 

 which circumstances I have observed it in considerable profusion 

 in the Banda of Palma, during my residence there with the Rev. 

 R, T. Lowe at the beginning of June, 1858. 



44. Homalota coriaria, Kraatz. 



H. sublinearis, nigra, nitida, minutissime pnnctulata, breviter 

 pubescens ; prothorace vix dilutiore, transverso, breviusculo, 

 fovea medid abbreviata plus minus obscura impresso ; elytris 

 fusco-piceis, versus angulos posticos externos vix obscuriori- 

 bus ; antennis breviusculis, crassiusculis, ad basin piceis ; 

 pedibus dilute testaceis. 



Long. Corp. lin. 1 — 1 1. 





