168 Mr. T. Vernon Wollaston on the Evphorhia-infesting 



Habitat Lanzarotam, duobus speciminibus a meipso in trunco 

 Euphorbise emortuo deprehensis. 



When preparing my Paper on the " Aphanarthra of the Canary 

 Islands " I overlooked the present species, having (without accu- 

 rate examination) regarded the two specimens from which the 

 above diagnosis has been compiled as merely immature ones of 

 the A. bicincium. A more careful inspection of them, however, 

 shows that (amongst other characters) they have the extreme 

 apex of their pronotum (which is not at all thickened or recurved) 

 armed with about four tubercles, of which the inner pair are 

 comparatively elongated, acute, somewhat spiniform, and sub- 

 approximated. Indeed in this respect they approach the A. Jubce ; 

 nevertheless, apart from the different shape of these minute pro- 

 jections (the inner two of which are relatively longer, more por- 

 rected, and placed closer together), the A. armatum may imme- 

 diately be known from that insect by its very much sinaller size, 

 and by its considerably shorter, finer and more decumbent pube- 

 scence ; by its alutaceous prothorax (which is rather acuter, and 

 less decidedly diluted, at its extreme apex) ; by its entire punc- 

 tuation being closer and less coarse ; and by its elytra (so far 

 indeed as I am able to judge from the two examples now before 

 me) being ornamented by merely a large transverse pallid fascia 

 immediately behind their base. It was taken by myself in Lan- 

 zarote (I believe in the vicinity of Haria), along with the A. Jubce, 

 affine and bicincium. 



21. Aj)hanarthrum canariense,* Woll. 



A. latiusculum, fusco-nigrum, pilis brevissimis parce vestitum ; 

 prothorace subconvexo alutaceo granulato, antice producto 

 lurido necnon ad apicem ipsum acuminato incrassato (fere 

 subrecurvo) ; elytris dense seriatim punctatis et transversim 

 rugulosis, brunneo-testaceis, fascia dentata magn^ media 

 nigra (plus minus suffusd) ornatis. 



Long. Corp. lin. |— |. 



Aphanarthriim canariense, Woll., Ann. of Nat. Hist. (Ser. 3), v. 

 164 (1860). 



Habitat in ramis putridis Euph. canariens'is in ins. Canaria, 

 Teneriffa, Gomera, Palma et Hierro, vulgare. 



The just perceptibly broader and shorter outline of this species 

 (in proportion to its size), together with its extremely short pu- 

 bescence, its dense (but not very coarse) elytral sculpture, and 

 the much acuminated apex of its prothorax, which is very percep- 

 tibly thickened (with a slight tendency to be recurved) at its 



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