170 Mr. T.Vernon Wollaston on the Euphorbia-infesting 



Varial lineis maculisque plus minus fractis, disjunctis, rarius 



subobsoletis. 

 Long. Corp. lin. | — 1. 

 Aphanarlhrum bicolor, Woll., Ann. of Nat. Hist. (Ser. 3), v. 



165 et 362 (1860). 

 Habitat in ins. TenerifFa, Palma et Hierro, in ramis Euphor- 

 biarum emortuarum (prsecipue E. piscatorice), sat frequens. 



A most distinct and beautiful Aphanarthrum, readily known by 

 its pale whitish-testaceous hue, diaphanous (or subhyaline), slightly 

 shining, almost unpubescent, and most lightly punctured surface, 

 and by the quantity of dark patches and broken fasciae with which 

 it is ornamented. It occurs in the dead branches of (I believe 

 principally) the Euph. piscatoria, under which circumstances it 

 was taken by myself in TenerifFe and Palma, and by Mr. Gray 

 and myself in Hierro. I have likewise captured it from out of 

 the stems of the same plant in Madeira ; where, however, the 

 specimens have their elytra a trifle more distinctly punctured, and 

 the interstices somewhat more roughly alutaceous, or shagreened. 



24. Aphaimrthrum affine* Woll. 



^, angustulum, fusco-nigrum, pilis suberectis sat dense vesti- 

 tum; prothorace alutaceo punctato granulato, antice pro- 

 ducto lurido necnon ad apicern ipsum leviter acuminato 

 incrassato ; elytris seriatim punctatis, testaceis, fasciis duabus 

 profunde dentatis nigris (und sc. magna in medio duplici et 

 altera angustiore subpostica) ornatis. 



Long. Corp. lin. f — vix |-. 



Aphanarthrum offine, Woll., Ann. of Nat. Hist. (Ser. 3), v. 166 

 (1860). 



Habitat in ramis emortuis Euphorbiarum in ins. Lanzarota, 

 Fuerteventura et Canaria, hinc inde frequens. 



This species and the following one are a good deal allied. The 

 A. affine, however, is rather larger and a little less densely pu- 

 bescentj and its elytra are somewhat more parallel and less closely 

 sculptured, the punctures being more evidently arranged in rows 

 than is the case with the A. piscatorium. Its elytral fasciae, also, 

 are much more distinct ; and the anterior one is more decidedly 

 double in its central region, like that of the A. Jubce, bicolor and 

 glabrum. It was taken abundantly, by Mr. Gray and myself, out 

 of the Euph. balsamifera, in the north of Lanzarote, and by myself 



