INSECTA MADERENSIA. 4'15 



the subnigiilose and delicately punctulatcd interstices of its (more perceptibly 

 ovate and apically subdebiscent) elytra, and its rather longer and robuster limbs, 

 will serve to separate it from the A. rotimdipenne. It is apparently extremely 

 rare (or at any rate local), the only spot in which I have hitherto observed it being 

 in the north of the island, at Santa Anna,— where, during May and June of 1850, 

 I captm-ed many specimens from off the Eqtmetumfuv'mUle in a boggy piece of 

 sroimd on the left-hand side of the road which leads from the Quinta of Senhor 

 Louiz Acciaioly down to the sea. Although I searched diUgently in similar spots, 

 I did not succeed in procuring it elsewhere. 



319. Apion rotimdipenne, Wall. (Tab. VIII. flg. 6.) 

 A. purpurascenti- vel subsenescenti-nigmm subopacum et vix pubescens, rostro longiusculo gracili, 

 protborace miuuto subcylindrico profunde et sat rugose punctato, elytris vel subgloboso-ovatis 

 vel ovatis, profunde crenato-striatis et paulo magis metallico-micantibus, iuterstitiis vix punc- 

 tulatis, antennis pedibusque gracilibus nigris. 

 Long. Corp. lin. 1^-ly- 



Habitat in montibus Maderse, prssertim super folia Vicice conspicuce, Lowe, a vere novo usque ad 

 autumnum nou infrequens. 



A. less shining and metallic tban the A. Wollastoni, being usually either black or purplish-black, and 

 less evidently pubescent. Rostrum a trifle shorter, and not quite so arcuated. Prothorux 

 rather smaller and more cylindrical than that of the A. Wollastuni (the sides being scarcely at all 

 rounded), and not quite so rugosely punctui-ed. Elytra varying from roundish-ovate into ovate, 

 and deeply crenate-striated ; with less indications of being subdebiscent (or separately rounded- 

 ofi") at their extreme apex than in the last species ; the interstices with scarcely any tendency to 

 be punctulated ; generally rather more metallic than the prothorax, being either of a shghtly 

 coppery or greenish tinge. Antenna and legs rather shorter and less robust than those of the 

 A. Wollastoni, and apparently free from metallic lustre. 



Apart from the above coinjmrative diagnosis, the distinctions between the 

 present species and the last one have been already pointed out. The A. rotimdi- 

 penne varies a good deal in the outline of its elytra, which are either subglobose 

 or else (like those of the A. Wollasto)ii) ovate. They are both of them strictly 

 indigenous insects, — the one under consideration however being, so far as I have 

 hitherto observed, the more widely distributed of the two. It occm-s, at most 

 seasons of the year, in grassy spots of intermediate elevations, and would seem 

 to be more attached to the Vicia consplcua, Lowe, than to any other plant, — 

 an additional reason (since that vetch is essentially Madeiran) for regarding it as 

 a true native of the soil. I have taken it in the Ribeiro de Santa Luzia in May, 

 at Sao Vincente in June, at the Lombo dos Pecegueiros in July, at the Ptibeii-o 

 Prio and the Feijaa de C6rte in August, and at the Curral das Romeiras dvu'ing 

 October. 



