392 INSECTA MADERENSIA. 



bisects described below possess so many peculiarities of theii* own, that they cannot 

 be referred to any of the groups hitherto published in this section of the Curcu- 

 noiiidiB. They possess perhaps a greater affinity with Cathormiocei^us than with 

 anything else with which I am acquainted ; nevertheless many of the most 

 essential features of that genus (as, for instance, the triangularly emarginated 

 rostrum, the submedial insertion of the antennae with their do^Tiwardly-curved 

 groove, the obsolete scutellum, and the straightened tibiae) are altogether wanting 

 to them. In fact, in the entire front margin of their rostrum and the central 

 ]iosition of its lateral canal, in the details of their enormously thickened and 

 apically-inserted antenna?, as well as in their distinct scutellum and rather largely- 

 developed and acute tibial spine, they recede from the whole of tlie recognised 

 types in this department of the Cyclomides ; whilst the curiously distorted and 

 liasaUy angulated scape of the fli'st of the following species, together with the con- 

 struction of the tibiae of them both (which m the ^S". Maderce have the fi-ont pair 

 deeply emarginated internally, and in the ^S". cnrvlpes the foiu" posterior ones con- 

 sideraljlj" curved and acuminated towards theu" extremity), ■rtII serve additionally 

 to characterize them. In then* habits I believe them to be, at any rate partially, 

 attendant upon Ants' nests, being usually found beneath stones on the grassy 

 mountain-slopes in positions where the Ants are more particularly abundant, — 

 and then* anomalous structure rather favourmg such an hy]^)othesis. At all 

 events, whetlier this l)e the case or not, it is eWdont that such localities are not 

 essential for them, — since in certain districts I have observed them, occasionally, 

 far removed from the habitations, or indeed fi'om any traces, of Ants. 



§ 1. Antennarum scapus mox po7ie basin suhito angulalo-flexuosus atque ibidem abrupte incrassatus, deiit 

 usque ad apican latitudine subteqiialis ; articulo secundo brevi {sequentibus hand longiore). Tibia 

 antica subcwvatce, initis ante apicern emarginato-eonstnctcB, suram sub-basalem efficientes. 



300. Scoliocenis Maderae, WoU. (Tab. YIII. fig. 2.) 

 S. piceo-niger subnitidus puree lutoso-squamosus, prothorace crebrc punctato, elytris subpunctato- 

 striatis, interstitiis setis suberectis longiusculis seriatim instructis, antennis pedibusque ferrugiueis. 

 Long. eorp. lin. lJ-2. 



Habitat sub lapidibus Maderse, prnesertim in graminosis minus elevatis, hine inde non infrequens, — 

 formiearum nidos, nisi fallor, colens. 



S. oblong, and a little shining, piceous-black, and sparingly clothed with dirty, browuish-white, mud- 

 like scales. Rostrum very slightly attenuated towards the apex, and longitudinally channeled. 

 Prothorax with the sides regularly rounded, being widest in the middle, — but altogether a good 

 deal narrower than the clj-tra ; very closely, and rather deeply punctured ; and usually somewhat 

 densely clothed with scales at its lateral edges. Elytra nearly parallel ; sub])unctute-striated ; 

 the interstices flattened, and each beset with a single row of rather long, suberect setae, — which 

 however are often comparatively few in number (or at any rate obliterated) on the disk. Antenna 



