342. 

 GIBBIUM SCOTIAS. 



Order Coleoptera. Fam. Ptinidae Leach. 



Type of the Genus, Ptinus Scotias Fab. 

 GiBBiuM Scop., Lat., Curt. — Scotias Czenpinski. — Ptinus Fab., Oliv., 

 Gtnel. — Bruchus Geoff. 



Aiitennce inserted before the eyes, approximating, porrected, 

 nearly as long as the body setaceous, densely clothed with long 

 pubescence, 1 1 -jointed, basal joint robust subovate, 2nd and 3rd 

 slender of equal length, as long as the 1st, subclavate, the re- 

 mainder shorter, excepting the terminal joint which is the longest 

 and somewhat conical (6). 



Labrum suborbicular, deeply emarginate before, and thickly 

 clothed with long curved hairs (1). 



Mandibles subtrigonate, arched and a little pilose externally, 

 producing an obtuse tooth on the inside, the margin below being- 

 pilose and pubescent (2). 



MaxillcB bilobed, internal lobe elongate, external short, both 

 densely clothed with pubescence and furnished with curved spines 

 at the margin. Palpi 4-jointed, basal joint slender, long and 

 curved at the base, 2nd and 3rd obovate, 4th rather longer than 

 the 1st, attenuated to the apex, which has a vesicle (3). 

 Mentum small, subtrigonate, very pilose, broadest at the base 

 and attenuated to the apex which is rounded. Labium projecting 

 considerably beyond the mentum, very pubescent subcordate, 

 the sides lobed. Palpi attached near the anterior margin, tri- 

 articulate, pubescent, basal joint short and slender, 2nd obovate, 

 3rd larger elongate-ovate (4). 

 Head not very short, nutant. Eyes small, not prominent, placed on 

 each side the crown of the head near the Thorax which is smooth, 

 circular, broadest at the base, longest above, anterior margin nearly 

 straight, posterior convex. Scutellum none. Elytra connate, ovate, 

 nearly enclosing the body beneath. Wings none. Abdomen very 

 small. Legs rather long, especially the hinder pair : coxae long, par- 

 ticularly the posterior : thighs clavate : tibiae incrassated at the apex, 

 hinder pair the longest: tarsi composed of 5 short joints, nearly ob- 

 trigonate, excepting the apical one which is subovate: claws minute 

 (5f, a hind leg). 



Scotias Oliv. v. 2. no. 17. pi- \. f.2. Panz. 5. 8. Curtis's Guide, 

 Gen. 28(3. — apterus Gmel. 



Chestnut colour, smooth, shining. Head black, sides with a few 

 elevated lines : clypeus and mouth clothed with ochreous pu- 

 bescence : antennae and legs densely clothed with ochraceous 

 scaly pubescence, 



Obs. The continental specimens are larger and of a ferruginous 

 ochre colour. 



In the Cabinets of Mr. IVailes, the Author, S^c 



