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522. 

 HYLESINUS SCABER. 



Order Coleoptera. Fam. Bostricidse. 



Type of the Genus, Hylesinus crenatus. Fab. 



Hylesinus Fab., Lot., Gyll., Curt. — Bostrichus Panz. — Scolytus 

 Oliv. — Ips Marsh. 



^w^raH<£' inserted near to the anterior margin of the eye, not 

 longer than the head, capitate, pilose and 11 -jointed, basal joint 

 long, clavate and hooked at the base, 2nd stout and subovate, 

 3rd slenderer, obtrapezate, 5 following a little broader, short 

 and transverse, the remainder forming a pubescent ovate-conic 

 club, slightly compressed, 9th joint a little longer than the 10th, 

 the apical one considerably longer and conical, with a trans- 

 verse suture (6). 

 Lahrum undiscovered. 



Mandibles porrected, trigonate, inside concave, with 3 slight 

 notches on the inner margin (2). 



Maxillee furnished with a large ovate lobe, armed on the inside 

 with long lanceolate spines and bristles, and very bristly outside. 

 Pal])i extending beyond the lobe, externally hairy, triarticulate, 

 basal joint the longest and stoutest, 2nd subquadi'ate, 3rd as 

 long but much narrower (3) . 



Mentum obovate, pilose before. Lip minute. Paljji consider- 

 ably longer than the maxillary, hairy, triarticulate, basal joint 

 long and stout, 2nd short ovate, 3rd the same length but 

 slender and naked (4). 

 Head deflexed and subconic : clypeus broad with a triangular lobe at 

 the centre: eyes small and latei-al. Thorax cylindric, semiorbicular : 

 scutellum minute and sunk. Elytra very convex, oval, scarcely de- 

 pressed at the apex : vdngs very ample. Thighs stout but nearly 

 linear, longer than the Tibice, which are short and broad, being nar- 

 roived at the base and a little dilated and serrated externally at the 

 apex, having spiny bristles also outside, with a minute claw at the 

 internal angle. Tarsi nearly as long as the tibice, 5-jointed, first 

 3 joints pubescent beneath, the basal one a little longer than the 2nd, 

 Zrd bilobed, 4th minute, 5th the longest, clavate : claws strong and 

 acute. 



ScABEK Marsh. Ent. Brit. p. 56. n. 14. — Curt. Guide, Gen. 335. 3. 

 Short and stout, piceous, clothed mth very short ochreous hairs, 

 thickly punctured, scabrous, face concave : elytra with 9 strong 

 striag on each, the suture thickly clothed with short yellowish 

 hairs, forming an obscure oblong spot towards the base : legs 

 sometimes inclining to castaneous, with the tips of the tibiae of 

 a brighter colour ; antennae and tarsi ochreous, the latter rather 

 dull. 



In the Author's and other Cabinets. 



