^3 



246. 

 NOSODENDRON FASCICULARE. 



Order Coleoptera. Fam. Byi'rliidae Lat., Leach. 

 Type of the Genus Byrrhus fascicularis Oliv. 



NosoDENDRON Lat., Leuck. — Byrrhus Oliv., Panz. — Sphaeridium 

 Fab., Panz. 



Antennce inserted before the eyes under the margin of the head, 

 longer than the head, clavate, ll-jointed, 1st and 2nd joints 

 short robust, subovate, the latter being the smallest, the 3rd 

 long, slender subclavate, 4 following short nearly of equal size, 

 somewhat obovate truncate, 8th broader, ctip-shaped, the re- 

 mainder forming an abrupt perfoliated compressed and pube- 

 scent club, the 9th and 10th joints transverse boat-shaped^ the 

 terminal one subtrigonate (6). 



Labrum small transverse ovate, anterior margin ciliated (1). 

 Mandibles trigonate, very broad at the base, the apex forming a 

 broad bent flat lobe, beneath which the internal margin is 

 slightly produced and ciliated (2). 



Maxillce terminated by a long coriaceous lobe, membranous and 

 pubescent at the apex, a shorter transparent lobe on the inside, 

 densely ciliated, with a short claw at the apex. Palpi not so 

 long as the lobe of the maxilla 4 ?-jointed, basal joint invisible, 

 2nd and 3rd short robust, 4th more slender elongate-oval (3). 

 Mentum large, covering the mouth and concealing the lip, co- 

 nical, sides notched towards the top, anterior margin rounded, 

 the sides pilose. Lip large, membranous, pubescent, cleft in 

 the centre. Palpi inserted at the base, short robust, triarti- 

 culate, 1st and 2nd joints small, 3rd oval (4). 

 Head subtrigonate, sunk to the Eyes which are rather small; nasus 

 rounded. Thorax convex, transverse, short, anterior margin broader 

 than the head and concave, posterior rounded, nenrlij as broad as the 

 Elytra which are convex and suborbicular. Scutellum triangular 

 elongated. Wings much longer than the body. Legs short, com- 

 pressed, semicontractile. Tibiae subobtrigonate-elongate, slightly 

 serrated externally, anterior pubescent on the inside, slightly emar- 

 ginate towards the apex on the outer edge (5). Tarsi short, 5 -joint- 

 ed, A first joints subquadrate, 5th much longer subclavate. Claws 

 simple and hooked. 



Fasciculare Oliv. Entnm. v. 2. n. 13. pi. \.f. 7. a. b. 



Black, shining. Head and thorax rather minutely, but not very 

 thickly punctured. Elytra deeply and closely punctured, each 

 having 5 rows of ochre-coloured fasculi, 7 or 8 in each row, some- 

 times obliterated towards the base. Antennse castaneous, the 

 club fuscous-ochre. Legs dark-castaneous. 



In the Cabinet of the British Museum. 



