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335. 

 SIMPLOCARIA SEMISTRIATA. 



Order Coleoptera. Fam. Byrrhidae Lat., Leach. 



Type of the Genus, Byrrhus semistriatus III. 



SiMPLOCARiA Marsh MSS., Curt., Steph. — Cistela Marsh. — Byrrhus 

 III., Panz. &c. 



AntenncE inserted before the eyes, near the base of the man- 

 dibles ; clavate, pilose and pubescent towards the apex 3 11- 

 jointed, basal joint large obovate, 2nd small ovate, 3rd long 

 slender, three following short subovate, 7th rather incrassated, 

 the remainder forming a perfoliate club, the joints bowl-shaped, 

 excepting the last which is the largest and ovate (6). 

 Labrum transverse-oval,, the sides angulated, emarginate before 

 and pilose (1). 



Mandibles, one trifid, the other bifid at the apex, with a very deep 

 notch on the inside, filled with a large membrane (2). 

 Maxillce small, terminated by an oblique lobe, pubescent at the 

 apex. Palpi rather long and pilose, 4-jointed, basal joint mi- 

 nute, 2nd rather longer than the 3rd which is trapezate, 4th 

 long, elongate-conic, terminated by a vesicle (3). 

 Mention transverse, triangular, truncate, coriaceous at the base. 

 Lip rather large and suborbicular, ciliated. Palpi attached to 

 two large scapes, contiguous, pilose, triarticulate, basal joint 

 small, 2nd subtrigonate, 3rd large pear-shaped with a vesicle at 

 the apex (4). 

 Head almost concealed in the thorax. Eyes small and lateral. Thorax 

 convex, transverse, broadest at the base. Scutellum minute. Elytra 

 convex, ovate, truncated at the base. Wings ample. Legs uniform, 

 compressed: Thighs 6roarf ; iihias S2ibf us form but flat : tarsi rather 

 long, 5-jointed, basal joint the longest {except in the anterior pair, 

 in which the 5th is the longest), 4th minute i claws curved (5, a 

 fore leg). 



Semistriata ///. — Curtis's Guide, Gen.298.3. — picipes Mars /j. 105. 

 9. — picea Marsh. 106. 1 1. var. /3. 



Shining piceous, with a slight eneous tinge, pubescent and mi- 

 nutely but not very thickly punctured. Mouth legs and antennae 

 ferruginous. Elytra of the same colour or ochreous towards the 

 apex ; 6 striae on each, becoming very faint, or vanishing, before 

 reaching the apex. 



In the Author's and other Cabinets. 



Having carefully examined the Byrrhus concolor of Sturm, I 

 find that it is impossible to include it in the genus Simploca- 

 ria, for it is considerably allied to Leiodes ; and if it be so 



