434 Memoirs on the Coleoptera 



condensed in a narrow elytral fascia in fasciata; claw-joint moderate, the 

 basal node less strongly differentiated. [Type Rhynchcenus timidus Oliv.] 



Baris 



Beak slender and not separated by an impression, shorter than the prothorax; 

 basal segment of the club pubescent, with a fine basal margin abruptly 

 glabrous; body elongate, parallel, glabrous above, minutely squamulose 

 beneath; claw-joint moderate in length and notably slender; pygidium 

 well developed, very finely punctate; scutellum more minute; prosternum 

 feebly bituberculate in the male. [Type T. reversa nov.] Trogatia 



28 — Prothorax but little narrower than the elytra 29 



Prothorax much narrower than the elytra and cylindric; body small in size, 

 slender, glabrous and polished 32 



29 — Prosternum with a shallow though sharply limited canal, the coxae narrowly 

 separated; body oblong-oval; elytra even in surface, strongly grooved; 

 pygidium well developed, convex; beak thick, compressed and strongly 

 sculptured; antennae short, the club large, oval and as long as the five or 

 six preceding joints. [Type Z. lyratus nov.] Zathanius 



Prosternum with a wide and sharply limited but rather shallow and moderately 

 concave canal, the coxa? narrowly separated; body nearly as in the preceding, 

 but with the coarsely grooved elytral surface undulate; pygidium nearly 

 flat, concealed from vertical view; beak thick, not compressed; antennae 

 more slender, the oval club smaller, as long as the three or four preceding 

 joints, similarly pubescent throughout. [Type E. undulatus nov.] 



Euzathanius 



Prosternum deeply and conspicuously canalate 30 



30 — Beak rather slender, longer than the head and prothorax; body rhombic- 

 oval, polished, glabrous and feebly sculptured above. Antennae slender, the 

 club pubescent and oval; elytra rather narrowly grooved; pygidium moder- 

 ate, convex and vertical; anterior coxae well separated. [Type T. perpolitus 

 nov.] Thanius 



Beak thicker, not quite as long as the prothorax; body elongate-oval, strongly 

 convex, polished, glabrous, excepting a cluster of scales at the base of the 

 third interval, feebly sculptured; antennae with the funicle dilated distally, 

 becoming almost as wide as the club, which is small, pubescent, with its 

 basal segment fully half the mass; pygidium semicircular, convex; anterior 

 coxae well separated, the posterior lobe not feebly sinuate as in the preceding, 

 but with a large semicircular emargination. [Type M. emarginatus nov.] 



Mesothanius 



Beak notably thick and shorter than the prothorax in both sexes; body parallel 

 in form, glabrous; anterior coxae well separated 31 



31 — Body above the median size, with more or less undulated elytral surface; 

 beak very thick, strongly arcuate as a rule, not compressed and separated 

 by a feeble impression; antennal club rather small, thick, oval and with a 

 glabrous basal segment as in Baris; elytra sharply grooved, with flat inter- 

 vals; pygidium well developed, slightly oblique, flat and more or less visible 

 from above. [Type Baridius carnifex Boh.] Baptobaris 



Body small, parallel, the elytra not undulated and with very coarse punctured 

 striae and narrow convex intervals; pygidium small, much shorter and not 

 visible from above; beak rather thick, feebly arcuate, separated by a some- 

 what deep sulcus; antennal club small, oval and conspicuously pubescent. 

 [Type O. sulcatula nov.] Orthobaridia 



32 — Beak moderately arcuate, separated by a distinct impression; antennae 

 moderate, the club well developed, about as long as the four or five preceding 

 joints, oval and unusually coarsely pubescent; scutellum large, triangular 

 and closely setulo-squamulose; elytra parallel, finely grooved; pygidium 

 moderate, vertical. [Type D. calvata nov.] Dalcesia 



