from the West Indies. 397 



tlian the second, the fourth sliglitly transverse, tlieeightli to 

 the tenth as long as broad, scarcely increasing in thickness, the 

 eleventh conical, not as long as the two preceding together. 

 Thorax strongly transverse, nearly semicircular, the posterior 

 angles completely rounded, the sculpture similar to that of 

 the head. Elytra twice the length of the thorax and slii2,htly 

 broader, longer than broad, similarly sculptured to the 

 thorax. Abdomen elongate, parallel till near the apex, where 

 it is slightly narrowed ; exceedingly finely and densely 

 coriaceous, very finely and closely pubescent. 

 Haiti. Type in my collection. 



5 b. Thinobius (s. str.) ornatus^ sp. n. 



Narrow, elongate, fragile, black, the elytra posteriorly 

 broadly testaceous. Antennae and legs entirely testaceous. 



Length 1'75 mm. 



A slender fragile species, at once distinguished by the 

 bright testaceous posterior border of the elytra. 



Head suborbicular, nearly opaque, densely coriaceous ; 

 eyes large, temples small. Antennse with the third joint 

 distinctly shorter than the second, the fourth to the tenth 

 transverse, gradually increasing in breadth, the penultimate 

 about half as broad again as long, the eleventh as long as 

 the tvro preceding together. Thorax about one-third broader 

 than long, narrowest behind, the sides gently rounded to the 

 anterior angles; posterior angles obsolete ; pitchy, rather 

 more shining than the head, densely and finely coriaceous. 

 Elytra twice as long and a little broader than the thorax, 

 longer than broad, the posterior fourth bright yellow, 

 exceedingly finely and very closely punctured. Abdomen 

 elongate, exceedingly finely and densely punctured and 

 pubescent throughout. 



Haiti. Type in my collection. 



5 c. Thinobius (s. str.) piceus, sp. n. 



Pitchy-brown, somewhat shining. Elytra half as long 

 again as the thorax. Antennse long and slender, fusco- 

 tcstaccous, the base more or less testaceous. Legs testaceous. 



Length 1"5 to 1'75 mm. 



Rather more slender than T. tenuis, Slip., but otherwise 

 almost exactly similar in build. Apart from this it is 

 distinctly more shining, the antennae are not quite so long, 

 the individual joints being shorter. 



Head subtriangular, rather broad, densely and finely 

 sculptured, but without distinct puncturation. Antennae 



