1 88 MEMOIRS ON THE COLEOPTERA. 



Sciocharis Arrib. 



Sciocharis bakeri n. sp. Moderately stout and convex, subparallel, 

 somewhat dull and minutely, densely punctulate throughout; head black, 

 parallel, not quite as wide as the elytra, the eyes moderately prominent, 

 large, at rather less than their own length from the base, the gular sutures 

 fine, moderately separated, parallel, diverging only at apex and base; pro- 

 thorax blackish-piceous, shorter and narrower than the head, rather wider 

 than long, slightly wider at base than at the apical angles, the median line 

 striiform basally; elytra parallel, quadrate, the humeri well exposed and 

 rounded, blackish, broadly pale basally and laterally; abdomen narrower 

 than the elytra, less dull than the anterior parts, the fifth ventral (d") deeply 

 bisinuate medially, the median projection anguliform, the sixth ventral deeply 

 sinuate medially. Length 2.6 mm.; width 0.5 mm. Cuba (Cayamas), 

 -Baker. 



Differs from carolinensis and nubipennis in the finer, less approxi- 

 mate and more parallel gular sutures, smaller size, larger eyes and 

 other characters. 



Sciocharella Csy. 



Sciocharella pertenuis n. sp. Slender, feebly shining, the sculpture fine 

 and close; head blackish, parallel, the eyes rather large though distant 

 from the base by distinctly more than their own length, the gular sutures 

 fine, widely separated, most approximate anteriorly, thence widely diverging 

 to the base; prothorax pale brownish-testaceous, parallel, about as long as 

 wide, only slightly shorter and narrower than the head; elytra quadrate 

 or somewhat longer than wide, parallel, much larger than the head, pale, 

 infumate posteriorly except at the sides; abdomen pale, slightly narrower than 

 the elytra, the fifth ventral (cf) with two small median sinuses, separated 

 by a broadly rounded lobe, the sixth angularly and deeply emarginate medially 

 at tip. Length 1.8 mm.; width 0.28 mm. Cuba (Cayamas), Baker. 



A very small species, differing from delicatula in its more slender 

 form, male sexual characters to an appreciable extent, larger eyes 

 and other features. The gular sutures are of the same form, widely 

 separated, becoming most approximate only a short distance behind 

 the buccal opening and thence widely flaring to the base, a con- 

 formation strikingly different from anything observable in Sciocharis; 

 but I have not been able to compare in this respect any of the 

 multitude of Sciocharis .inhabiting Brazil. 



Medon Steph. 



Medon explicans n. sp. Moderately stout and convex, testaceous through- 

 out, the head and prothorax rather shining, finely but not very closely punc- 

 tate, the elytra duller, finely but strongly, closely punctate, the abdomen 

 rather dull, minutely and closely punctulate; head not quite as wide as the 



