SUNIOCHARIS.—SUNIOTRICHUS. 587 
and distinct. Elytra rather longer than the thorax. Hind body slender, ferruginous 
brown, acuminate behind, excessively densely and finely punctate. 
Mr. Champion met with half a dozen specimens in the Pearl Islands, but from each 
of the other localities we have only one or two examples. The individual figured was 
found at David. Found on the sandy banks of small streams. 
2. Suniocharis nigrescens. 
Angustula, fusco-nigra, opaca, antennis pedibusque testaceis; capite prothoraceque impunctatis; elytris 
densissime subtilissimeque punctatis. 
Long. 5 millim. 
Hab. Guatemaa, Capetillo (Champion). 
This insect is very closely allied to S. modesta, but is larger and is readily distinguished 
by the dark colour ; it also has rather longer elytra. 
Only two examples were met with, exhibiting no sexual marks. 
3. Suniocharis fragilis. 
Fuscescens, prothorace elytrisque ferrugineis, antennis pedibusque testaceis ; antennis sat elongatis ; capite pro- 
thoraceque fere impunctatis, opacis; elytris dense punctatis. 
Long. 423 millim. 
Hab. Mexico, Cordova (Hoge). 
Antenne rather slender, with evident exserted sete on the basal joints, the penultimate 
joint longer than broad. Head subtruncate behind, the eyes small ; surface dull, but at the 
hind angles brighter and minutely rugose. Thorax about as long as broad, the base and 
hind angles greatly rounded, very dull, without perceptible sculpture. Llytra flat, 
slender, longer than the thorax, more pallid in colour towards the extremity than at 
the base, closely and finely punctate, rather shining. Hind body fuscescent, sordid 
testaceous towards the extremity. | 
We have obtained only one mutilated individual (apparently a female) of this species. 
I am not at all sure that it can be correctly included in Sunitocharis, as the antenne and 
mandibles are more elongate, and the labrum is very distinctly bidenticulate. Possibly 
it may form a genus between Swniocharis and Suniotrichus. 
SUNIOTRICHUS. 
Antenne tenues, setis’elongatis munite, articulo secundo quam tertius haud crassiore. Labrum magnum, medio 
longius bispinosum. ‘Tarsi filiformes, articulo quarto superne vix perspicuo, subtus sub articulo quinto in 
lobo tenui producto. 
This very distinct genus is allied to Medon rather than to Swnius, although in 
appearance and in the structure of the feet it comes nearer to the aberrant species of 
the latter genus comprised in the group of which S. Jatus, Rosenh., may be taken as the 
type. The prothorax is constructed like that of J/edon, the coxal cavities being quite 
4 FF 2 
