new Species of Histeride. 363 
the propygidium and pygidium are more closely and clearly 
punctured, the later convex above; the prosternum is about 
one third longer than wide, truncate at both ends, with a 
microscopic strigose surface-sculpture and a few very small 
punctures, without strie, and the lateral edges are rounded 
off, not angulate; the mesosternum sulcate on either side 
behind the anterior coxe, anteriorly immarginate, surface 
with scattered oblong punctures ; the anterior tibiz 5-dentate. 
This is the only species I have seen without prosternal 
striz or sulci; the female is not known to me. 
Hab. Sumatra. 
Trypeticus tncilis, sp. n. 
Cylindricus, piceo-brunneus, nitidus; capite vertice obscure punc- 
_ tato in medio minute foveolato, antice plano immarginato, rostro 
minute bituberculato; prosterno striis lateralibus antice con- 
junctis. 
L. 33-4 mill. 
Cylindrical, pitchy brown, shining; the head, vertex 
obscurely punctured, with a shallow median fovea, face nearly 
flat, ¢ teebly impressed in the middle, ? impression more 
distinct, more obtuse, with two very small tubercle-like 
projections on its anterior edge, and equally large in both 
sexes ; the thorax with a lateral stria only, somewhat densely 
punctured, with a narrow smooth space in the middle, more 
or less defined, g with a short depression behind the neck 
and a feeble carina along its centre, ? without the depres- 
sion, but with dense punctures behind the neck; the elytra 
are more conspicuously punctured in the ? than g and are 
fairly close together; the propygidium and pygidium are 
clearly and rather closely punctured, the latter is slightly 
convex and immarginate ; the prosternum is about one third 
longer than broad, punctate, truncate before and behind, with 
a distinct marginal stria at the sides and which continues 
anteriorly ; the mesosternum has a lateral sulcus only; the 
anterior tibiee 5-dentate. 
This species is a little smaller than the last; it has no 
facial marginal stria like that of the next species, 
Hab, Sumatra. 
Trypeticus mustelinus, sp. n. 
¢@. Cylindricus, piceo-brunneus, nitidus; capite antice plano, 
margine triangulariter carinato, rostro reflexo, subacuto ; pronoto 
lateribus profunde sinuato; pygidio dense punctato; prosterno 
mesosternoque utrinque sulcatis; metasterno in medio canalicu- 
lato. 
L, 34 mill, 
25% 
