neio Species of Histeridse. 399 



the middle, two at the apex small and close together, posterior 

 4-spinose ; antennge and legs pitcliy black. 



I have dedicated this species to my friend Mons. Antoine 

 Grouvelle, whose work in the Cucujidse and other families is 

 well known, and to whom I am much indebted for many 

 novelties in this family. 



Hab. Bahia. 



Teretriosoma 'plumicornis^ sp. n. 



Cylindricum, viridum, nitidum, punctatum ; mesosterno stria sub- 



integra; capite subtus, antennis pedibuscpie rutis. 

 L. 21 mill. 



Cylindrical, bluish green, shining ; head rather closely 

 punctured and transversely convex, mandibles, head beneath, 

 and abdominal segments reddish ; thorax similarly punctured 

 in front and on disk, punctures larger at the base, no scutellar 

 fovea, lateral stria strong, tine but clear behind the head ; 

 elytra without striee, punctures rather more densely set 

 apically, transversely impressed near the base ; propygidium 

 densely punctulate ; pygidium gibbose above, feebly concave 

 in the inferior half and throughout punctulate like the propy- 

 gidium ; prosternum feebly arched at the base, closely punc- 

 tate ; mesosternum feebly and obtusely produced, stria not 

 quite complete anteriorly, punctate like the prosternum; lateral 

 stria of the metasternum well marked and oblique, no median 

 line ; antennge and legs red, scape pilose ; anterior and 

 intermediate tibiee 7-dentate. 



This insect is smaller and relatively narrower than T. virens^ 

 and the head and abdominal segments are red beneath. The 

 lateral stria of the metasternum is also less oblique and 

 stronger. The median line of the metasternum in T. virens is 

 clearly visible but extremely fine. 



Hab. British Honduras. 



Teretriosoma pilicornis J sp. n. 



Subcyliiidricum, viridum, nitidum ; antennis pedibusque rufis ; pro- 



pygidio pygidioque dense punctatis ; mesosterno immarginato. 

 L. 2A mill. 



Subcylindrical, bluish green, shining, antennae and legs 

 dull red, the scape bearing whitish hair on the upper edge ; 

 head convex between the eyes, not closely punctured ; thorax, 

 marginal stria complete, punctures rather closely set on the 

 anterior angles, a little sparse on the disk, larger at the base, 

 no scutellar fovea ; elytra punctured evenly throughout the 



