new Species o/TIisterida?. 289 



abbrcviata antico haniata ; mesosterno stria marginal! baud 

 interrupta. 

 L. 3| mill. 



Oval, convex, ceneous above and shining, black beneath; 

 the head is closely not coarsely punctured and without frontal 

 striae ; the thorax, marginal stria entire, punctured on the 

 lateral borders, with a small impression behind the eye, much 

 narrowed anteriorly and not ciliate at the sides. The elytra, 

 the humeral area is red, the dorsal stria?, except the sutural, 

 are very short, or wanting (as the fifth), the sutural is shortened 

 before the apex, otherwise it is similar to the sutural stria 

 figured by Marseul for 8. bisignatus, Er. (Mon. 1855, fig. 13); 

 on either side of the sutural stria, just behind the middle, is 

 a small fovea, the elytral apices are moderately, not densely 

 punctured, the epipleural stria is continued round the apex of 

 each elytron, but it does not quite reach the suture. The pro- 

 sternum, the stria} on the keel are strong and anteriorly diverge 

 (similarly to those of S. bisignatus) ; the mesosternum is 

 faintly and sparingly punctulate, the marginal stria is complete 

 and widely sinuous, but it is not quite close on the anterior 

 edge ; the anterior tibia} are 7-8-dentate. 



This species is easily distinguished from its congeners, 

 S. bisignatus, Er., S. lepidus, Er., and others, by its red 

 shoulder and complete mesosternal stria. 



Ilab. Ecuador. 



Teretrius Braganzce, sp. n. 



Cylindricus, niger, nitidus, undique punctatus ; pronoto stria mar- 

 giuali antice interrupta ; prosterno valide bistriuto, striis antice 

 sensim divaricatis, lobo antice marginato ; mesosterno antice 

 obtuse producto et immarginato ; mesosterno metasternoque in 

 medio canaliculatis. 



L. 2 mill. 



Cylindrical, black and shining, legs and antenna} reddish, 

 surface above rather densely and strongly punctured, many of 

 the punctures appear under the microscope minutely ocellate; 

 the head is rather convex; the thorax, lateral stria well-marked, 

 but it is not continued behind the neck, on the edge before 

 the scutellum there is a cluster of dense punctures ; the elytra, 

 the smooth humeral space is very distinct ; the presternum, 

 there is a transverse marginal stria along the apical margin 

 of the anterior lobe, but down the sides there are only a few 

 marginal punctures, the keel and lobe have a very few but 

 conspicuous and irregular punctures, the strise on the keel 

 are very conspicuous and posteriorly do not quite reach the 



