'S3() TUE LATK MK. M. .rACOBY OX NEW [NoV. 26, 



sulcus, which couiineiices »t the inidclle of the lateral mai-gin and 

 ends in a deep fovea in front of the posterior angles, these acute 

 and produced, another more shallow depression is placed at each 

 side near the scutellum ; extreme edge of posterior margin black. 

 Scutellum narrowly elongate and pointed, fulvous, base with a 

 small fovea. Elytra parallel and elongate, with a very shallow 

 depression below the base, very closely punctate-striate ; the punc- 

 tures transverse, much finer near the apex ; the interstice at the 

 shoulders costiform ; epipleural lobes rather strongly produced. 

 Under side paler ; legs elongate, black, the base of the femora 

 fulvous, claws appendiculate. Prosternum longer than broad, with 

 shallow lateral grooves, posterior margin straight. 



Ifab. Bahia. 



A very aberrant species and agreeing almost with the genus 

 Mastacanthus Suff., but the prosternum of different shape. 

 Having only a single specimen for comparison, I have included 

 it at present in Cryptocephalus. 



Cryptocephalus emarginatus, sp. n. 



Fulvous ; antennse and sides of breast black ; thorax impunc- 

 tate ; elytra finely punctate-striate, fulvous, the extreme basal 

 margin black, outer interstices costate. 



Length 3 millim. 



Broadly ovate ; head impunctate, sides and vertex entii-ely 

 occupied by the eyes, which are only separated by a very narrow 

 space ; antennte extending to middle of elytra, black, basal two 

 joints fulvous, third and fourth joints elongate, equal, following 

 joints shorter and thicker. Thorax strongly narrowed anteriorly, 

 twice as wide at the base than in front, the sides straight ; surface 

 shining and impunctate, the basal portion paler than the anterior 

 one. Scutellum triangular, fulvous, base black. Elytra with 

 fine rows of punctures distinct to the apex, the fifth and sixth 

 rows shortened and joined at the apex, thii-d and ninth rows 

 similarly connected ; the extreme basal margin black, this colour 

 also extending to the epipleurse of the humeral lobes, the 

 extreme sutural and apical margins likewise black ; interstices 

 impuncta.te, the outer two longitudinally convex. Breast more or 

 less black. Prosternum broadly subquadrate, with some irregular 

 depressions. 



Hah. Amazons. 



Of short and broad shape, the pimcturation of the elytra very 

 tine, the latter with the basal margin and epipleurse black. I 

 have two exactly similar specimens before me. The species bears 

 the above specific name in the Brit. Mus. collection, but I can 

 find no species so described. 



Cryptocephalus bahiaensis, sp. n. 



Reddish-fulvous, shining ; head, underside and legs flavous ; 

 antennfe with apical joints black ; thorax impunctate ; elytra 

 finely punctate-striate. 



