274 MB. M. JACOBY ON COLEOPTERA [May 21, 



posteriorly, the interstices slightly convex ; underside hlack ; legs 

 fulvous, the posterior tibiae sometimes piceous ; anterior coxal 

 cavities closed. 



From Corozal. 



Although I have not much doubt that I am rightly referring the 

 present insect to von Harold's genus, tliere are differences to be 

 found which are rather important from a structural point of view; 

 thus in S. haroldi the antennae have the third joint nearly twice as 

 long as the preceding, instead of these joints being both extremely 

 short; the posterior femora also do not extend beyond the abdomen 

 as in the type, and the posterior tibiae are distinctly channelled near 

 the apex ; as, however, all other characters, including the thoracic 

 groove placed closely to the margin, the closed cavities and other 

 details, agree well with the description of that author, the above- 

 mentioned differences are doubtless more specific than generic. From 

 S. haagi, S. haroldi is well distinguished by the transversely shai)ed, 

 not quadrate, thorax and the black underside. 



Crepidodera castanea, n. sp. 



Dark brown ; antennae and legs flavous ; thorax subquadrate, 

 strongly punctured ; elytra regularly punctate-striate, the interstices 

 costate at the sides. 



Var. above paler brown. 



Length |-1 line. 



Head impunctate, the frontal tubercles small but distinct, the 

 lower part of the face rather deflexed and flattened, nearly smooth ; 

 palpi flavous ; antennae slender, nearly two thirds the length of the 

 body, entirely flavous, all the joints with the exception of the second 

 of nearlv equal length ; thorax one half broader than long, the sides 

 concave, the angles acute, the surface rather convex, with a not very 

 deep transverse sulcation near the base, which is not bounded 

 laterally by a longitudinal groove, but extends upwards a short 

 distance along the sides, the disk strongly punctured ; elytra convex, 

 pointed at the apex, the basal portion distinctly raised, regularly 

 and rather strongly punctate-striate, of a uniformly dark brown colour 

 like the head and thorax ; legs entirely flavous ; the first joint of the 

 posterior tarsi as long as the three following joints together ; anterior 

 coxal cavities closed. 



San Esteban. 



This very small species seems to be allied to C. plewalis, Har., 

 from Bogota as regards the non-limited thoracic groove ; the shape 

 of the tiiorax and the dark uniform brown colour of the upper surface 

 will help to distinguish C. castanea from its allies. 



CaCOSCELIS (?) SEMIFULVA, U. Sp. 



Reddish fulvous ; the antennae, the apex of the femora, and the 

 tibiae and tarsi black ; thorax impunctate ; elytra metallic blue, 

 extremely closely and. finely punctured. 



Length 2 lines. 



Head impunctate, transversely grooved between the eyes ; the 



