1899.] PHYTOPHAGOUS COLEOPTERA OF AFEICA. 355 



NlSOTEA APICALIS, sp. n. 



Obscure fulvous, the apical joints of the antennae fuscous ; thorax 

 transverse, finely and closely puuctured ; elytra strongly punctate- 

 striate, fuscous, the apes more or less pale fulvous. 



Length 3 millim. 



Ovate and convex, pointed posteriorly ; the head impunctate, 

 fulvous, the frontal elevations indistinct, the labrum and palpi 

 fulvous; the antennoe only reaching the base of the elytra, fulvous, 

 the terminal joints more or less piceous, the third joint more 

 slender and slightly longer than the fourth joint, the apical joints 

 slightly thickened; thorax at least twice as broad as long, the sides 

 evenly and moderately rounded, the anterior margin straight, the 

 posterior one strongly produced at the middle and rounded, im- 

 pressed at each side with a short, slightly oblique perpendicular 

 groove, the surface very finely and closely punctured ; elytra 

 gradually widened towards the middle, rather strongly punctured, 

 the punctures somewhat irregidarly arranged in rows, distinct to 

 the apex, the latter flavous, the rest of the surface fuscous, the two 

 colours generally well divided ; below and the legs fulvous ; 

 prosternum narrow; the breast and abdomen nearly impunctate. 



Hah. Ehobomp, Sierra Leone. 



Smaller than N. spadicea Dahlm., of different coloration and wdth 

 single not geminate elytral puncfcation. 



NlSOTiiA CONGOENSIS, sp. U. 



Eulvous ; the thorax finely and closely punctured, the base with 

 two perpendicular grooves ; elytra deeply punctate-striate, the 

 interstices finely punctured, flavous, the disc with a broad longi- 

 tudinal black band, not extending to the apex. 



Var. The elytral band divided into a basal and subapical spot. 



Length 4 millim. 



Head convex, extremely minutely punctured, the eyes bounded 

 within by a deep sulcus ; clypeus narrow, strongly raised ; antennae 

 fulvous, extending to the base of the elytra only, the second and 

 the following joints very nearly equal, all rather thickened, terminal 

 joint more elongate ; thorax twice as broad as long, the sides evenly 

 rounded, the angles acute, the surface very closely and finely 

 punctured, flavous or fulvous, the basal margin with a rather deep 

 and long perpendicular groove at each side ; scutellum flavous ; 

 elytra ovate, very strongly and deeply punctate-striate, the inter- 

 stices minutely punctured and longitudinally costate, each elj^ron 

 with a broad longitudinal black band abbreviated near the apex 

 and constricted at the middle ; underside and the legs fulvous • 

 tibiae mucronate ; prosternum narrowed between the coxae. 



Hab. Chiloango, Congo. Belgian Mus. collection and my 

 own. 



Closely allied to i\\. unifasciata Jac. and of similar coloration, 

 but the antennae entirely fulvous, and the elytra very deeply and 

 regularly punctured, with the interstices costate and the latei'al 



