African Phytophagous Coleoptera. 211 



Head reddish fulvous at the base, the anterior portion black, the 

 space between the eyes raised into two tubercles, the eyes deeply 

 notched, antennce extending nearly to the middle of the elytra, 

 black, robust, the third and the following joints of nearly equal 

 length and thickness, the terminal joints shorter ; thorax not broader 

 than long, the sides but little constricted at the middle, the anterior 

 angles with a small tubercle, the disc with several rows of very fine 

 punctures at the middle, the anterior portion with a short transverse 

 sulcus at the sides close to the anterior margin and more or less 

 distinct, the base with the usual sulcus well marked, scutellum 

 truncate at the apex, elytra without any basal depression, sub- 

 cylindrical, reddish fulvous, the punctures deep, large and closely 

 placed especially so near the apex where they gradually diminish in 

 size, the interstices at the same place strongly costate, below and the 

 legs black, sparingly pubescent. 



Hah. Ashanti, West Africa. 



Of this species I possess two specimens ; it forms another 

 link in the little group of African Zema's to which L. 

 armata, Lac, and L. hottentota belong, but differs from all of 

 them in the structure of the thorax, the sides of which 

 are better described as concave than constricted; the 

 surface also is nearly smooth, not transversely plicate, and 

 has another short sulcus anteriorly as described above ; 

 the elytra show no trace of a basal depression, and the 

 antennas and legs are entirely black as well as the under 

 side. 



Lema impressicollis, sp. n. 



Black below, above fulvous, thorax transversely subquadrate, 

 tuberculate anteriorly, the disc with two deep longitudinal sulci, 

 elytra closely and deeply punctate-striate, the interstices at the apex, 

 convex. 



Length 5^ millim. 



Head fulvous at the base, the anterior portion black, finely 

 pubescent, the space between the eyes raised into two oblong eleva- 

 tions, eyes triangularly notched, antennEe nearly extending to the 

 middle of the elytra, black, all the joints rather robust, the third 

 and fourth equal, rather short ; thorax slightly broader than long, 

 strongly constricted at the middle, the anterior angles acutely tuber- 

 culiform, the basal sulcus deep, the disc with a deep longitudinal 

 groove at each side, extending from the base to the transverse 

 sulcus, the space below the latter transversely plicate, the rest of 

 the surface impunctate, elytra with very deep and closely placed 



