1899.] PHYTOPHAGOUS COLEOPTERA OF AFUICA. 359 



Length 5 millim. 



Head and palpi flavoiis, the former impunctate ; antenn£e 

 extending beyond the middle of the elytra, black, the lower four 

 joints flavous, basal joint slender, second very short, 1 bird strongly 

 dilated and excavated at its apex, fourth much shorter and 

 widened into a tooth at the upper edge, the other joints slender ; 

 thorax transverse, with rounded sides, the disc with a deep trans- 

 verse sulcus, interrupted at the middle, remotely punctured at the 

 anterior portion only, flavous ; scutellum subquadrate, flavous, 

 deeply excavated, the sides raised into high ridges ; elytra rather 

 strongly depressed below the base, the basal portion near the 

 scutellum raised and furnished with a small fulvous tubercle on 

 each elytron, rest of the surface with a few fiue punctures only, 

 black, very shining; abdomen flavous, trilobate at. the last segment, 

 the middle lobe much broader than long, flat; all the tibiae mucro- 

 uate, claws deeply bifid. 



Hah. Cameroons (Conrad). 



The single male specimen which I received from Dr. Kraatz is 

 readily distinguished by the structure of the scutellum, in which it 

 nearly agrees with Aulacophora scutellata Baly ; but in that species 

 the antenuse are simple, the shape of the scutellum is different, and 

 the abdomen is not flavous. 



ASBECESTA DtTTITIERI, Sp. n. 



Black, the basal joints of the antennae and the legs flavous ; 

 thorax nearly impunctate, flavous; elytra closely and distinctly 

 punctured, flavous, margined with black. 



Length 5 millim. 



Head black, impunctate, the frontal tubercles and the clvpeus 

 strongly raised ; antennas not extending to the middle of the elytra, 

 the lower five or six joints flavous, the rest black, the terminal two 

 joints much more elongate than the others, third aud fourth joints 

 equal. Thorax one-half broader than long, the sides rounded, 

 the basal sulcus strongly marked, the surface with a few minute 

 punctures here and there ; scutellum black ; elytra longitudinally 

 depressed near the lateral margins and with another shorter 

 depression at the sides, rather strongly and closely punctured, 

 flavous, all the margius rather broadly black, the humeral callus 

 also with a short blackish mark within ; below black, the legs 

 flavous. 



Eab. Moliro, Congo (J. Duvivier) (Belgian Mus. collection 

 and my own). 



Much smaller and narrower than A. marginata, the underside 

 black not flavous, and the elytral margins moi'e broadly black, the 

 legs unicolorous. 



ASBECESTA MAKGINATA, Sp. U. (Plate XXI. fig. 5.) 



Flavous, the antennae, the apex of the tibiae, and the tarsi black, 

 the head and thorax with a black spot ; elytra closely and finely 

 punctured, testaceous, narrowly margined with black. 



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