Coleoptera from East Africa* 55 



feebly tubercled on the sides and disk ; antennas much 

 shorter than t lie body in both sexes ; intercoxal process of 

 the presternum simply arched, not truncate in front; inter- 

 coxal process of the mesosternum gradually sloping in front, 

 and broadly canaliculate along the middle. 



Plectropygus mucoreus, sp. n. 



Tube nigra ferrugineo variegata vestitus; elytrisad basin apicemque 

 concoloribus sed in area intermedia albido-liavescente dense 

 pubescentibus, raacnlis prope medium et ad marginem externam 

 nigris; antennarum articulis atertio nigris, utris [ue basi angustim 

 cinereis. apice angustim t'ulvis, subtus sparse nigro-fimbriatis. 



S . Antennia medium elytrorum paullo superantibus, segmento 

 ultimo ventrali abdominis apice transversim excavato et fusco- 

 fimbriato. 



2 • Antcnnis medium elytrorum vix superantibus ; segmento ultimo 

 ventrali ad apicem paullo depresso et ad basin linea media 

 brevissima impresso ; pygidio apice valde emarginato et uucis 

 duobus, uno alteram adverso, armato. 

 Long. 19-22, lat. 6-7 mm. 



Hal. Mbuyuni, Brit. E. Africa ((7. S. Bettoa) ; Nyasa- 

 land (A. Whyte). 



Head, prothorax, legs, and the underside of the body with 

 a blackish- brown indumentum interspersed with small patches 

 of rust-red pubescence ; anterior and posterior fourths of the 

 elytra coloured like the body, but the intermediate half 

 thickly covered with yellowish-white pubescence interrupted 

 by a transverse black patch near the middle of each elytron, 

 and a i'ew spots alongside the outer margin. Prothorax 

 with four feebly raised tubercles above, and two small obtuse 

 tubercles on each side, with some rather large shallow punc- 

 tures scattered over the disk. Elytra strongly punctured, 

 with the punctures over the pale-coloured intermediate area 

 almost entirely hidden by the pubescence ; with two small 

 tufts of black hairs on each near the base, one just within the 

 shoulder, the other placed farther back and nearer to the 

 suture. 



Antennas (slightly longer in the male than in the female) 

 reaching a little beyond the middle of the elytra, with a thin 

 fringe of dark brown hairs underneath ; third joint the longest, 

 fifth joint much shorter than the fourth, the sixth and follow- 

 ing joints decreasing in length. 



Male with a transverse excavation, somewhat oval in out- 

 line, at the apex of the last ventral segment, and with a 



