[Revision of the Hypophloeini of the Ethiopian region (Col., Tenebrionidae). Part IV: species of the genera Cheilopoma Murray 1867, Pogonoxenus Wassmann 1899, Ischnarthron Gebien 1920 and Typhlophloeus Jeannel and Paulian 1945 with the description of a new species of the genus Corticeus Piller and Mitterpacher 1783.] Coleoptera, 2 1998: 175-188. 179 [Zoological Record Volume 137]