424 On a new Genus and Species of Cicindelidse. 



widely scattered remains of a developmental series, the inter- 

 mediate members of which, perhaps, lie buried in deposits now 

 immersed beneath the sea, or which are to be found only in un- 

 investigated parts of the earth. That under such conditions the 

 construction of genealogical trees must for the present, at least, 

 remain an equally unprofitable and thankless task need hardly 

 be said. 



[To be continued.] 



LIV. — Description of a new Genus and Species o/Cicindelidas 

 allied to Tetracha, from South Africa {Coleoptera Geode- 

 phaga). By Charles 0. Wateehouse. 



The very interesting addition to the family Cicindelidee here 

 described was obtained by Mr. Thelwall at Lake Nyassa in 

 South-eastern Africa, and, as will be seen from the following 

 characters, is intermediate between Megacephala and Tetracha. 



Styphlodeema, gen. nov. 



General characters of Tetracha. Apical joint of the palpi 

 much more securiform than in Tetracha. Elytra rather de- 

 pressed, elongate-ovate; shoulders completely effaced. Wings 

 none. Anterior tarsi of male with the first three joints only 

 slightly dilated ; posterior tibia3 with two or three slight 

 grooves above. Abdomen with seven segments in the male, 

 the penultimate segment emarginate. 



The anterior tarsi in the male of this insect resemble those 

 of Megacephala, with which it agrees also in being apterous ; 

 but in its other characters it agrees more nearly with Tetracha. 

 From this latter it differs in the form of the anterior tarsi, in 

 being apterous, and in having the apical joint of the palpi 

 much more securiform. 



Styphloderma asperatum, sp. n. 



Nigrum, subnitidum ; genis seneis, palpis pallide piceis ; tboraee 

 postice parum angustato, convexo, supra antice posticeque seneo- 

 tincto et tuberculato, disco glabro ; elytris elongato-ovalibus, 

 parum convexis, depressiusculis, subviolaceo-nigris, dense rugose 

 asperato-tuberculatis, singulis guttis duabus ferrugineis ; tarsis 

 piceis. 

 •Long. 10| lin., lat. 4 lin. 



Head nearly smooth, with a shallow metallic impression at 



