Shelford, Descriptions of some new genera and species of Blattidae. 623 



Ev ea Kalk m a n n i sp. n. 



?. Elliptical, castaneous, nitid with a few scattered minute 

 punctures. Eyes further apart than antennal sockets , almost 

 concealed under the pronotum. Antennae testaceous , only half 

 the length of the body. Mouth-parts testaceous. Pronotum not 

 covering the vertex of the head , trapezoidal , sides deflexed, 

 posteriorly truncate. Tegminal lobes extending shortly beyond 

 posterior margin of the mesonotum. Posterior angles of abdominal 

 tergites slightly produced. Cerci rufescent, broad at base, pointed 

 at apex. Abdomen beneath rufescent. Legs testaceous. 



Length 12 mm; pronotum 3x3,5 mm. 



Kamerun (Kalkmann), (Wiesbaden Museum, type). 



Sub-fam. Perisphaeriinae. 



D er c aly m ma gig ant ea sp. n. 



$. Large, dark castaneous, nitid. Head elongate, punctate, 

 frons concave. Eyes touching on vertex of head. Antennae uni- 

 colorous piceous. Upper surface granulate. Pronotum with disc 

 cucullate, anteriorly a short median carina, sides broadly flattened, 

 no sulci between disc and lateral margins , posteriorly obtusely 

 produced. Angles of meso- and meta-notum and of all the ab- 

 dominal tergites backwardly produced. Abdomen beneath and 

 legs piceous. All the tergites are much broader than the sternites, 

 so that the abdominal sternites are overlapped very considerably 

 by the abdominal tergites. Supra - anal lamina quadrate , sur- 

 passing the sub-genital lamina. Cerci minute. 



Length 30 mm ; pronotum 9x19 mm ; mesonotum 3 x 20 mm. 



German E. Africa. 



This is a remarkable species of a genus that is characterised 

 by numbers of species resembling each other so closely that it 

 is difficult to distinguish them. Apart from its large size D. 

 gigantca can readily be recognised by the absence of pubescence 

 from all parts of the body except the underside of the tergites 

 where they overlap the sternites. 



Genus Karnyia nov. 

 Both sexes entirely apterous. Head completely covered by 

 the pronotum which is cucullate, without impressions, posteriorly 

 truncate , sides not reflexed , beneath without carinae ; all the 

 thoracic tergites finely fimbriate on their outer margins. Sub- 

 genital lamina (cf ) asymmetrical , without styles. Tibial spines 

 in 3 rows. Tarsi moderately long with large pulvilli , posterior 

 metatarsus scarcely shorter than succeeding joints, arolia small. 



