412 Annals of the South African Museum. 



namaqua $ ; and the crest, which is much less conspicuously raised, is 

 not continuously arcuate from tip to tip ; the humeral ridge is not as 

 strongly defined by a series of sharp tubercles as in Cystocoelia, and 

 the tegmina are very rudimentary. It is evidently a form of transition 

 between Pneumora and Cystocoelia. 



Length 52 mm. 



Hob. Cape Province (Bushmanlaud). Henkries ; R. M. Lightfoot. 



SHORTRIDGEA, n. gen. 



Although in many characters the species included in this genus does 

 not differ much from Cystocoelia, yet the general appearance in each 

 sex is so unlike, that a new genus should be founded for its reception. 



In the (J the pronotum is highly carinate, and very tectiform in the 

 anterior part, the ridge overhanging the sides ; in the $ the pronotum 

 is very highly cariuate and the sides expanded in such a way as to 

 greatly overhang the sides ; the tegmina and wings are short, and 

 rudimentary- 



V 



SHORTRIDGEA MIRANDA, n. sp. 



( <J fig. 2, ? pi. xlii, fig. 2.) 



J . Green, with the crest of the pronotum slightly flavescent ; head 

 smooth ; pronotum arcuate, a little more dehiscent in the anterior part 

 which overhangs the much reduced anterior lobe which is not cristate 

 and has only two distinct folds, the moderately sloping sides are 

 strongly cariuate for one-third of the length, the carina bearing a 

 series of red granules, the edge of the saddle-like sides are much 

 rounded, the carina is simple, the surface of the pronotum is foveolate 

 reticulate, and there are two long and an accessory distinctly raised 

 veins giving it a foliate appearance, here and there are scattered a 

 few red granules ; the long, closely reticulated but not shiny tegmina 

 have, towards the median part, a small, slightly arcuate, white patch ; 

 the abdomen is totally concolorous ; the tibiae are impressed, but the 

 round impressions are not tuberculate. 



Length 63 mm. ; wings expanded 125 mm. 



$ . Green, turning to greenish-yellow after death ; head quite 

 smooth ; discoidal surface of the pronotum more distinctly reticulate 

 on the flattened sides and also along the crest, which is simple, the 

 disk is divided by a longitudinal rib or vein, the apex of the posterior 

 lobe, which is truncate and higher there than the non-crested anterior 

 lobe, is pinkish-white, and along the red-tuberculated humeral ridge 

 runs a silvery line, developing into a large triangular patch of the 

 same colour above and connected with the sinuation of the lower 



