314 Mr. R. Shelford's Studies of the Blattidae. 



of head greater 



than thickness 



of 1st antennal 



joint. 



10. Larger species 



(30 mm. in 



length) . . 



10'. Smaller 



species (22- 



24 mm. in 



length) . . 



9'. Distance apart 



of eyes on vertex 



of head less than 



thickness of 1st 



antennal joint . 



7'. Tegmina immaculate. 



6'. Eyes wide apart on 



verte.Y of head. 



7. Smaller species (20 



mm. in length) . . 



8. Tegmina with rufes- 



cent macula on 



disc 



8'. Tegmina without 

 rufescent macula 

 on disc . . . 

 7'. Larger species (30 

 mm. in length), 

 8. Tegmina with rufes- 

 cent macula on 



disc 



8'. Tegmina without 

 rufescent macula 

 on disc .... 



? ? 

 6. Eyes close together on 



vertex of head . . 

 6'. Eyes wide apart on 

 vertex of head. 

 7. Tegmina without rufes- 

 cent macula on disc. 

 8. Lyrate markings of 

 pronotum not 

 fused .... 



G. maculipennis, Schaum. 



G. kazimgulana, Gig.-Tos. 



G. lurlda, Sauss. 

 (r. inconunoda, sp. n. 



G. fervida, Sauss. 



G. aesttmns, Sauss. 



G. caffrorum, Stal. 

 G. aurivillii, Borg. 

 G. hyalina, sp. n. 



G. incommoda, sp. n. 



