Mr. R. Shelford's Studies of the Blattidae. 315 



8'. Lyrate markings of 



pronotum fused . G. aurivillu, Borg. 

 7 . Teguiina with rufes- 

 cent macula on 

 disc. 

 8. SujDra-anal lamina 



short, rounded , G. lurida, Sauss. 

 8'. Supra-anal lamina 

 produced, sub- 

 quadrate, sub- 

 bilobate. 

 9. Antennaj rufo- 

 fuscous or 



fuscous. Dis- 

 tance apart of 

 eyes equals 

 length of 1st 

 antennal joint. 

 10. Eufescent 



macula on 

 disc of teg- 



mina large. G. fervida, Sauss. 

 10'. Rufescent 



macula on 

 disc of teg- 

 mina small, 

 occasionally 



absent . . G. aetata, sp. n. 

 9'. Antennae piceous, 

 nitid. Distance 

 apart of eyes 

 greater than 

 length of Ist 

 antennal joint. 

 10. Anterior part 

 of wings 

 heavily suf- 

 fused with a 

 dark casta- 



neous . . G. caffvorum, Stal. 

 10'. Anterior part 

 of wings not 



as above . G. maculipennis, Schaum 

 Doubtful species G. colini, Rochebr. 



