230 



( 4) 



I have been unable to examine all of the type specimens. The 

 description of new species of /sc7i/(0j>/6'r(i from female examples is 

 strongly to be deprecated. 



KEY TO AFRICAN SPECIES OF ISCHNOPTEDA. 



1. Species ol large size (exceeding 18 mill, in 



total length), legs bicolotous /. cruralis sp. n. (Cameroons) 



1'. Species of smaller size (not exceeding 18 mill, 

 in total length), legs unicolorous. 

 2. Pronotum black with 3 discoidal rufous 



spots /. Boccigci BoL. (Angola). 



2'. Pronotum not as above. , 



3. Unicolorous piceous species 7. /^/cea Schulth. (Somali- 



3'. Not unicolorous piceous species. [land). 



4. Scent-gland opening at base of supra- 

 anal lamina. 

 5. A pair of Ijackwardly-directed chitin- 

 ous processes from beneath the 6th 



abdominal tergite /. ciiinamoinea Gerst. 



[= basalis Gerst.] (Game- 

 s'. No backwardly- directed chitinous [roons). 

 processes. 

 6. Subgenital lamina symmetrical . I. Rohdei ^i. n. (Cameroons). 

 6'. Sub-genital lamina asymmetrical. I. bintaculata Gerst. 



(German E. Afiica). 

 4'. Scent-glands not opening at base of 

 supra-anal lamina. 

 5. Sub-genital lamina very asymme- 

 trical. 

 6. With only one genital style. 

 7. Style slender (fulvo-testactous 



species) I. malagassa Sauss. & Zehnt. 



(Madagascar). 

 7'. Style robust (castaneous species) I. natalensis Walk. (Natal). 



6'. With two styles /, strigosa Schaum. 



[? = incuriosa Sauss. J 

 (E. Africa). 

 5'. Sub-genital lamina less asymmetri- 

 cal, with two styles. 

 6. Supra-anal lamina produced, con- 

 siderably exceeding sub-genital 

 lamina. 

 7. Supra-anal lamina sub-quadran- 

 gular (fulvo-testaceousspecie'', 



pronotum irr.maculate) . . . /. relucens Gerst. (Came- 

 7'. Supra-anal lamina triangular [roons). 



(sordid testaceous species, pro- 

 notum indistinctly bi-macu- 

 late) 7. sonlidii sp. n. (Cameioons). 



