SHELFORO, RLATTODEA. 17 



Farn. Phyllodroiiiiidae. 



Gen. Isrhiioptcra Bubm. 



The East African species can readily be distinguished from species of Phyllo- 

 dromia, not only by the wing venation but also by the longitudinal, instead of oblique, 

 discoidal sectors of the tegniina and b}' the asymmetry of the sub-genital lamina and 

 styles in the male sex. The foUowing table will assist in the determination of the 

 known species:— 



1. Testaceous or rufo-testaceoiis species. 



2. Scent-glands of c^ openingat base of s'upra-anal lamina, which 



is not much produced bimaculafa Gerst. 



2'. Scent-glands of J", not as above, supra-anal lamina produced strigosa Sckavm, 

 r. Rufo-castaneous or rufo-fulvous species. 



2. Small neutra Sauss. 



2'. Larger incuriosa Sauss. 



/. strigosa Schaum, is recorded from Mosambique, it cannot be recognized with 

 certainty. /. neutra Sauss. from »Africa meridionalis » is described from a feniale 

 only and appears to differ in size only from /. incuriosa Sauss. 



Ischiioptera biinaenlata Gerst. 

 (PI. 3, figs. 10 cC- 15.) 



Phyllodromia himaculata Gerstaecker, Arch. Naturg. XXXV, p. 206 (1869); 

 Von der Decken, Reisen in Ost-Afrika III (2) p. 4 (1873). 



Gerstaecker's description does not include an account of the wing structure 

 in this species ; the venation is somewhat variable but at least two branches of the 

 ulnar vein fall to reach the outer margin of the wing and are directed towards the 

 dividing vein. On account of this character the species must be placed in the genus 

 Ischnopiera. The 8^1^ abdominal tergite in the male is completely hidden beneath 

 the 7*'' tergite, the 9*'^ tergite is also invisible and the base of the supra-anal lamina 

 is depressed forming a cavity fringed with hairs, the scent glands open on the sides 

 of two chitinous tubercles in this cavity. The sub-genital lamina is very irregulär 

 and notched on the left side, a style being situated in the notch, the right style is 

 stouter and spinöse, the apex of the lamina forms a hirsute lobe. Ootheca as in 

 Phiillodromia germanica L. 



Kilimandjaro: Kibonoto, lower slopes and 1,300 — 1,900 metres, under dead 

 leaves in banana plantations. 21 ^^, 25 ??. The species was originally recorded 

 from Lake Jipe at Kilimandjaro (von der Decken). 



Var. sobriua nov. 



c? and ?. Castaneous, margins of pronotum hyaline its disc castaneous. Wings 

 witli vcins fuscous. 



Sjöetedts KiliiiKimljaro-Meiu Expeditirm. IT. 3 



