SHELFORD, BLATTODEA. 1/ 



Farn. Pliyllodroiuiidae. 



Gen. Iscillioptora BuRM. 

 The East African species can readily be distinguished from species of Phi/Jlo- 

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

 discoidal sectors of the tegmina and by the asymmetry of the siib-genital lamina and 

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

 known species:— 



1. Testaceous or rufo-testaceous species. 



2. Scent-glands of J" opening at base of supra-anal lamina, which 



is not much produced himacuIataGERST. 



2'. Scent-glands of J',notas above, snpra-anal lamina produced .?/?-/(7osa Schaum. 

 r. Rufo-castaneous or rufo-fulvous species. 



2. Small neutra Sal'SS. 



2'. Larc^er incuriosa Sauss. 



I. sfrigosa Schaum, is reeorded from Älosambique, it cannot be recognized with 

 certainty. /. 7ieutra Sauss. from »Africa meridionalis» is described from a female 

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



Isehuoptera biniaciilata Gerst. 



(PL 3, figs. 10 & 15.) 



Phjllodromia himac%data 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 



Isclmo-plem. The 8»^ abdominal tergite in the male is completely hidden beneath 



the "th 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 



Phyllodromia germanica L. 



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

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

 from Lake Jipe at Kilimandjaro (vox der Decken). 



Var. sobrina nov. 

 ^ and $. Castaneous, margins of pronotum hyaline its disc castaneous. Wings 

 with veins fuscous. 



SjOstedta Kilimandjaro- Meru Expedition. 17. "» 



