228 ( 2 ) 



length of tegmina (/ 7 mill.; $ 5 mill.; pronotum (/ 2 X 3 mill., 

 $ 3 X 4 mill. 

 Congo State, Banana (F. Busschodts). 



^cfcf, 1$. 



Allied to 2\ congoensis but distinguished by the marked sexual 

 dimorphism, tlie different wing-venation and darker pronotum. 



ISCHNOPTERA SORDIDA sp. n. 



f/and 9. Sordid testaceous. A band between the eyes and some 

 spots on the face castaneous. Pronotum with two castaneous 

 blotches, irregular in shape, on the disc. Tegmina with radial vein 

 bifurcate, 14 costals, 9 longitudinal discoidal sectoi's, anterior ulnar 

 3-ramose. Win>is infuscaled. mediastinal vein 5-ramose, radial vein 

 bifurcate, 6-7 costals, ulnar vein 7- ramose, 4 of the rami being 

 incomplete. Supra-anal lamina, (1^^) produced, triangular, con- 

 siderably exceeding the subgenital lamina, ($) trigonal, apex deeply 

 incised. Opening of scent glands in male, situated in 8th abdominal 

 tergite. Sub-genital lamina ((^f) slightly asymmetrical, with two 

 styles. Cerci moderately long. Front femora armed on anterior 

 margin beneath with a complete row of spines, the distal shorter 

 than the proximal. 



Total length 16 mill.; length of body 12-13 mill.; length of teg- 

 mina 13 mill.; pronotum 4 X 5,2 mill. 



Cameroons, Mundame Mungo (Oxford Museum, types), Mukonje 

 Farm (Brussels Museum, a long series). 



Allied to /. punctifrons Gerst. 



ISCHNOPTERA ROHDEI sp. n. 



(^ and $. Above castaneous, lateral margins of pronotum and of 

 tegmina at base testaceo-hyaline. Head testaceous, vertex and some 

 maculoeon the face castaneous; antennae castaneous, exceptat base. 

 Disc of pronotum with paler castaneous suffusion, inner border 

 of testaceous margin sinuate, anterior margin narrowly llavo- 

 lestaceous. Tegmina exceeding apex of abdomen, radial vein 

 bifurcate, 17 costals, 9 longitudinal discoidal sectors, anlei'ior ulnar 

 3-ramose. Wings infuscaled, mediastinal vem multiramose, radial 

 bifurcate, 10 costals, ulnar vein with 7 rami, 2 being incomplete. 

 Supra-anal lamina, (q) trigonal with scent-gland opening at base, 

 apex slightly incised, ($) trigonal, apex slightly incised. Sub genital 

 lamina ((^f) rotundate, symmetrical, with 2 short styles situated in 



