234 Mr. R. Shelford’s Studies of the Blattide. 
germanica, L., and allied species such as P. parenthesis, 
Gerst., P. madecassa, Sss., and P. huwmbertiana, Sss., which 
have the vena ulnaris alarum simple or bifurcate; in 
these species however the triangular apical field is much 
reduced, and for the present they must be regarded as 
forms transitional between the Phyllodromiinz and Kcto- 
biine. The species dificilis, Sss., and massux, Sss., 1 remove 
from the genus Phyllodromia to Theganopteryx ; m these 
the supra-anal lamina is shortly produced or transverse, 
which character in conjunction with the prominent tri- 
angular field and simple or bifurcate vena ulnaris, renders 
their transfer only logical. 
The genus Pachnepteryx, Br., I am unable to place with 
certainty since I have seen no examples and the wing- 
venation of the known species has never been described. 
It is quite evident that Zhyrsocera histrio, Burm., cannot 
be referred to the genus Pachnepterya as suggested by 
Brunner (Nouv. Syst. des Blatt., p. 116, 1865), it belongs 
to the genus Henithyrsocera. I agree with de Saussure 
in relegating Chorisonewra to the sub-family Oxyhaloing 
(= Plectopterinz). 
Genus MALLOTOBLATTA, Sss. and Zhntn. 
Mallotoblatta obscura, n. sp. 
¢. Head, pronotum and tegmina with sparse erect hairs. Rufo- 
castaneous. Vertex, antenne at the base, abdomen, legs and cerci 
testaceous. Pronotum trapezoidal, sides deflexed with the lateral 
and anterior margins hyaline, disc rufo-castaneous with sometimes 
an irregular central macula testaceous in colour. Mediastinal and 
marginal fields of tegmina hyaline ; wings hyaline with the veins 
rufo-fuscous. Tegmina with thirteen to fifteen costal veins, the 
most distal ones branched, radial vein bifurcated, discoidal field 
traversed by six longitudinal veins, anal vein reaching the sutural 
margin at one-third of its length. Wings with nine to ten costal 
veins, their extremities swollen, radial vein bifurcated, median vein 
simple, ulnar vein simple, first axillary vein bifurcated, triangular 
apical field prominent, projecting beyond the anterior part of the 
wing. Anterior femora armed on the anterior margin beneath in 
the proximal half with three long spines, in the distal half with 
numerous short spines (type A of de Saussure); the posterior femora 
are armed with five spines on each border beneath ; the formula of 
the apical spines is 3, 4, 4; a genicular spine is absent from the 
Pe a se 
