308 Records of the Indian Museum. [Vor Vea 
describe the Kurseong specimen under the name Aldluaudella 
himalayensis; and to redefine the genera Cardax and Alluaudella 
in accordance with the fresh facts brought forward. 
I have to thank Mr. Green for lending me his series of 
specimens of Cardax willeyi, including several of the collection 
of which the part sent to Shelford formed the basis of the original 
description of the species. 
Variation in the venation of CARDAX WILLEYI, Shelford. 
The venation of both the tegmina and wings of Cardax willeyt 
consists of a series of well-defined veins whose origin is practically 
coincident with the origin of the tegmen (or wing), and which run 
direct to the margin of that organ, giving off but few branches in 
their course ; and of a series of ‘‘ secondary’’ veins having as a rule 
no defined origin and lying singly between these ‘‘ primary ’’ veins 
as they may be termed. The branching of the primary veins is of 
two kinds. Firstly, branching near the origin, to form in all six 
long veins which it will be convenient to refer to as primary veins 
Es é—F 
Diagram of the venation of the tegmen of CARDAX WILLEYI (.”). 
The lettering of the veins corresponds to that used provisionally in the text; 
the probable relation of these veins to those found in more highly organized 
cockroach wings is described on p. 310. In the tegmen of Cardax willeyi the only 
difference between the nomenclature here advocated and that adopted by 
Shelford in his description is that Shelford regards “vein C’’ as a fork of the 
radial instead of as a distinct vein corresponding to the vena spuria. Primary 
veins are indicated by heavy lines; secondary ones by dotted lines. Vein f is 
shown by a heavy line, as it is at least as likely to correspond to a true branch of 
the anal (7.e., to correspond strictly to an axillary vein of other forms) as to be one 
the series of secondary veins which are here supposed to have possibly arisen de 
novo in the degenerate forms. 
A—F respectively ! (see text fig.) ; these branches ariseina manner 
which appears to be constant, and to be the same in all three 
species of cockroach particularly dealt with in the present paper, 
differing, however, in the tegmina and wings. And, secondly, 
branching which occurs nearer the margin of the wing, which is 
variable—except perhaps in the case of vein E of the wing which in 
every specimen I have seen is forked, the division occurring further 
1 In order to avoid confusion: the relation of these veins to those of more 
typical cockroaches will be considered later. 
