FROM THE SOCIETY S GARDENS. 



265 



margin of the head, the " thumbs " and claws of the second and 

 third pairs of legs, and also at the extremity of the abdomen 

 in the bays, one on each side of the base of the finger-shaped 

 genital papilla in the male. The tergites are of a light brown 

 colour, and each antennal segment is similarly banded. Across 

 the distal broad part of the tibiae of the front legs is a com- 

 paratively narrow, transverse, brown band. Coxse of a uniform 

 deep blown colour. 



Male Gopulatory Apparatus {text-G.g. 5). — Basal plate : Broader 

 than the plate in the two preceding species of Linognathus. At 

 the base it is slightly bifid, each short limb being a process for 

 the articulation of a paramere. A suture is observable in the 

 median line of the plate, extending from the cleft between the 

 two basal processes up to just beyond half the length of the plate. 

 This groove or suture, which indicates the originally double 

 nature of the plate probably throughout the Order, lies in a 

 narrow thickening in the mid-line of the plate, on each side of 

 which the chitin is flattened and thinner. At the upper end the 

 plate is of a uniform thinness and is a little broader. Parameres : 

 These are long, narrow, and tapering to an acute apex. Towards 

 the base each paramere develops on its inner side a kind of 

 supporting ledge or shelf which runs in below the mesosome. 

 The outer side becomes thickened and turns in almost at right 

 angles on arriving at the basal plate, with the limb of which 

 on each side of the cleft it is connected. Penis : Although it is 

 impossible to speak definitely when the apparatus is in the 

 retracted state, I think it is fairly safe to assume that the loop- 

 like apertures marked P in text-figs. 1, 2 & 5 are homologous. 

 jSTow, in L. linmotragi this aperture obviously lies at the tip of 

 the penis, whereas in the present new foi-m it is seen lying 

 within the chitinous bars marked End. It may therefore 

 be supposed that the distal end of the penis-tube with the 

 aperture is here telescoped into the firm chitinous base, which 

 may be either endomeral or the base of the penis. The pseudo- 

 penis (Ps.P.) is also probably an endomeral chitinisation. 



Measui-einents (onUlimetre scale). 



