40 



[Febraary, 



Apterous Viviparous Female. — Elongate, narrow, flat, browu above, much 

 paler beneath, rugulose. Atifetmae 5-segmented, short, reaching to the pos- 

 terior margin of the prothorax, pale yellow at base, darker at the tips ; 

 segment I somewhat longer than broad, with 3 spines; II a little shorter than I, 

 with 1 spine and what appears to be a small sensorium near the tip; III almost 

 thrice the length of II, with 2 spines on the anterior edge, faintly imbricate 

 on distal half; IV a very little longer than II, with 1 spine; V somewhat longer 

 than III, the spur a little longer than the base, 2-3 short spines at tip, primary 

 sensorium compound. The proportions of the segments are 17, 12, 35, 13 



Fig. 1. — Atheroides serrulatus Halld. (The rugosities have not been indicated.) 

 Viviparous $ and antenna. 



(17+23). Head with 2 lateral groups of 4 strong spines. Prothorax as long 

 as the head, mesothorax a little longer than the prothorax, inetathurax about 

 half the length of the preceding, all with short spines. First abdominal segment 

 equal to the metathorax in length, remainder of abdomen more sparsely spinose 

 on dorsum, but margin more closelj' set with spines which get gradually longer 

 towards the apex. Apical segment distinct, twice as broad as long, set on 

 ■margin with long strong spines on tubercles. Cornicles mere pores situated 

 towards anterior edge of 5th abdominal segment. Leys yellow, tips of tibiae 

 and tarsi darker, hind pair with numerous fine hairs. 



Me(i!^iiremepts: Antennae '47 mm., head '26 mm., pvothoi'flx "26 mm., 

 mesothorax "29 mm., metathorax '16 mm., 1st abdominal segment "16 mm. 

 Hind leg: femur •od mm., tibia -52, tarsus + uuguis 'l-l mm. Total length 

 2"00 mm. 



