98 ]Mr. B. F. Cunimings on 



hairs woll spnce<l one beside tlie nflior nml exteiidina; from 

 tlie proximal to tlie distal extremity. Proaxialiy a sinjrle 

 hair. On se^jmeiit 2, three hairs on the upper surface and 

 one lon<j one on postaxial inartrin. On segment 3, at the 

 postaxial anjjle of the distal end, four or five stout hook- 

 shaped denticles ; on the preaxial side a patch of short 

 spines. Preaxially three hairs, postaxially two, on dorsal 

 surface two. 



Thorax and abdomen : cha^totaxy too uncertain to justity 

 description. 



Chcetotaxy. Female. — Antennse more heavily set with 

 hairs. 



Thorax : a short hair on each lateral maroin of the pro- 

 thorax and two on each lateral margin of the nieso-meta- 

 thorax. 



Abdomen : on the dorsal surface, probably a row of small 

 hairs across each seo^ment. 



A moderateh' long bristle on each pleurite of penultimate 

 segment. Several fairly long hairs along lower margin ot 

 tergite, two of these close together at the postero-lateral 

 corner of the tergite. On the terminal sternum two patches 

 of minute hairs, closely set one on each side of the middle 

 line. Along the lower margin of thegonopod, seven or eight 

 longish hairs. 



Month-parts. — The left mandible is a powerful, gnarled- 

 looking weapon, complex in form and moulding*. For the 

 purpose of description it may be divided into halves — a 

 proximal and distal — by a transverse band of dark brown 

 chitin on the ventral surface. 'J'he proximal half is a kind 

 of pedestal on which the rest of the mandible is set. The 

 distal half, narrower than the base, ends in three distinct 

 apices irregularly placed. There are the usual two articular 

 surfaces, one a rounded condyle beneath the basal process, 

 and the other a rather large concavity into which fits a 

 big tendon. The basal process is rather long and bent, 

 as usual, so as to point horizontally. Distally the opposable 

 surface of the mandible possesses the usual transverse ridges, 

 disposed in two series separated from one another by a smooth, 

 concave area. 



'J'he right mandible possesses a wide straight base-line, and 

 from the outside two-thirds of this the main body of tlie 

 mandible arises, leaning outwards at first and then bending 

 inwards sharply, making an angle on the outer margin, 



* The mouth-parts, especially the inandihles and the oesophageal 

 Rclerite (or lyriform organ), afford useful pysteniatic characters in the 

 Mallopbaga. 



