length of the 2 preceding ones combined, and conspicuously widening distally. 

 Caudal rami rather broad, and somewhat shorter than the anal segment, with 

 the inner edge finely ciliated, outer edge exhibiting, at some distance from the 

 end, a distinct ledge, to which the outermost seta and the very small accom- 

 panying dorsal bristle are attached; apical setae comparatively short, but rather 

 coarse and densely ciliated. Anterior antennae not nearly attaining half the length 

 of the cephalic segment, and composed of 9 joints rather densely clothed with 

 short, but rather coarse, curved setae, 3rd joint much the largest, terminal joint 

 club-shaped and about the length of the 2 preceding joints combined. Posterior 

 antennae with the terminal joint shorter than the penultimate one, apical setee 

 spiniform, the middle one, as usual, the longest. Siphon extending about midway 

 between the insertion of the posterior maxillipeds and that of 1st pair of legs. 

 Mandibles minutely denticulated at the apex. Maxillae with the outer lobe scarcely 

 half as long as the inner, apical setse on both lobes very slender and curved. 

 Anterior maxillipeds with the dactylus very strong and evenly curved in its distal 

 part, terminating in a blunt point; secondary spine of moderate size. Posterior 

 maxillipeds still more powerful than the anterior ones, with the dactylus exceedingly 

 strongly built, its proximal joints being unusually stout, with the spines issuing 

 inside very coarse, terminal claw occupying rather more than half the length of 

 the dactylus. Natatory legs well developed, with the rami comparatively broad; 

 inner ramus of 4th pair, however, considerably narrower than the outer and also 

 somewhat shorter. Free joint of last pair of legs slightly produced, oblong 

 quadrangular in form, and carrying at the tip one long and 2 short bristles. 

 Ovisacs of moderate size and globular in shape. 



Body of a light yellowish grey colour and ornamented with a number 

 of very conspicuous brick-red patches, 2 median, the one occupying the front 

 part of the cephalic segment, the other the dorsal face of the 3 succeeding 

 segments, and 3 lateral on each side, the 2 anterior pairs occurring on the 

 cephalic segment, the posterior pair on the projecting epimeral lappets of the 

 3rd segment ; ova in the ovisacs of a yellowish red colour. 



Length of adult female amounting to 1.70 mm 



Remarks. This form was at first recorded by Brady and Robertson as 

 a species "of the genus Dy^ontiu^^ and was subsequently by the first-named 

 author erroneously referred to the genus Artotrogus of Boeck. This mistake was 

 corrected by Giesbrecht, who found it to agree much better with the genus 

 .Brady pontiits, to which it was indeed at first referred by that author. After 

 having examined more closely a specimen sent to him by Scott, he felt how- 

 ever justified in excluding it also from this genus as the type of a new nearly 



