._! 



r in form. [Jrosome about the length of tin- anterior division, genital seg- 

 ment .scarcely larger than the preceding one, last segment with the anal opercle 

 less prominent than in Cylindropsyllus. Caudal raini some\\ hat fusiform in shape 

 and rather divergent, each with a slender bristle outside near the tip. middle 

 apical seta of normal structure. K\ e inconspicuous. Anterior antenna- rather 

 slender, about equalling in length the cephalic segment, and 6-articulate, 1st joint 

 -liort and thick. 2nd joint .'! times as long and somewhat tapering distally. term- 

 inal part composed of only '2 joints. Posterior antenna 1 with the proximal joint 

 imperfectly snbdi\ idt d in the middle, outer ramus narrow linear in form, with 2 

 Blender seta' on the tip. Mandibular palp with the distal joint short but well detined 

 from the proximal one. Posterior maxillipeds comparatively small, but exhibiting 

 all the parts well detined. 1st pair of legs with the inner ramus shorter than 

 the outer, and having its 2 joints of about equal length. 2nd and 3rd pairs with 

 the inner ramus ver\ small and tipped with a slender spine accompanied by a 

 small bristle, its inner edge in 3rd pair smooth, in 2nd pair carrying a moderately 

 long seta. 4th pair of legs much larger than the others, and resembling in struc- 

 ture those in < ylindropsyllus ; inner ramus, however, considerably exceeding in 

 length the 1st joint of the outer and carrying on the tip a strong spine with a 

 broad fringe of cilia at the extremity. Last pair of legs forming each an oval 

 lamella produced inside to a strong spiniform process, outer part of the lamella 

 fringed with 6 slender setae, within them being an elongated spine. 



Mali still more slender than female, and having the genital segment 

 di-tinctl\ subdivided. Anterior antenna} transformed in much the same manner 

 as in Qylindropsyllus. 2nd pair of legs much larger than in female, and having 

 the 2nd basal joint produced between the 2 rami to an acute lobe curving out- 

 \\ards. terminal joint of outer ramus very large, nearly twice as long as the other 



2 combined, and slightly incurved in its distal part, inner edge exhibiting in front 

 of the middle -2 successive nodilonn prominences, outer edge armed distally with 



3 -I'-mler spines, tip earning a moderately long straight spine terminating in a 

 hook-like point: inner ramus di-tinctl\ Inarticulate, \\ith a short seta at the tip. 

 and another inside the proximal joint. 3 I'd pair of legs much less transformed, 

 inner raniu>. however, as in 2nd pair. Inarticulate, with the proximal joint vei \ 

 short, distal joint acnte|\ produced at the tip. and carrying inside a small bristle. 

 I L8J pair of le-- smaller than in female, and without the spiniform process inside. 



< 'olonr \\hitish. 



Length of adult female 1 .7.') mm. 



l<'ii, mil. . This form, in all essential anatomical details, agrees \er\ closely 

 with the species described b\ Tli. Scot! as CylindropSyttlM ni'titur. It is, how- 



