190 Transactions. 



Length, 26 mm. 



hoc— Mount Algidus (T. Hall). 



Subspecies elidus n. subsp. differs from the type in having more slender 

 permit and anal legs (proportions, length to breadth, penul femur 2-0, anal 

 femur 2-3, prefemur 24, tibia 2-3) and in having the tergal sulci continuous 

 from the 7th to half-way along the 20th tergite. 



Length. 33mm. 



Loc— Cass (G. A.). 



Cryptops pelorus n. sp. 



Colour light orange, head darker. Head overlapped by 1st tergite. 

 Tergal sulci complete from 6th to 19th segments, and extending a short 

 distance along 20th. Anal tergite slightly narrowed posteriorly, caudal 

 portion triangular with rounded apex. Prosternum with convex well- 

 chitinized anterior margins, slightly inclined mesial ly, with 2 or 3 fine sub- 

 marginal hairs. Sternites with cruciform sulci from 2nd to 18th segment, 

 indistinct on 19th ; transverse arm recurved and more distinct than longi- 

 tudinal ; the latter reaches the anterior margins of the sternites, but is only 

 a short depression behind the transverse arm. Anal sternite with convex 

 posteriorly converging sides, angles rounded, caudal border distinctly 

 emarginate. Coxopleurae rounded posteriorly, pores 100, varying in size 

 but not very large, about 10 short setae terminally, pore-free margin 

 moderately wide. Femur of penult leg with a few spinescent setae above 

 and at the sides, ventrally densely covered with rather short hairs ; pre- 

 femur and tibia with a few long slender hairs above and dense short 

 hairs below ; femur twice as long as wide. Anal leg : femur 2-3 times 

 as long as wide, moderately provided with spinescent setae at the sides 

 and with rather long hairs above ; prefemur 2-2 times as long as wide ; tibia 

 with straight dentate edge, 1st tarsal joint with strongly developed dentate 

 keel ; dental formula 2 + 10 + 7 (6). 



Length. 27 mm. 



Loc— Type, Pelorus Valley (T. B. Smith) ; Ohakune (T. R. Harris). 



Cryptops lamprethus Chamberlin. 



Cryptops lamprethus Chamberlin, Bull. Mus. Comp. Zool., vol. 64 r 

 p. 4, 1920. 



" Type, M.C.Z. 1925. Paratype, M.C.Z. 2031. New Zealand : Piimmer- 

 ton, Taumarunui, August, 1914 (W. M. Wheeler). 



" Colour ferruginous. Cephalic plate without sulci. Paired sulci com- 

 plete first on 8th dorsal plate. Prosternum presenting a straight chitinous 

 anterior edge which is not at all or but vaguely and very slightly angu- 

 lateat middle, without hairs. Sternites each with a cruciform impression, of 

 which the longitudinal furrow is wider and deeper and the transverse one 

 curved with concavity cephalad ; last 3 or 1 plates lacking this impression. 

 Last ventral plate without sulci, narrowed caudad, caudal margin straight 

 or slightly incurved. Spiracles large, longitudinally elliptic. Coxopleurae 

 short, caudally subtruncate, pores large and small, numerous, in numerous 

 rows, not reaching caudal margin. Anal legs missing. Penult legs clothed 

 ventrally with dense very fine hairs, in striking contrast with the much 

 longer and coarser hairs and setae laterally and above. 



" Length, 28 mm. 



