396 University of California Publications in Zoology [Vol. 19 



8. Titsonobolus uncopygus, sp. uov. 



Description. — In general the prozonites fulvous, this color en- 

 croaching upon the metazonites below, and the metazonites black, with 

 this color encroaching upon the prozonites at and above the pores. 

 Collum dark, blackish or dusky chestnut, the head and anal segment 

 similar. Legs light chestnut. 



Head with vertex roughened by numerous shallow depressions 

 which are densely arranged. Vertigial sulcus distinct to or below 

 level of middle of eyes. Antennae short, lying in a deep excavation 

 below eyes and completely concealed, or nearly so, by the collum (cf. 

 pi. 28, fig. 29). 



Collum narrowed down each side, rounded below ; not at all mar- 

 gined or striate; finely punctate. Second tergite extending a little 

 below ends of collum and forward beneath latter to its anterior edge, 

 the lower edge nearly straight, longitudinal depressed anteriorly and 

 above lower border for reception of contiguous part of collum ; punc- 

 tate, not at all truly striate (cf. pi. 28, fig. 29). Third tergite also 

 produced a little ventrad, with ventral region of segment also concave. 

 The fourth and fifth segments intermediate between this and the 

 normal form. Each prozonite of the typical segments marked below 

 and on the sides with numerous striae curving forward and then 

 dorsad, and branching, and more or less anastamosing; the striae in the 

 dorsal region all transverse and more lightly impressed, branching 

 and anastamosing ; just in front of suture or furrow above are numer- 

 ous strong punctae and impressed semicircles and crescents. Meta- 

 zonite crossed by longitudinal striae below, the series not attaining 

 the middle of side, the surface elsewhere smooth. The segmental 

 suture represented by an impression or furrow rather than a sharp 

 line. Pore separated from suture or furrow by from half to its entire 

 diameter. 



Cauda cylindrical, acutely pointed, strongly curved downward, its 

 tip at about middle height of valves. Anal valves with mesal borders 

 broadly and strongly elevated, in lateral view subangular at caudo- 

 ventral corner. Anal scale with caudal edge long and nearly straight 

 (cf. pi. 28, fig. 30). 



Number of segments : forty-six. 



Measurements. — Length, about 72 mm.; width, 8.2 mm. 



Locality. — India : Coonoor, April 16, 1916. Three females. 



