ORIBATOIDEA SINENSIS I 125 



Camerostome decidedly inferior, overhung by rostrum 

 anteriorly and enclosed by rostrum and ventral plate 

 laterally, closed posteriorly by the hypostomal plate which 

 is short, rapidly tapering anteriorly and emarginate at its 

 tip, its surface with two pores each bearing a fairly long 

 bristle, these pores situated in slight grooves which are 

 produced anteriorly as lines. Mandibles normal for the 

 group. Palps with five segments, the proximal segment 

 short, somewhat triangular; second segment wide and 

 heavy, nearly as long as distal three, sub-cylindric with 

 three bristles, a long one on each side and the third 

 ventral; third segment narrower, twice as short and 

 tapering distally, with one long curved bristle; fourth 

 segment still smaller, sub-cylindric, with two or three 

 bristles, the posterior one being the longest; distal segment 

 tapering by steps, thickly haired, all hairs curved anteriorly 

 or dor sally. 



Ovipositor (fig. 9) with three short "suckers'' at 

 base; basal segment short, broad, slightly tapering; second 

 segment equal in length to first but smaller in diameter 

 proximal end with flexible joint so that the ovipositor 

 may be bent forward at right angles to first segment 

 or parallel with body; third segment nearly twice as 

 long as second but of smaller diameter; "fingers," three, 

 each slightly curved dorsally just anterior to their center, 

 each with three or four bristles on exterior (description 

 based on but one specimen and therefore not necessarily 

 accurate). 



Legs well developed; ungues tridactyle, weekly hetero- 

 dactyle; tibia I the broadest, tibia IV the longest and 

 most slender, genual I the longest and broadest, genual III 

 the shortest, femur II the longest, coxa III the largest. 

 Leg I (fig. 5) has three plumose hairs on lower side of 

 tarsus, five fine bristles at apex, two on the outer side, 

 four on the dorsal side, two of which are fairly long and 

 curved, and one on inner side; tibia very wide dorso- 

 ventrally at distal end, with two plumose hairs on lower 

 side, the posterior-most being but weekly plumose, a bristle 

 on outer and lower side, one on inner and upper side, and 

 two on dorsal side the posterior-most being extremely long 

 (the longest one on the body) all these bristles are situated 

 on the anterior half of the article; genual with a weekly 

 plumose hair on ventral side and a long curved bristle 

 on dorsal side, somewhat angled at proximal end; femur 

 large wide, blade-like, bent and tapering proximally, with 

 two weekly plumose hairs on dorsal side and one on ventral 



