301 



peritreina reaehes ventrally more in war d; 5. The anal shielcl is 

 more pyriform, louger; 6. The legs are somewhat louger than in 

 the protonympha. About the hairs of the dorsal and lateral rows 

 the same as the protonympha. Of the ventral rows the outer 

 rows show robust hairs, directed outward, on the followiug joints : 

 leg. 1 : , trochanter, , genu, tibia, 



2 : coxa, trochanter, 2 on femur, genu, tibia, 

 3: , trochanter, (femur) , genu, tibia, 



4: , trochanter, , genu, tibia. 



I have put the femur 3 in parentheses, because I have indivi- 

 duals in which the mentioned hair is minute, and others, where 

 it is robust. 



Fig. 39 is a male, seen from above. Length 1000 p. — Colour 

 between straw- and isabel-colour. — The principal differences 

 between the male and the deutonympha are: 1. Between the 

 palps the two dorsally crooked appendages of the mandibles are 

 visible; 2. The stigma is dorsal. 



Fig. 40. And on the ventral side: 1. The sternal shield is much 

 larger, excavated anteriorly to receive the chitinous ring of the 

 genital aperture, and having angles in the direction between the 

 coxae 1 and 2, and between the coxae 2 and 3 ; 2. There are 

 small intercoxal shields between coxae 1 and 2. 



The males are immediately recognizable, even by a pocket mag- 

 nifying-glass, by their long and slender legs. About the hairs of 

 the dorsal and lateral rows, the same as in the proto- and the 

 deutonympha. Of the ventral rows the outer rows show robust 

 hairs, directed outward, on the following joints: 



leg. 1 : , trochanter, , genu, tibia, 



2 : coxa, trochanter, 1 or 2 on femur, genu, tibia, 

 3: , trochanter, femur , genu, tibia, 



4 : , trochanter, , genu, tibia. 



Fig. 41. Female, dorsal view. The female, delineated by me is 

 a pregnant one, with full grown embryo. — The colour of the 

 unprotected skin is pale; the dorsal shield is red-brown; the 

 coxae and the sternal shield brown ; the legs dark, from straw- 



