I 



Animals of the Tkansvaal Museum. 141 



■surface often swollen^ greenish grey^ witli the marginal chitinons, reinforce- 

 ments brownish^ se23arated by grooves and corresponding to the dorsal 

 festoons ; sexual orifice opposite coxae 11^ wide^ anterior valve cliitin(nis, 

 sexual grooves at Urst almost parallel^ then very divergent between coxae 

 IV and the anus ; anus near the posterior (juarter ; hairs very short on all 

 the ventral surface ; stiginatic plates white, witb chestnut margins tri- 

 anguJar with rountk'd angles^ the postero-Jateral angles well marked. 

 Host rum [All I, a) 2 mm. long ; base concave on its posterior margin, lateral 

 margin convex ; mandibles {XII, h) with inner apophysis sub-terminal, 

 transverse, festooned in three points, one median, and two lateral, of wliicli 

 the inner is elongate transversely ; outer apophysis with two teeth, the 

 terminal small, the other very strong ; hypostome a little spatulate, numerous 

 denticles on the tip, followed by three then by four rows of teeth on each 

 half, which gradually diminish and become squamiform on the basilar half 

 of the organ ; palpi lA mm. long ; article I with its ventral surface twuce 

 -as long as the dorsal and prolonged on tlie inner edge by an obtuse point 

 over article 11 ; article II twice as long as article III, and prolonged on its 

 extero-dorsal l^ase into a hat point over the first ; bairs rather long on the 

 two edges of the convex surface of articles II and III. Legs thick, reddish 

 brown : coxae contiguous {XII, /) ; coxae I divided into two blunt spines ; 

 the outer longer ; coxae 1\ with a single strong spine ; coxae II and III 

 imaruied ; the other articles, save the tarsi, ringed with whitish colour on 

 their distal extremities ; tarsi I at least four times as long as wide, 

 .suddenly attenuated near the extremity ; tarsi II, III, and YV at least three 

 times as long as wide, with two strong consecutive spines ; caruncle reach- 

 ing scarcely to the middle of the length of the claws ; short hairs on all the 

 .artich's. 



Female. — Body almost the same form as in the male, relatively 

 narrower, dimensions ordinarily a little larger, e\'en wdien young ; colour 

 generally deep greenish brown, except the shield, the rostrum, and the 

 legs, which are deep reddish brown. Shield triangular in its posterior 

 two thirds, with posterior angle rounded, a little wider (o mm.) than long, 

 dee]) brown, sometiuies with a reflection or spot of greenish metallic red in 

 the centre or near the posterior angle and the origin of the cervical 

 grooves ; cervical grooves deep in front, ])rolono'ed almost to the posterior 

 margin ; punctuations deep, large, une([ual, very numerous, often con- 

 tiguous ; eyes near the anterior ([uarter, similar to those of the male. 

 Dorsal surface unicoloured, deep green, a marginal groove situated ai; a 

 nearly uniform distance from the margin, forming the anterior margin of 

 the eleven posterior festoons, which are scarcely longer than wide. A 

 median groove, extending from the median festoon to a certain distance 

 from the shield ; two lateral grooves, concave outward, beginning at the 

 •space between the penultimate and antepenultimate festoons ; punctuations 

 deep, equal, scattered over all the surface. Yeiilral surface deep green, 

 similar to that of the male ; sexual orifice narrower ; marginal festoons 

 not chitinous ; an ano-marginal groove ; stigmatic plates larger. Bostrum 

 {XII, h) 2.6 mm. long, similar to that of the male, except in the following 

 particulars : porose areas present and large, oval digit of mandibles with 

 inner apophysis bicuspid, base swollen ; outer a])ophysis with three teeth, 

 the two posterior strong. Ler/s rather longer, hairs rather long ; spine of 

 coxae IV reduced to a flat tuloerosity ; the jieiiultiinate tarsal s])ine 

 atteuiiat-xl, often almost effaced. 



The fecundated and engorged female can reach the largest dimensions 

 of the family (24 mm. long by 15 mm. wide, and almost as thick). At first 



