Anxals of the Traxsvaal Museum. 



1-13 



dorsal surface ; j^^ilpi short and thick ; article 11 curved toward tiie 

 ventral surface^ twice as long as article 111 ; hypostome with numerous 

 denticles at tip ; followed by seven or eight rows of strong teeth, three to 

 a row ; below this numerous squamiform teeth ; from middle of hypo- 

 stome downward a fourth row of small teeth along median line ; inner 

 apophysis of mandible transverse, unidentate {Xll, in) ; outer apophysis 

 bidentate. Legs strong, chestnut brown, ringed with lighter colour at 

 distal extremities of articles ; marked wdth punctuations ; coxae I with 

 two short, flat spines, a single spine similar to these, but stronger, on 

 coxae IV {Xll, n) ; tarsi short, thick, stiddenly attenuated. 



Female. — Unengorged, female a little larger than male ; when engorged,, 

 Ijody oval, hat, reaches dimensions of 33 mm. long by 20 mm. wdde. 

 Shield {XIII, d) triangular, scarcely wider (d mm.) than long; posterior 

 lateral sides almost straight ; posterior angle narrow ; scapular angles 

 prominent in anterior points ; eyes in anterior third of length ; cervical 

 grooves deep and wide, prolonged ahnost to the posterior margin ; 

 ]3imctuations unequal ; large ones rare ; fine ones numerous, marked on 

 light areas by black spots ; grotrnd colour bronzy grey as in male, and 

 with spots of brown along the anterior margins, on the cervical grooves 

 around the eyes, on the posterior margin opposite the cervical grooves, 

 and near the posterior third of the lateral areas ; eyes flat, whitish, 

 brown wlien in preservative fluid. Dorsal surface {XIII, d) 

 deep red-brown, wrinkled and deeply punctuated ; a marginal 

 groove ; eleven posterior festoons well marked, dorsal porose 

 areas present. Ventral surface reddish l)rown ; posterior festoons 

 very apparent. When engorged, Ijody becomes light brownish 

 grey, with a few salmon coloured blotches, surface usually 

 covered with a whitish l)loom ; dorsal and ventral surface with grooves 

 as in liebraeuni ; stigmatic plates large, whitish, triangular, with angles 

 rounded ; posterior lateral angle prolonged laterally, but not so much as 

 in male. Rostrum 2.5 mm. long, reddish brown ; porose areas of medium 

 size, almost circular ; liypostome spatulate, numerous denticles at tips, 

 eleven rows of teetli on each half, three teeth to a row ; 

 sqnamose denticles to base ; inner apophysis of mandibles with 

 process transverse, tridentate {XIII, e) ; outer apophysis tridentate ; 

 palpi curved toward the ventral surface from the l)ase of 

 article II, wide, with parallel edges, otherwise similar to those 

 of male. Legs long, strong, chestnut brow^n, ringed with lighter at distal 

 ends of segments. Coxae 1 wdth two sliort teeth, strong, flat, separated ; a 

 triangular prominence flat, on the posterior margin of tlie others, larger on 

 coxae IV ; tarsi II, III, and IV sharply attenuated near their extremity. 



Nymph (engorged). — Body widely elliptical, broadly rounded on 

 both ends, with sides nearly parallel ; u]) to 9 mm. long by 6 mm. wide ; 

 colour dark bluish, changing to a bright brown toward moulting time, and 

 often covered with a coarse brown bloom. Dorsal shield {XIII, h) a little 

 wider than long, broadly rounded on posterior angle, posterior lateral 

 edges nearly straight ; colour uniform dark browm, cervical grooves deep,, 

 then broad and shallow, extending nearly to posterior edges ; punctuations- 

 unequal, large ones very large ; eyes at lateral angles light coloured. 

 Dorsal surface smooth, four anterior furrows ; outer ones broken in 

 middle : three posterior furrows, reaching nearly to the posterior margin, 

 where there are two short furrows l)etween their extremities. Ventral 

 surface with furrows as in female ; stigmatic plates whitish with dark 



