1(J8 



An^^als of the Tea^tsvaal Museum. 



Ill swollen, sub-triangular on dorsal surface, transverse crest present 

 on ventral surface; article IV small, sub-conical, in a pit on antero- 

 ventral part of article III. Legs strong; coxae large, contiguous, a& 

 wide as long ; coxae I prolonged anteriorly into a long point wliicli 

 extends beyond the cervical angle of the shield and is t isil)le from 

 above; posterior margin divided into two short, stout teeth, sometimes 

 not very prominent; coxae II and III, with the two posterior teeth, 

 barely indicated ; tarsi terminated by a strong recurved spine 

 preceded by a smaller one on the ventral margin of coxae II, III, 

 and lY ; caruncle almost half as long as the claws ; stiff hairs on all 

 the articles. 



Female. — Bochj elliptical, as wide in front as l)ehind, generally 

 a little constricted in the middle near the level of coxae IV ; length 

 10 mm. by 6 mm. wide; when unengorged, length 2 mm. by 1.1 mm. 

 wide; colour, when unengorged, bluish or yellowish, with darker bands, 

 and lines, shield capitulum and legs light reddish brown, shield 

 lighter in posterior part between cervical grooves; when engorged of 

 a deep bluish colour (brownish in alcohol), with yellowish lines 

 marking the ramifications of the intestines. Shield (1/, d) very 

 small, longer than wide, emargination in front to receive the rostrum, 

 very shallow; lateral edges straight and parallel, then curved and 

 converging from the level of the eyes, posterior angle widely 

 rounded ; cervical grooves diverging, dividing the shield into three 

 unequal parts, the middle portion widest and flat, the lateral portions 

 arched ; eyes small, near the anterior third ; punctuations small and 

 few; hairs numerous and long, mostly in cervical angles of ^he shield. 

 Dorsal surface, with three antero-posterior grooves, interrupted near 

 the middle, stopping a little distance from the shield and posterior 

 margin, all of these nearly effaced in extreme engorgement; a few 

 short hairs present on all the surface, each in a deep pit Vvdien 

 unengorged. Ventral surface same colour as dorsal, and with hairs 

 same; sexual orifice small, very anterior, narrow, opposite coxae I; 

 sexual grooves commencing at level of coxae II, slightly divergent, 

 and extending to near posterior margin ; stigmatic plates a very 

 short oval, nearly circular; anus near posterior third; no anal groove; 

 ano-marginal groove long. Rostrum { VI, d) like that of the male in 

 form, larger, base a little wider, more salient in front of shield into 

 which it does not fit so deeply; mandibles {VI, e) with transverse 

 process of inner apophysis, bicuspid, outer apophysis with three 

 teeth, two lower teeth large and strong, anterior small and sub- 

 terminal; hypostome as in male; palpi as in male, except that they 

 are longer. Legs rather short and slender, first pair shortest, 

 yellowish brown in colour ; coxae longer than wide, coxae I sub- 

 triangub' • -posterior margin divided into two teeth, more or les? well 

 develops • coxae II, III, and IV with posterior teeth ])arely 

 indicated; tarsi as in male. 



NympJi. — Body elongate, oval, very narrow behind and wide in 

 front; length 1.3 mm. by 0.9 mm. wide when unengorged, when 

 engorged 2 mm. long by 1.3 mm. wide. Colour light, yellowish or 

 greyish with dark streaks and lines, as in unengorged female. 

 SJiiehl legs and capitulum light reddish brown, with a red spot 

 lateral of the cervical grooves on the shield ; lateral areas of shield 

 darker coloured. Shield longer than wide, lateral angles near the 



