182 Transactions of the Boyal Society of South Africa. 
anteriorly-hinged valve or flap of dark brown secretionary matter occupying approximately 
the area indicated by the dotted line in Fig. 4 ; the line of attachment being immediately 
beneath the insertion of the posterior legs, its exact course being indicated by large gland- 
tracts, the largest of which are hidden beneath the legs. Epidermis covered with minute 
hairs and circular glands. 
Long 14-20-5, wide 11-15, high 7-10 mm. 
Larva elongate ovate, above with median, subdorsal, and marginal bands of spiny 
hairs. Antennae of 5 joints, of which 5 is equal in length to 2, 3, and 4 together : 
formula 5, 3, 2, 1, 4. Legs very long and slender; digitules to claw very fine simple 
hairs ; claws faintly tridentate. Anal ring without hairs. 
6258 well-matured larvae were counted from the anterior of a single ? . 
Hab. On an unknown tree, Zomba, Central Africa. Collected by H.B.M. Com- 
missioner A. Sharpe, C.B., 1900." 
Collected by Eupert W. Jack in ants' nest, Ummati Eiver, Ehodesia, 
October 30, 1911. 
Collection No. : E 15. 
57. x\spiDOPROCTUS TRicoRNis (Newstead). 
(Plate XXIV., Figs. 51, 51a, 516. Plate XXVII., Figs. 66 and 66a. 
Plate XXVIII., Figs. 68 and 68a.) 
Loi^liococcus mirahilis var. tricornis, Newstead, Schultze, Zool. u. anthro. 
Ergeb. einer. Forsch. im. w.u.z. Sudafrika, p. 16, 1912. 
Professor Newstead's description is as follows : — 
" ?. Adult: Dark castaneous, in alcohol; external surface faintly polished. Form 
roughly hemispherical with three enormous horn-like projections on the dorsum, arranged 
transversely in the form of a trident ; the middle one, the longest, measures 7 mm. from 
base to tip and is equal to the width of the body at the margin ; lateral horns 3'5 mm. long, 
project considerably beyond the sides of the body ; all the horns are rather flat at the base 
but have rounded ends ; margin strongly and irregularly crenulated, the prominences being 
bluntly spinose ; posterior margin deeply emarginate. Ventral orifice covered with a 
secretionary flap. Derm of venter densely clothed with strong, narrow, lanceolate spines 
in the mid-region between and surrounding the legs ; beyond this the spines are few in 
number and smaller. Spinnerets at the margin of the large ventral orifice packed closely 
together ; these present a large quatref oil-pore. Antennae of 10 segments, the last in 
length equal to the three preceding ones ; all the segments with fine hairs. Legs well 
developed and stout, resembling those of other Monophlebids. Length at base 7 mm. ; 
width 7-50 ; height from base to tip of middle spine (longest axis) 10 mm. ; expanse of 
lateral spines 11 mm." 
Habitat : On Acacia rohusta. 
Collected by Miss Impey, Pretoria, November 9, 1914 ; also found by 
the writer on thorn-trees in front of the Union Buildings, Pretoria, 
November, 1914. Some females were collected, and larvae emerged in 
December, 1914, and January, 1915. 
