340 



Journal of the Department of A(4Riculture. 



EXPLANATION OF PLATES. 



-Fowl Tick {Aryas pcrsicus), adult. 



-Tampan Tick {Ornithodorus mouhata), adult. 



-Spinose Ear Tick (0. viegnini). nymph. 



-Spinose Ear Tick (0. mpgnini), adult. 



-Sheep Paralysis Tick (Ixodes pilosiis), male (upper surface). 



-Sheep Paralysis Tick {Ixodes pllosus), male (under surface). 



-Dog Tick {Hacmaphysalis leachi). male (upper surface). 



-Dog Tick (Haemaphysalis leachi), male (under surface). 



-Red Tick {lihipicephalus cvertsi), male (upper surface). 



-Red Tick (BhipicephaJiis evertsi). male (under surface). 



-Cape Brown Tick (li. capensis), male (upper surface). 



-Black-pitted Tick {B. simus), male (upper surface). 



-Brown Tick (B.. appendictdatus). dorsal surface of male (after Nuttall). 



-Brown Tick {B. appendiculatn^). ventral suriace of male (after Nuttall). 



-Brown Tick {B. appendiculatus), dorsal surface of female (after 



Nuttall). 

 -European Brown Tick (B. sanguineus), dorsal surface of female (aftei- 



Cun'liff). 

 -European Brown Tick (B. sanguijieus), dorsal .'surface of male (after 



Cunliff). 

 -European Brown Tick (7i*. sniuiHineus). ventral surface of male (after 



Cunliff). 

 -Life-cycle of the Brown Tick {B. appendiculatus). 



n. Eggs; c. unengorged larva; /. engorged larva; h. unengorged 

 nymph; g. engorged nymjjh ; d. male; h. unengorged female; 

 e. engorged female. 

 -Argentine Tick {Murgoropvs u-itlirmi), male (dorsal surface). 

 -Argentine Tick {Margaropvs iriffumi). engorged female (dorsal 



.surface). 

 -Blue Tick (Boophilus decolorafus), male (dor.sal surface). 

 -Blue Tick (Boojjhihis decolorat u s) , male (ventral .surface). 

 -Blue Tick (Boophilus decoloratus), engorged female (dorsal surface). 

 -Bont Leg Tick (Hi/alomma impressum), male (dorsal surface). 

 -Bout Leg Tick (Ilyalomma impressum), male (ventral surface). 

 -Bont Tick (Amhlyomma hchraeum), male. 

 -Bont Tick (Amhlyomma hchraeuiti), female. 

 -Variegated Tick (A. varirgafum). male. 



REFERENCE LETTERS. 



A. — Hypostome or proboscis. M.- 



B. — Chelicerae or mandibles. N.- 



C. — Palpus (four-jointed). O.- 



D. — Capitulum or "false head." P.- 



E. — Porose areas (only present in Q.- 



the females of Ixodidae). R.- 



F. — Scutum or dorsal shield. S.- 



G.— Eye. T.- 



H. — Cervical groove. U.- 



I. — Festoon. V.- 



J. — Epiracle or respiratoroy W.- 



appartus. X.- 



K. — Pregenital plate. . Z.- 

 L. — Caudal process. 



-Genital orifice. 

 -Median plate. 

 -Ann.s. 



-Adanal plate. 

 -Anal plate. 

 -Genital groove. 

 -Anal groove. 

 -Adanal shield. 

 -Accessary adanal shield. 

 -Coxa (first joint of leg). 

 -Tar.sus (sixth joint of leg). 

 -Haller's sense organ. 

 -Chitinized points. 



Export of Grain, etc. 



The Chief Inspector of Grain leports that luring- May. 1920. 

 there were exported (all from Capetown) 108 bag'.s of beans and 139 

 l)ag's of maize meal, while the stocks on hand on the 31st of that 

 month were five bags lucerne seed at Capetown and 3641 bags of 

 maize meal at Dnrban. 



