Mr. W. F. Kirby on the Family Hetrodida?. 143 



on each side. On the median line is a short sharp spine 

 pointing backwards at the extremity of each of the first five 

 segments; on the sixth this is replaced by a carina. Front 

 coxae strongly spined ; all the femora unarmed ; all the tibia? 

 sulcated on the sides and (except the front tibise) more 

 strongly above ; front tibise unarmed above, but with 6 or 8 

 spines on each side below, the base being unarmed ; middle 

 tibiae with 1 spine on the outer and 3 on the inner carina 

 above, and with 6 on each side below ; base unarmed ; hind 

 tibiae with 6 to 10 spines on each side above, those in the 

 outer row ceasing before the tip, and with from 6 to 8 on 

 each side below. 



Hah. Kalahari Desert (Cunningham). 



Allied to A. discoidalis, Walk. ; but in discoidalis the 

 middle tibial are armed above with only one or two spines on 

 the outer edge. A. Speiseri, Brancs., has two spines on the 

 middle tibiae above, but differs from both A. discoidalis and 

 A. desertorum in having no more than three in the outer row 

 in the hind tibia?. 



Acanthoplus serratus, sp. n. 



Long. corp. (cum app.) 31 millim. ; pron. 10; fem. 

 post. 17 ; tib. post. 22. 



Female. — Dark brown above, inclining to reddish on the 

 pronotum, especially behind; vertex and pronotum rugose- 

 punctate, most strongly on the front of the pronotum ; inter- 

 antennal tubercle very short, antennas reddish beneath ; face 

 yellowish, reddish above ; spines of pronotum nearly as in 

 the last species ; abdomen with the first five segments spined 

 in the middle ; under surface smooth, yellowish ; anal ap- 

 pendages reddish ; valves of the ovipositor strongly serrated 

 above ; legs varied with testaceous at the joints ; front coxae 

 spined ; femora unarmed ; front tibise unarmed above and 

 with two rows of about seven spines beneath, not extending 

 to the base j middle tibiae with 3 to 4 small spines above on 

 the outer carina only, and with 6 on each side below, the basal 

 third unarmed ; hind tibiae with two rows of 5 to 8 spines 

 above and of 6 to 9 below. 



Hob. King William's Town (Spencer). 



A longer and narrower species than the last. 



Acanthoplus germanus, sp. n. 



Female. — Very similar to the last species in size and 

 general appearance. The pronotum is brown, coarsely 

 rugose- punctate in front, and more finely behind. The 



