bel 7.) Dr. B. P. Uvarov’s Notes on the 
in dimensions between Walker’s and Carl’s specimens is of 
no systematic importance. 
British Museum specimens: South Africa, 1 9 (Walker's 
type); Pretoria (W. L. Distant), 2 33; Johannesburg 
(J. P. Cregoe), 1° (the three latter specimens bear Kirby’s 
determination as Huprepocnenus pictipes Walk.); Johan- 
nesburg (A. ftoss), 1 3. 
Genus THisoicetrus Br. Watt. 
I am in complete agreement with Dr. Bolivar in delimi- 
tating this genus, which is quite a natural one. In fact, 
it has nothing to.do with Huprepocnemis, though, on the 
other hand, it is very closely related to Heteracris in Bolivar’s 
restricted sense. 
The number of species of Thisoicetrus described by 
different authors is rather large, and I am compelled to 
describe several more new ones, mostly African, though I 
leave without description yet more apparently new forms 
which are represented by badly preserved specimens or by 
females only. 
1. Thisoicetrus littoralis (Ramb.). 
Bolivar considers that 7’. littoralis Ramb., and 7. char- 
pentiert Stil, are two different species, the only distinction 
being in the number of spines on the hind tibiae. A study 
of every species of Thisoicetrus shows most clearly that 
this character is rather inconstant, and it is quite easy to 
find specimens with a different number of spines on the 
right and left tibiae. I am convinced, therefore, that 
T. charpentiert is a mere synonym of 7. littoralis. Kirby 
in his Catalogue (ii, p. 558, no. 6) has given the full 
synonymy of this species, and I consider it superfiuous to 
repeat it here; I should like to add, however, the following 
new synonyms :— 
1861. Caloptenus similis Brunner v. Wattenwyll, Verh. Zool. 
Bot. Ges. Wien, xi, p. 224. 
1870. Heteracris annulosa Walker, Cat. Derm. Salt, B.M., 
iv. pp. 673, 674, no. 41. 
1871. Acridium continuum Walker, Le., v, Suppl., p. 61. 
1905. Caloptenus similis Jacobson and Bianchi, Priamokr. 
i Lozhnoset. Ross. Imp., p. 319. 
1907. [Acridium] continuum Finot, Ann. Soe. Ent. Fr., 
Ixxvi, p. 342. 
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