330 Mr. G. C. Champion on the 
coloured like the Chinese J. hiigeli, Redt., represented by a 
single damaged example, which must be left unnamed for 
the present, no locality-label being attached to it. 
African Species. 
Prothorax (except in I. dimidiata, var. tripartita, Pic) and 
elytra testaceous, the apical portion of the latter to a 
greater or less extent black. ¢ 
Wibialispurs Lone. Means cee nul lee oe rien aie RCE ee No. 1. 
Pibialispursskory 2 MATE RO RUC Ss «dels albert Nos. 2-6. 
Prothorax and elytra nigro-cyaneous ....... 045000 nee No, 7. 
Prothorax fulvous, the elytra black or nigro-cyaneous.... No.8. 
1. Ldgia plectrophora, sp. un. 
Extremely like J. (Prionocerus) dimidiata, Gerst., and 
similarly coloured, and only separable therefrom by its 
structural characters: tibial spurs long, including the one 
on the anterior pair, in both sexes, strongly developed in ¢; 
anterior tarsal joints 1 and 2 elongated, 1 slightly curved, 
smooth and almost glabrous at the base, and produced into 
a dentiform lobe at the inner apical angle, 4 small, narrow, 
the comb on 1-8 extending along the greater part of their 
length; joint 1 of intermediate and posterior tarsi com- 
pressed, slightly curved, and smoother at the base. 
Genital armature (PI. XI. fig. 3): lateral lobes long, broad, 
rounded at tip; median lobe narrow, drawn out into a 
long, slender, downwardly-curved point. 
Length (excl. head) 9-13, breadth 31-45 mm. (¢ ?.) 
Hab. E. Arnica, Tabora (ex coll. Fry: type, ¢ ), Salt Lake 
—Wawamba (Scott Eliot), East shore of Victoria Nyanza 
near Karungu, Lusinga Isl., Kisumu (Port Florence), Upper 
Kuja valley, 8. Kavirondo (S. 4. Neave), S. Masai Reserve 
(T. J. Anderson), Mogorr River (A. O. Luckman) ; Ucanpa, 
W. and S8.E. Ankole (4400-5000 ft.), and S. of Lake George 
(S. A. Neave), Maramu and Kamwezi (C. H. Marshall). 
The series examined includes upwards of 250 examples, 
showing but little variation, the black apical patch rarely 
reaching forward to the middle of the elytra, the prothorax 
constantly fulvous, the armature of the tibiz and tarsi 
perfectly constant, the females separable from the same sex 
of J. dimidiata by the longer tibial spurs. ‘The genital 
armature of several males has been examined. 
