360 Mr. G. ©. Champion on the 
Hab. Cryton, Kandy (G. E. Bryant: vi. 1908). 
Very like J. dimelena, Walk., but with the antenne and 
legs in great part, and the labrum, infuscate or black, the 
apical patch on the elytra as large as in I. melanocephala, 
the head small, the labrum short and subarcuate, the pen- 
ultimate antennal joint subserrate. J. cyanura cannot be 
satisfactorily included under J. assimilis or I. melanura, an 
as these latter are not known from Ceylon, a name is 
required for it, even in the absence of the male. J. sub- 
metallica, Pic (1911), also from Kandy, is similarly coloured 
above, but it has the under surface metallic. 
44. Idgia dimelena. 
Thaccona dimelena, Walk. Aun. & Mag. Nat. Hist. (8) iii. p. 260 
(1859) [sub Gidemeridee |*. 
Idgia cardoni, Bourg. Compt. rend. Soc. Ent. Belg. xxxv. p. exli 
(1891) (¢-2)?, and Ann. Soe. Ent. Belg. xxxvi. p. 287 (1892) °; 
Gorh. op. cit. xxxix. p. 819 (1895) 4. 
6. Anterior tarsal joints 1-3 with a black comb along 
their inner edge; terminal dorsal segment narrowly, deeply 
excised in the middle (the notch much deeper than in ¢), 
appearing bilobed at tip ; sixth ventral segment triangularly 
emarginate. Genital armature (Pl. XII. fig. 36): lateral 
lobes very long ; median lobe very elongate, almost straight 
from near the base, the apex abruptly drawn out into a long 
slender curved point. 
Hab. 8. Invia (W. Davison), Bombay, Malabar (Mus. 
Brit.), Kunbir Nowatoli*, Mandar** (sec. Bourgeois), Bel- 
gaum “, Madura (H. HE. Andrewes), Anamalai Hills (H. L. 
Andrewes), Nilgiri Hills (H. L. Andrewes, Sir G. F. Hamp- 
son); Cryton’ (Thwaites, G. Lewis), Colombo (H. P. 
Green), Madulsima (F. B. Fletcher), Hapulahani (Mus. 
Brit.), Kandy (G. E. Bryant). 
A common insect in Ceylon and Southern India, females 
greatly preponderating in the long series before me. One 
of Walker’s types from Ceylon and a Nilgiri example have 
been dissected, and these show a precisely similar genital 
armature in gf. The wholly testaceous labrum, antenne, 
and legs, the slender antennz, and the simple posterior 
femora in ¢, are its chief characters, but there are several 
very similar forms in the same regions. ‘he apical black 
patch varies in size, but it is never very small. ‘The length 
(excl. head) ranges from 9-103 mm. The eyes are large 
and subcontiguous in ¢, the head is rather small, and not 
much elongated anteriorly, and the antenne are slender. 
