Malacoderm Genera Prionocerus and Idgia. 347 
portions of the femora excepted) infuscate or black, the 
elytra less metallic. 
Length (excl. head) 104-12, breadth 3-4 mm. (¢ 92.) 
Hab. Invia (Walter Elliot, in Mus. Brit.: type, 3), Bel- 
gaum (H. H. Andrewes: type ? ), Mysore (Mus. Oxon.: var., 
6 ), Poona (coll. Andrewes: var., 2 ) 
Described from a similarly coloured pair, the ¢ without 
definite locality. The examples with partly infuscate legs 
and antenne, the ¢ with thickened posterior femora, seem to 
belong to the same species, the genital armature being similar 
in the two forms. J. femorata is closely related to I. gorhami, 
Pic, as here restricted, differing from it in the strongly 
incrassate posterior femora in @, the simple terminal dorsal 
segment in both sexes, and the slightly dilated antenne. 
The median and lateral lobes are much shorter than in 
the two males of I. gorhami dissected. The type, 3, of the 
present species was presented to the British Museum many 
years ago. 
25. Idgia gorhami. 
Idgia gorhami and var. diversipennis, Pic, Bull. Soc. Ent. Fr. 1911, 
p. 241 (exclud. var. with bimaculate prothorax) '. 
6. Anterior tarsi, terminal dorsal segment, and genital 
armature (Pl. XI. fig. 22) as in I. dimelena, Walk. (=cardoni, 
Bourg.), No. 44, infra. 
Hab. Ino1a (Mus. Brit.), Nilgiri Hills! (Sir G. F. Hampson, - 
HL. Andrewes, A. Kk. Weld Downing), Coonor (W. Davison), 
Belgaum* (H. H. Andrewes), Kanara (T. R. Bell) ; Burma, 
Paungde (Mus. Brit.). 
The dissection of two males from the Nilgiri Hills shows 
that Z. gorhami is a form of J, dimelena, Walk., with infus- 
cate, submetallic elytra, the variety diversipennis being 
intermediate. The two insects are common in the Nilgiri 
Hills, but as J. gorhami does not appear to extend to Ceylon 
it is here given specific rank. The anterior portion of the 
head, the antennz, scutellum, legs, and under surface are 
testaceous, as in J. dimelwena, and the terminal dorsal abdo- 
minal segment is similarly cleft at the tip in the two sexes, 
the apex appearing bilobed. 
26. Idgia nilgirica, sp. n. 
Idgia oculata, Gorh. Ann. Soc. Ent. Belg. xxxix. p. 319 (1895) (nec 
Redt.). 
Idgia gorhami, Pic, Bull. Soc. Ent. Fr. 1911, p. 241 (var. with bima- 
culate prothorax). 
