78 MONOGRAPH OF THE DORYLIDES. 
Entirely of a fulvous red colour (except the head, which is dark chesnut) and shining, being 
but slightly pubescent ; the jaws of moderate size, the clypeus entire, the ocelli very large, 
the facial carine very strong, and extending on each side of the front ocellus, forming a strong 
angle beneath it; the antenne are long and slender, the basal joint longer than in L. Klugii ; 
the thorax is not very gibbous in front, the peduncle is narrower than the thorax or abdomen, 
and of a squarer form than in any of the preceding, with the angles acute; the abdomen is 
very long and cylindric, not thickened towards the tip as in L. Klugii. The wings are broad 
and almost colourless, with thin brown veins ; the stigma large and blackish ; the marginal cell 
is slightly attenuated towards the tip ; the first and second submarginal cells are large, separated 
by a slightly curved vein; the recurrent vein is received at the middle of the second sub- 
marginal cell, beyond which the cubital vein is thickened ; the anal plate is deeply and widely 
emarginate ; the lateral processes very acute. 
+ + Peduncle as long as broad. 
Species XX.—Labidus Romandi, Shk. (Mon. Dor. p. 17). Rufo-testaceus; vertice badio, 
stigmate alarum brunneo-fusco, et pedunculo abdominis quadrato-convexo ; mandibulis 
brevibus, tenuibus ; abdominis segmentis posticis, subcompressis. Long. corp. lin. 43. 
Expans. alar. lin. 73. 
Inhabits Brazil (Mus. D. Shuckard). Also taken at Canga, in Brazil, on the 4th of November, 
1838, during the night, by W. Burchell, Esq. Mr. Burchell possesses a specimen 4 lines 
long, and with the wings expanding only 7 lines, which I refer to this species, although the 
anal plate is not exposed, and the wing-veins exhibit the following distinctions, which are, 
I apprehend, to be regarded as irregularities :—The right fore-wing has four submarginal cells, 
a small supplemental one (forming a third) being interposed between the ordinary second and 
terminal cells. This little cell is very narrow in front, but broader behind. The left fore- 
wing has also four submarginal cells, but here the small supplemental cell is interposed between 
the ordinary first and second ; it is of a triangular form, and does not extend upwards to the 
marginal cell, the second transverse-cubital vein being in fact furcate at a little distance from 
the marginal cell. 
UNKNOWN SPECIES. 
Species XXI.—Labidus Pertii, Shk. (Mon. Dor. p. 18). 
Syn.—Lab. Latreillii, Perty, Del. An. Art. Br. p. 138, t. 27, f. 11. 
Obs.—Dorylus mediatus, Fabr. Syst. Prez., p. 428. (Labidus? mediatus, Shk. Mon. 
Dor. p. 18.) preserved in the Royal Museum of Copenhagen, has been examined by 
Dr. Erichson, who informs me that it is a male Mutilla, having the third joint of the 
antenn (instead of the base of the second, as described by Fabricius) ferruginous. 
JEnictrus, Shk. 
This genus differs from Labidus in the venation of the wings, and 
geographical situation ; and from Dorylus in the small size of the 
body, the long curved mandibles, and the slender cylindrical thighs ; 
whilst it is at once separated from Rhogmus by possessing only 
one recurrent vein. 
Mr. Shuckard founded the genus in his Monograph on the 
Dorylidze upon two specimens of a single species brought from 
Poonah, in Bombay, by Col. Sykes. I have, however, long had a 
note of a second species in the Cabinet of the Linnzean Society, and 
now possess, by the kindness of W. W. Saunders, Esq., President 
of the Entomological Society, F.L.S., &c., a specimen of the species 
described by Mr. Shuckard, taken in Northern India, by Lieut. 
Campbell. 
