igii.] G. RiCARDO : The Oriental Tabanidac. 355 



have tolerably large facets above, below very small ones, the small 

 triangular forehead is almost wholh' occupied by the shining black 

 frontal callus. 



The legs are very dark brown, the fore legs black, except the 

 basal third of the tibiae which is white ; on the middle tibiae the 

 white colour extends further, almost three- fourths of the length ; 

 the hind tibiae are distinctly incrassate, more red- yellow and 

 only white at the base, on both sides with thick black-brown 

 fringes of hairs. 



The female is somewhat larger and has more wholly black 

 antennae contrary to Macquart's account, who described the 

 female only and called the first antennal joint red-yellow. The 

 legs are alfeo distinctly darker than Macquart's description would 

 lead one to believe. The facets of the eyes are wholly very small. 

 The ground colour of the wings is darker than that of the two 

 preceding species, especially on the anterior part ; the pale colour- 

 ing consists of a large quantity of spots which are spread over 

 almost the whole wing, but are absent at the apex, being there 

 replaced b}' a very broad transverse band which is convex on its 

 discal border, commencing at the apex of the second vein 

 (radial veni), crossing the upper branch of the third vein and 

 across the apex of wing, ending in the posterior border of wing 

 (this is probably the moon-shaped form which was the cause 

 of the specific name) ; the pale band intersecting the second 

 basal cell ends in the posterior angle of wing, curving like a hook 

 and forming with a pale spot situated on the anal vein a more or 

 less eye-like form. V. d. Wulp, Sumatra Exped. Diptera, p. 20, 

 pi. i, fig. 14. 



Osten Sacken places the following remarks under the heading 

 of H. limulata, Macq. : — 



H. sp. ? 



All the specimens before me have the design on the wings like 

 the above- quoted figure of v. d. Wulp, but some of them have the 

 antennae reddish, except the latter part of the third joint which is 

 black ; and at the same time two whitish rings on the hind tibiae ; 

 the other group of specimens has altogether black antennae and 

 only one white ring near base of hind tibiae. Neither of them 

 agrees entirely with Macquart's description. Osten Sacken, Berlin. 

 Ent. Zeit., xx\d, p. 97. 



Type in the Paris Museum seen by me in 1906. A small species. 

 Frontal callus black, convex, reaching eyes, and the two usual 

 black spots on forehead present. Legs yellowish with brown rings. 

 Macquart's figure shows the apical band (his '' lunule blanche") 

 single, crescent-shaped, the same width throughout : v. d. Wulp 

 figures it as broader and more irregular ; in the apices of cells on 

 posterior border he shows small ])ale markings, the third posterior 

 cell appears paler with nian}^ white spots, the fourth and fifth and 

 axillary angle of wing largely paler, only the first rosette at all 

 distinct. Macquart's figure is useless except as regards the 



