230 Miss G. Ricardo on the Asilides. 
One female from Sandaran Agong, Korinchi Lake, 
Sumatra, 2450 feet, May and June (1914). 
V.d. Wulp described his species from one female caught 
in Borneo. His detailed description makes it certain that 
Walker’s species is identical. V.d. Wulp’s female measured 
30 mm., these 26-28 mm. He also recorded a female from 
Datar, Sumatra. 
A fine species with a long black ovipositor composed of 
the last three segments of abdomen, which is blackish with 
broad bright orange-haired segmentations, pubescence on the 
dark part chiefly of short yellow hairs. Moustache com- 
posed of strong yellow bristles with a few black ones among 
them. Palpi with black hairs. Antenne black, the third 
joint shorter than the first one, but with a long arista. 
Thorax blackish with yellow tomentum, a median divided 
stripe and side ones very distinct. Scutellum with a double 
row of black bristles. Legs black ; tibize reddish yellow, 
only dark at their apices. Wings yellowish, large, with a 
very small narrow dark streak in submarginal cell. 
Promachus transactus, Wk. 
Proc. Linn. Soc. London, vii. p. 207 [ Trupanea] (1864). 
Promachus tnornatus, v.d. Wulp, Tijd. v. Ent. (2) vii. (xv.) p. 2380 
(1872). 
Type (female) from Mysol, Celebes. 
The species is evidently the same as the one described by 
v.d. Wulp from Borneo and Halmaheira. He distinguishes 
it from his species Promachus albicauda (identical with 
P. calorifica, Walker), to which it is nearly allied by the 
difference in the genitalia and by the moustache being more 
largely black with a few white hairs below, the thorax has 
distinct stripes, the pubescence on thorax is longer and 
thicker, the femora are entirely black, and the tibize red- 
yellow with black apices, the hind tibie often much 
darker. 
Length 183-19 mm. 
The Walker type is in bad condition, and measures about 
TS mm. Legs as described above. Abdomen appears to 
have black spots with grey segmentations. Ovipositor long, 
composed of the last three segments of abdomen. Scutellum 
with not very stout black and yellow bristles. 
