Indo- Chinese Hymenoptera. oF 
2. Cryptochilus falsus, sp. n, 
Described above. Tarsal ungues unidentate in the female, 
bifid in the male. 
3. Cyphononyx peregrinus, Sm, ab. disjunctus, n. 
? g. Differs from the typical peregrinus in the colour of 
the wings, which are yellow, with a narrow apical fuscous 
margin, not fusco-violaceous entirely as in the typical form. 
The tarsal ungues are bifid in both sexes. This is the preva- 
lent form in Western India, but occurs with the typical form 
in Sikkim. I have taken it in Ceylon, and its range also 
extends to China and Pegu, though in Further India and the 
Indo-Malayan region the dark-winged form is dominant. 
The genitalia of a Western yellow-winged male differ slightly 
from those of a Burmese dark-winged male, but the difference 
is so slight that I do not think it would be justifiable to treat 
it as a separate species. ‘This is the Sphew flava of the 
Banksian Collection. 
Cryptosalius tonkinensis, sp. n. 
@. Nigra; femoribus posticis ferrugineis, apice nigris; tergitis 4 
basalibus fasciis utrinque apicalibus argenteo-sericeis ; alis fusco- 
hyalinis, venis fuscis. 
Long. 15 mm. 
?. Clypeus short and broad, truncate at the apex; labrum 
exposed, broadly truncate at the apex. Antenne stout, 
about as long as the head, thorax, and median segment com- 
bined, not tapering much to the apex, the second and third 
joints of the flagellum subequal. Front feebly convex, with 
a short impressed longitudinal line, which does not reach 
halfway to the anterior ocellus ; the frontal prominence above 
the antennz rather narrowly rounded at the apex. Myes 
reaching to the base of the mandibles, temples obsolete. 
Head and thorax opaque, rather sparsely punctured, with 
very minute close punctures between the larger punctures, 
Pronotum short, no longer than the scutellum, rounded at the 
anterior angles, the posterior margin very broadly and feebly 
arched. Median segment broader than long, obliquely sloped 
posteriorly, the apical half of the dorsal surface strongly 
transversely striate, a deep sulcus from base to apex, the 
basal half delicately transversely rugulose. ‘Tarsal ungues 
bifid; hind tibize almost smooth, with a few minute spines, 
Second and third abscisse of the radius subequal in one 
specimen, in another the third distinctly the longer ; second 
Ann, & Mag. N. Hist. Ser, 9. Vol. v. 7 
