Indo-Chinese Ilymenoptera, 97 



2. Cnjptocliilus falsus, sp. n. 



Described above. Tarsal ungues unidentate in the female, 

 bifid in the male. 



3. Cyphononyx peregrinus, Sm, ab. disjunctus, u. 



? (^ . Differs from the typical peregrinns in the ci>lour of 

 the wingSj Avhicli are yellow, witli a narrow apical fuscous 

 margin, not fusco-violaceous entirely as in the typical form. 

 The tarsal ungues are bifid in both sexes. Tiiis is the preva- 

 lent form in \Vestern India, but occurs with the typical form 

 in JSiivkim. I iiave taken it in C'tylon, and its range also 

 extends to China and Pegu, though in Further India and the 

 Indo-Malayau 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 tliink it would be justifiable to treat 

 it as a separate species. This is the Sphex Jiava of the 

 Banksiau Collection. 



Cryptosalius tonkinensis^ sp. n. 



$. ^'igra ; femoribus posticis fcrrugineis, apice nigris; tergitis 4 

 basalibus fasoiis utrinque apiculibus argeuteo-sericeis ; alls fusco- 

 hyalinis, venis fuscis. 

 Long. 15 mm. 



$ . Clypeus short and broad, truncate at the apex ; labrum 

 exposed, broadly truncate at the apex. Antennre 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 imjn'essed longitudinal line, which does not reach 

 hallway to the anterior ocellus ; the fruntal prominence aljovc 

 the antenna} lather narrowly rounded at the apex. Fyes 

 reaching to the base of the mandibles, tem[>les obsolete. 

 Head and thorax opaque, rather sparsely puncturetl, with 

 very minute close j)unctureB between the larger punctures. 

 Pronotum short, no longer than the scutellum, roundeil at the 

 anterior angles, the posterior margin very bioadly ajid feebly 

 arched. ]\Iedian segment broader than long, oblujuely 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 tibiw almost smooth, with a lew minute spines. 

 Second and third abscissa; of the radius subequal in one 

 specimen, in another the third distinctly the longer ; secuutl 



Ann. ik May. N. Hist. Ser. 'J. Vol. v. 7 



