1901.] HYMEXOPTERA OF TTIE " SKEAT EXPEDITION." 19 



thorax; black, stout; the scape strongly punctured, sparsely 

 haired ; the flagellum opaque. The lower part of the front 

 broadly depressed ; the basal part clearly separated, broadly 

 rounded above ; the apex transverse, with the sides broadly 

 rounded: the upper third is smooth, impunctate ; the lower strongly 

 punctured, except in the middle and at the apex. The front is 

 distinctly keeled ; the sides of the keel oblique and punctured ; 

 the top smooth. The upper half of the clypeus is deeply punc- 

 tured ; the lower smooth, opaque, except at the apex, which is 

 depressed and shining. Except very slightly on the vertex, the 

 head wants the violaceous tint. Thorax very shining ; it has all 

 over very brilliant violaceous and blue shining reflections, and is 

 covered with black pubescence ; the upper part is closely and uni- 

 formly punctured all over, as is also the upper part of the propleurae 

 and the greater part of the mesopleura? ; the metapleurae punctured 

 on the upper edges. The apex of the median segment is transverse 

 in the middle ; the sides are oblique. The legs have the violaceous 

 tints of the body ; they are thickly covered with black hair ; the 

 front tibia? and the tarsi bear dark fuscous pubescence behind ; 

 the calcaria black, except the anterior, which are dark piceous 

 and curved. "Wings dark fuscous, with a slight violaceous tint, 

 rather dull, without brilliant reflections. Abdomen black, with 

 brilliant violet and blue micaceous reflections and thickly covered 

 with black hair, which is longer and denser on the apex and ventral 

 surface ; the basal segment has a distinct neck at the base ; the last 

 dorsal segment is smooth and bare on the apex. 



Comes near to S. opalina Smith, from Borneo. No mention is 

 made of the form of the head in Smith's description, and presumably 

 the front is not depressed : it is said to have only a few scattered 

 punctures, not strongly punctured as in the present species ; the 

 disc of the mesothorax has a smooth space, which is not the case 

 here. 



ELIS (DlELIS) THORACtCA Klllg. 



This species is in the collection from Singora and from Kota 

 Bharu in Baman (District of Patani). All belong to the form with 

 the pubescence on the collar and mesonotum red, this being also the 

 case with all the specimens I have seen from Singapore and Java. 

 In India the red-haired form is very rare compared with the white. 



Elis (Dielis) aglaea, sp. n. 



Nigra, flavo-maculata ; femoribus tibiisque anterioribus femori- 

 l,n.s'/"i' /ms/iris gubtu8 flavie ; alis fusco-violaceis. $ . 



Long. 20 mm. 



J f/ii>. Biserat in Jalor, .Malay Peninsula. 



Head covered with pale hair; black, the clypeus yellow, except the 

 middle at the apex, where il is black; the lower part of the fronl is 

 strongly and closelj pund ored ; the vertex below and on either aide 

 of the ocelli sparsely punctured; the eye-incisions are more closely 

 bul doI so strong!} punctured; tbe pari above the antenna has 



