Collection of the British Museum. 205 



almost exactly like c7ia?2/hea, of which I have examined the 

 type, a female from Celebes. C. clialybea has the ocelli large 

 and fulvous (as also have G. apicah's, ^ , and C. terminaUs)^ 

 but in vagans they are black and more or less aborted, espe- 

 cially the lateral ones. C. chalyhea has two widely separated 

 dentiform processes on labrum just below clypeal margin, but 

 these are absent from C. vagans^ C. apicalis, ^ , and C. termi- 

 nalis. C. chalyhea has the face considerably broader below, 

 and the abdomen less decidedly purple than in C. vagans, 

 but these differences are probably sexual. 



Hah. Philippine Is., two examples. 



Ashmead, in his recent list of Philippine Hymenoptera, 

 does not cite any species of Ctenoplecira. The genus has 

 hitherto been known from Burmah, Malacca, Celebes, and 

 Natal. In C. apicalis, $ , the apex of the abdomen is pro- 

 longed into long processes laterally, but in C. vagans the 

 processes are quite short, and the apical projection is more 

 pointed. 



G. terminalis, Sm., from Natal, is remarkable for the 

 brilliant blue of its abdomen. 



Macrotera secunda, sp. u. 



? . — Length about 9 ram. 



Differs from 3J. hicolor thus : — Abdomen piceous, broad 

 hind margins of the segments and most of fifth segment dark 

 rufous ; fimbria dull white ; marginal cell shorter and broader; 

 mesothorax shining, with well-separated or scattered punc- 

 tures of various sizes; clypeus shining, smooth in middle, at 

 sides with some rather large punctures (in hicolor it has 

 large well-separated punctures all over) ; supraclypeal area 

 also shining. Long tongue and hairs on tibia? (long and 

 curved) as in hicolor. Scutellum with a median shining 

 impunctate space ; metathorax coarsely rugose at extreme 

 base only; ventral surface of abdomen ferruginous clouded 

 with fuscous, hind margin of first segment shallowly 

 emarginate. 



llah. Mexico. 



Chalicodoma comhusta (Smith). 



Port Natal. 



In the interleaved copy of the Cat. Hym. B. Mus. in the 

 Museum the late Mr. F. Smith has written this note: — " Me- 

 gachile coslocera is the male of M. comhusta : the nest has 

 been received from Heer Guienzius ; it resembles that of 

 Chalicodoma muraria ; to the latter genus M. coelocera must 



