406 Messrs. T. U. A. Cockerell and W. Porter on Bees. 



Indian and Chinese hieroglyphica (with Morawltzii and 

 Jiavipes), the second of the Indian viridissima, and the third 

 of the ordinary dark green or blue species of Europe and 

 North America. 



C. hieroglyphica may be taken as the type of a new sub- 

 genus, Ceratinidia. Our specimen is from the Khasia Hills, 

 India, sent by Mr. Sladen. The second submarginal cell is 

 less narrowed above than in typical Ceratina {cucurhitina) ; 

 and the first recurrent nervure, instead of joining the second 

 submarginal cell at its extreme apex, joins it at about the end 

 of its second third. 



C. viridissima has the fourth joint of the maxillary palpus 

 unusually short ; the venation resembles that of Ceratinidia. 

 It is possible that this insect will fall into Pithitis, Klug, 

 which was based on the Javan C. smaragdula, Fabr., a species 

 we do not possess. 



The remaining species form a fairly compact group, not 

 well separable into subgenera. For tiiis group no subgeneric 

 name has been proposed, unless it may be possible to apply 

 Zaodontomerus^ Ashm., founded on tejonensis. This can be 

 done, if it can be shown that the specimens examined by 

 Ashmead (whether true tejonensis or not) had in reality 

 6-jointed maxillary palpi. 



The maxillary palpi in this group afford fairly good 

 specific characters, thus : — 



C. cyanea has joint 3 only about half as long as 2 (2 about 

 150, 3 about 70 /i) ; 4 and 5 are equal, both short. 



C. tejonensis (Illinois) has joint 4 only about half as long 

 as 6 ; 3 nearly as long as 2, but hardly as long as 6. 



G. nanula has joint 3 much shorter than 2. 



DiADASIELLA, Ashm., 1899, = Anthophorula, Ckll., 1897. 



We have before us a c? type of D Coquilletti, Ashm., 

 kindly sent by Mr. Ashmead. The clypeus is yellow, but 

 the venation is that of Exomnlopsis, the second submarginal 

 cell presenting no tangible difference. The maxillary palpi 

 are slender and 6-jointed, joint 4 longest, 1 and 5 shortest 

 and about equal. The mandibles are yellow without and the 

 flagellum is orange beneath, but the oblique truncation of the 

 last joint is black. The specimen is from San Diego Co., 

 California. 



This insect is manifestly congeneric with Exomalopsis 

 {Atithophorula) cojnjmctulus, Ckll., concerning which see 

 Ann. & Mag. Nat. Hist., Dec. 1898, p. 451. Indeed the two 

 are so close together that they might be taken for the same 



