THE CANADIAN ENTOMOLOGIST. 1C5 



Cerati?ia nanula^ Ckll. — Boulder, Colo., June 27, 1905. One 9 at 

 flowers of Calochortus Gunnisoni, and one $ at flowers of Osmodium 

 (\V, P. Cockerel)), known from C. Ndoinexicana by the very small size 

 and clear wings. This and the next are new to Colorado. 



Cerafina Neomexicana, Ckll. — Common at Boulder, Colo. The 

 male, not before described, differs in the usual manner from the female ; 

 tlie branches of the clypeal T are about equally long, but the upper one 

 is much broadest ; the supraclypeal area hns a itw large punctures ; the 

 projecting point on the sixth abdominal seejment is covered with light 

 hair having a fulvous tint ; apical projection small and low ; process on 

 hind femora large, forming more than a right angle. This is, perhaps, 

 more like C. Tejonensis than any other male Ceratina, but the end of the 

 abdomen is quite different. The Boulder females include specimens with 

 the following data : June 26, at flowers of Platycodon grandijforum'xw 

 cult. (Ckll.) ; Aug. 3, in flower of Argemoiie ifiter media (Ckll.) ; June 12, 

 at flowers of Onosmodiinn (W. P. Ckll.) ; June 27, at flowers of Calochortus- 

 Gunnisoni (W. P. Ckll.) ; April (Sellars and Williams). 



Sphecodes Pecosensts, Ckll. — Boulder, Colo., 1905. (W. P. Ckll.) 

 The specimen has the mandibles only bulging within, with nothing that 

 could be called a tooth, but it is in all other respects exactly like one from 

 Cheyenne Canon, which has a well-formed tooth, as in the type. It is 

 evident that the presence or absence of a tooth on the mandibles should 

 not be held to distinguish a species of Sphecodes (at any rate, when ex- 

 hibited by a single specimen) in the absence of other characters. S. 

 Pecosensis has much superficial resemblance to a number of species, but 

 is easily known by the first two abdominal segments being sparsely 

 punctured, the punctures conspicuously of two sizes, the strongly-depressed 

 suture between these segments, and the dark hair at the apex of the 

 abdomen. 



Protej-afier /epfanthi, Ckll., was also taken by my wife at Boulder 

 (male, June 10) ; so also Sphecodes Sophice, Ckll. ( ? , June 12.) 



Prosopis Fedtschenkoi, n. n. — Prosopis frontalis (F. Morawitz, in 

 Fedtschenko, Turkestan Mellifera, II., 1876, p. 275). (Not of Fabricius, 

 1804.) 



The Fabrician insect is a Camptopoeum^ but it was described as a 



Prosopis^ and according to the rules in vogue the name may not be 

 repeated in the genus. 



. Prosopis Pereziana,' n. n. — Prosopis Morawitzi, Perez. Esp. 

 Nouvelles Melliferes, 1903, p. 68. (Not of Dalla Torre, 1896.) 



