116 THE ENTOMOLOGIST, 



Coelioxys sanguinosiis, Cockerell. 

 Guacimo, Costa Kica, June 21st, 1903, one female (J. C. 

 Crawford). U.S. National Museum. The last ventral segment 

 has a well-defined tooth-like apex, whereas the type has only a 

 nodule, but the specimens are evidently conspecific. 



Coelioxys azteca, Cresson. 

 San Jose, Costa Eica, May 31st, 1903, " on orquetilla," one 

 female (J. C. Crawford). U.S. National Museum. 



Coelioxys texana sonorensis, subsp. nov. 



(? . Length about 8J mm. ; face densely covered with white 

 hair ; first two joints of antennae dark red, the others black ; hair on 

 eyes shorter than in male texana from Wisconsin ; region surround- 

 ing middle ocellus strongly elevated ; mandibles with a red subapical 

 spot ; cheeks thinly covered with white hair, more densely below 

 {texana from Wisconsin has a large bare space, wholly wanting in 

 sonorensis) ; mesothorax closely and very coarsely punctured ; two 

 conspicuous spots of creamy hair on anterior margin, and a thinly 

 hairy triangle between; scutellum densely punctured, the hind 

 margin with pale hair, and not tuberculate or angular ; tegulse clear 

 bright ferruginous ; first r. n. joining second s. m. at extreme base ; 

 legs bright clear ferruginous, the tarsi strongly dusky ; spurs clear 

 red ; abdomen clouded with red at sides and beneath ; apical segment 

 deeply excavated, with three teeth on each side, but one of them 

 more or less bifid, no median tooth; fourth ventral segment with two 

 red teeth on apical margin, not extending beyond the fringe of white hair. 



Hah. San Jose de Guaymas, Mexico, April 10th (L. 0. 

 Howard). This insect has caused me some perplexity, because, 

 except for the smaller size, it agrees fairly well with Cresson's 

 brief account of male texana. It is certainly quite distinct from 

 the Wisconsin insect which Dr. Graenicher has sent me as 

 texana ; but Dr. Graenicher's female, which certainly seems to 

 belong with the male, appears to be veritable texana as described 

 by Cresson. Dr. Howard's bee has the appearance of a desert 

 insect, and should be distinct from the Texan species, which 

 may well range into Wisconsin. Very possibly the new form 

 represents a distinct species, C. sonorensis, but until it is com- 

 pared with the type of texana it may be given only subspecific rank. 



In my table of male Coelioxys in Canadian * Entomologist,' 

 C. sonorensis runs to C. quercina, Ckll., differing by the absence 

 of a median process at end of abdomen, the rounded (instead of 

 squarely truncate) hind margin of scutellum, the red colour at 

 sides of abdomen beneath, and the smaller size. It is allied, 

 however. 



Coelioxys otom'ita hicarinata, subsp. nov. 



? . Exactly like C. otomita, Cresson, except that the clypeus has 

 on its lower two-fifths a pair of parallel longitudinal ridges, with a 

 depression between. 



