252 ENTOMOLOGICAL NEWS. [July, '18 



A Remarkable New Bee of the Genus Oxaea (Hym.). 



Bv T. D. A. CocKERELL, Bouldcr, Colorado. 

 I have just received a bee. collected by Dr. Eugenio Gio- 

 comelli, at La Rioja, Argentina, which looks like a Ccntris, 

 but actually belongs to the rare genus Oxaea. The superficial 

 resemblance to Ccntris is such that I began running it through 

 the tables for that genus, until I noticed the entirely different 

 venation. We appear to have an excellent case of ^Miillerian 

 mimicrA'. 



Oxaea haematura n. sp. 



9 . Length, 19 mm. ; head black, with white hair, short fuscous hair 

 on occiput ; facial quadrangle about as broad as long ; eyes green ; 

 labrum with a strong median ridge, the upper part of which is 

 grooved ; clypeus closely punctured but shining ; antennae black ; 

 thorax black, very densely covered with hair as in the similar species 

 of Ccntris, this hair dorsally bright fulvous, ventrally creamy-white; 

 tegulae clear fulvous ; wings strongly dusky, nervures piceous ; legs 

 black; hind tibiae and tarsi with stiff black hair, but the tibiae with 

 a large loose white scopa beneath ; abdomen with the first four seg- 

 ments brilliant blood-red. dull, hairless, almost impunctate, but the 

 second segment shows fine punctures ; fifth segment black, glistening. 

 well punctured, posteriorly with a thick black fringe, and on each 

 side with a tuft of creamy-white hair; apex with black hair; apical 

 plate very broad, the middle portion elevated ; venter dark, the first 

 three segments with bright ferruginous hind margins. 



Quite unlike any other Oxaea; nearest to the Brazilian O. 

 riifa Friese, which has dark-brown hair, and is considerably 

 larger. 



Type in the writer's collection. 



Hsmileuca burnst, its specific validity and habitat 

 (Saturnidae, Lepid.). 



By J. Hexry Watson, \\'ithington. Manchester, England. 



Sir George Hampson has lately called my attention to a 



note by Dr. Dyar in Insec. Insc. Mens, of December. 1916. 



on the locality of H. bitrnsi, which I described in Trans. 



Manch. Ent. Soc. 1910, as from the Truckee Pass, California, 



