T. D. A. COCKKRELL. 185 



ON SOME PANlTRGI9fE AND OTHER BEES. 



BY T. D. A. COOKEKELL. 



[The types of tlie new species described herein, excepting Sphecodes knetschi, are in the 

 collection of the American Entomological Society. — W. J. Fox ] 



(1.) Halictiis parvus (Cress.). 



Puniirgus (?) parvus Cr., Proc. Ent. See. Phil., iv, 175. % , 9- — Cuba. 



INIr. Fox sends me an authentic specimen, a S . It is an Halichts 

 with two suhmarginal cells, similar to H. anomalus Rob. Length 

 about 4 mm. Tongue quite slender at end ; maxillary palpi 6-jointed, 

 joints subequal, but the two last longer than those before, third joint 

 not shorter than second. Venation as in HemihalicUis, i. e., with a 

 large stigma, and third discoidal contracted above. Head and 

 thorax green ; abdomen and legs dark brown ; antennae dark brown 

 above, pale brown beneath ; face narrowed below, with appressed 

 white pubescence ; tegulse testaceous ; stigma brown ; nervures 

 piceous; front as closely punctured as is pt)ssible ; mesothorax shin- 

 ing. I do not refer this to Heinihalictus, because I am convinced 

 that it is an oflshoot from the ordinary green Halicti, and has no 

 genetic connection with the type of Hemihalictus, other than through 

 Halictus proper. 



(2.) Halictus texauus (Cr.). 



Sphecodes texana Cr., Tr. Am. Ent. Soc, iv, 249, 9 , % ■ — Tex. (not H. 

 texanus Cr.. t. c, p. 251, which is H. ligatus var.). 



In the Mesilla Valley, New Mexico, this species is not very rare- 

 Miss J. E. Casad took it at Mesilla on April 13th, at flowers of pear. 

 Prof. E. O. Wooton took both sexes at Las Cruces on October 17th, 

 at flowers of the Senecio, which passes for S. dotiglasii in the books, 

 but which, according to Prof. Wooton, is really distinct. 



The first recurrent liervure does not unite vvith the second trans- 

 verso cubital, though it comes very near it. Our insect is simply an 

 Halictus with a red abdomen, and should be separated from Para- 

 aphecodes on the same grounds that H. parvus is excluded from 

 He)nih((lictiis, namely, the absence of blood- relationship except 

 through typical Halidas. 



Paraspheeodes califomica Prov., must be called Halictus cali- 

 fornicns (Prov.). 



TRANS. AM. KNT. SOC. XXV. (24) DECEMBKR, 1898. 



