NO. 1487. NORTH AMERICAN DIGGER WASPS— FERNALD. 325 



species from rufiventrls^ and it is not improbable that a larger series 

 will show that the two are merely color varieties. 



Lengtli. — Females, 18-20 ram.; males, 14-17 mm. 



This interesting species appears to be widely distributed but far 

 from common. I have seen specimens from Texas, Florida, New 

 Mexico, California, Georgia, Virginia, and New Jersey, from Ludlow- 

 ville, New York; Michigan, Wisconsin, and Minnesota, and it is 

 recorded from northwestern Illinois as well. 



On so man}^ of the specimens only the State is given that I hnd it 

 impossible to make out any relation to the life zones for the distribution 

 of the species. 



CHLORION (PALMODES) RUFIVENTRIS (Cresson). 



Sphex rujivenlris Creshox, Trans. Am. Eiit. Soc, IV, 1872, p. 211. 



IlarpadopHS rujiventris Patton, female, Bull. U. S. Geol. and Geogr. Surv., V, 



1880, p. 354. 

 Haiyactojiiis rufiventris Tattoo, Proc. Bos. Soc. Nat. Hist., XX, 1880, p. 383. 

 SpJic.r rufivenlriif CoQViLLETT, Kept. U. S. Dept. Agr., 1885, 1886, j). 299. 



Types. — Two females, now in the collection of the National Museum 

 at Washington. Cat. No. 1690, U.S.N. M. 



Male tj'pe: One specimen from Texas, in the collection of the 

 National Museum; now hrst described. 



The following description, prepared from the tjq^es, is followed by 

 comments obtained from the study of other specimens: 



Bod\^ to and including the petiole, black; abdomen ferruginous; legs 

 black; wings fuliginous. 



Female. — Head rather large, quadrangular, hollowed in front 

 between the e^'es when viewed from above; clypeus short, broad, 

 extending below the eye nearly half the width of the eye; its surface 

 almost flat, the anterior margin very slightly retlexed, smooth; the 

 remainder very closely, minutely punctured and with numerous coarser 

 punctures and moderately long, black hairs; frons similarly marked, 

 the coarser punctures not as coarse and nearer each other than on the 

 clypeus; its surface almost without hairs (worn off?); frontal suture 

 distinct; a short distance obliquely backward from each lateral ocellus 

 there is often a puncture larger than its neighbors, showing best in 

 worn specimens; surface of vertex marked like the frons, its highest 

 point about opposite the hinder edge of the eyes; cheeks broad, nearly 

 the width of the eye, broadest in the middle, minutely, closely punc- 

 tured and also with coarser punctures, particularly below; with numer- 

 ous long, black hairs, longest below; inner margins of eyes parallel; 

 antenntT?; scape black with a ferruginous tinge, somewhat glistening, 

 with a few short, black hairs and two or three stout ones on the inner 

 side at the tip; very minutely punctured; pedicel short, black; fila- 

 ment black, particularly toward the base, grayish sericeous in some 



