no. 1837. NEW SPECIES OF WASPS— BOHWER. 581 



Genus TACHYTES Panzer. 



TACHYTES CHRYSOCERCUS, new species. 



Distinct in the large size, yellowish and dusky wings, red legs, 

 golden pubescence of the pygidium and subequal first and second 

 flagellar joints. 



Female. — Length 16 mm. Anterior margin of the clypeus rounded, 

 somewhat crenulate laterally ; head and thorax dull, finely closely 

 punctured; ocellar area parted by a furrow, area .behind the ocelli 

 slightly depressed; third antennal joint slightly longer than the 

 fourth; scutellum not impressed; propodeum finely granular, furrow 

 on the posterior face distinct, a triangular-shaped fovea on apex of 

 dorsal aspect; legs strongly spined; second cubital cell about twice as 

 long on the radius as the third; abdomen hardly as long as the head 

 and thorax; pygidium sharply defined, the apex rounded. Black; 

 mandibles, legs below bases of femora and abdomen (the abdomen 

 is darker) ferruginous; tegulse paler than the femora; densely clothed 

 with golden pile, scape, head, and metathorax with long fuscous hair; 

 pubescence of abdomen and pygidium especially bright and dense. 

 Wings yellowish, apices dusky; venation reddish yellow. Pulvilli 

 black. 



Meadow Valley, Mexico. One female collected by Mr. C. H. T. 

 Townsend. 



Type.— Cat. No. 13762, U. S. N. M. 



TACHYTES XENOFERUS, new species. 



From the descriptions evidently belongs near vicinus, but is dis- 

 tinguished by the space between the eyes at vertex being greater than 

 the length of the second and third antennal joints not "nearly the 

 length of;" the ventral segments do not bear "a dense tuft of longish 

 brownish hair;" the wings can hardly be said to be "flavo-hyalinis," 

 although they are slightly yellowish. 



Female. — Length 10 mm. Anterior margin of the clypeus rounded, 

 armed laterally with six small teeth, the two inner ones larger, sur- 

 face with distinct separate punctures; front finely granular, impressed 

 line wanting ; ocellar and surrounding area gently raised ; vertex finely 

 punctured, the depression shallow; space between the eyes at vertex 

 greater than the length of the second and third antennal joints, but 

 much less than the length of the third and fourth joints; scape pilose 

 hairy beneath, flagellum pilose, the third and fourth joints equal; 

 thorax with close, fine punctures; propodeum rounded posteriorly, 

 distinctly shorter than the mesonotum, no well-defined channel on 

 the transversely striato-punctate posterior face; third cubital cell 

 slightly longer on the radius than the third ; legs rather robust, feebly 

 spined; ventral segments almost without hair; pygidium broad, well 



