NO. 2173. A REVISION OF THE BEMBWTNE WASPS— PARKER. 69 



below, broad anterior orbits shortened and narrowed above, narrow 

 posterior orbits, posterior border of pronotimi including tubercles, 

 pair of short narrow discal lines on scutum, short lateral lines on 

 same above base of anterior wing, spot on base of anterior wings, 

 tegulae, pair of rounded lateral spots on scutellum, narrow transverse 

 curved fascia on metanotum, lateral angles of median segment, 

 fasciae on tergites 1-6 rather widely interrupted medially, triangular 

 lateral spots on sternites 2-5, distal extermity and short longitudinal 

 stripe on anterior and posterior edge of anterior femora, anterior 

 tibiae except stripe on posterior surface and below, anterior tarsus 

 above, extreme distal ends of middle and posterior femora, greater 

 part of intermediate tibiae below, and part of the posterior tibia 

 below, yellow or slightly greenish yellow. Anterior wings with a 

 heavily infumated spot in region of first cubital cell. 



The black color of the body is intense, shining and shows a 

 beautiful bluish-violet iridescence. The punctures of the thorax are 

 fine, close, and evenly distributed; those of the apical tergite some- 

 what larger, closely placed basally but more widely separated on 

 the apex especially on the middle area. Antennae and legs show no 

 pecuhar modifications. The fascia on the fu'st tergite is slightly 

 shortened laterally, much attenuated medially, and more widely 

 inten-upted than the othere; second slightly attenuated medially; 

 third and fourth narrowed, and fifth and sixth interrupted laterally. 

 The middle and posterior tarsi are almost black, the distal ends of 

 the segments showing traces of ferruginous. The face when viewed 

 at the proper angle shows a silvery reflection. 



This species resembles quite closely the male of viduata, but it is 

 smaller and more slender than that species, the markings are less well 

 developed and the genital stipes are quite different. 



Habitat. — Santa Rita Mountams, Arizona (coil. F. H. Snow.) 



Number of specimens examined: Males, 1. 



Type. — The collection of the University of Kansas. 



BICYRTES VIDUATA Handlirsch. 



Figs. 124, 125. 



Benibidula viduaia Handlirsoe, Sitz. Akad. Wissensch. Wien, Math. -Nat. CI., 

 vol. 98, 1889, p. 491, female. 



Male. — Black: Clypeus, base of madibles, frons below insertion of 

 antennae, scape below, anterior orbits not reaching to vertex, narrow 

 posterior orbits, posterior margin of pronotum including the tuber- 

 cles, spot on tegula, narrow lateral Une on either side the scutum 

 above base of anterior wing, pair of discal spots on scutum near 

 anterior margin variable in size, one or two spots on mesopleura, 

 pair of rounded lateral spots on scutellum, transverse fascia on 

 metanotum, more or less complete curved fascia on dorsal surface 



