AKT. 17 WASPS OF THE GENUS TIPHIA ALLEN AND JAYNES 91 



denser on lower half, where they are evenly distributed and of first- 

 degree density between the eyes. Clypeus with its lateral margin 

 convex; extension decidedly truncate and usually red; longitudinal 

 extension of impunctate apex equal to two-fifths the distance from 

 apex of clypeus to base of antennae. Antenna with the apex of 

 the first joint, the entire second and third joints, and the central 

 portion of the other joints reddish brown. Pronotum with its pri- 

 mary punctures rather sparse, especially on lateral disk; transverse 

 discal band not clearly differentiated; secondary punctures absent 

 or nearly so; medial extension of the punctate area about equal to that 

 of the impunctate area. Side of pronotum usually with a groove 

 across the center which is often surrounded by shorter, shallower 

 grooves or irregular punctures which make it inconspicuous. Scutum 

 with its notauli and its anterior medial grooves continuous. Scutel- 

 lum with a broad, shallow groove on the sides, Metanotum with 

 minute punctures on its borders much smaller than those of scutellum. 

 Legs with the tarsi and apices of tibiae reddish ; major calcarium of 

 hind tibia tapering both ways from near middle ; hind basitarsus with 

 a very short, shallow groove, and outside with three short, lanceolate 

 spines, one at apex. Tegula red, transparent, highly polished, two 

 times as long as wide, Avith inner hind corner conspicuously pro- 

 duced. Wings slightly smoky. Propodeal areola rectangular in 

 outline, twice as long ds wide, carinae high and uniform, with well 

 developed bordering grooves; median carina on upper three- fourths; 

 enclosed area flat and finely granulate. Lower portion of sides of 

 propodeum striate. Posterior aspect of propodeum faintly coria- 

 ceous along upper margin ; median carina usually absent. First ter- 

 gite with a well-defined preapical band, sometimes interrupted in 

 center, but exjDanded into a patch on each side, abruptly depressed 

 anteriorly. First sternite with faint, diagonal wrinkles apically; 

 disk not sculptured ; lateral grooves extending to anterior apex. Ter- 

 gites with very shallow punctures. Pygidium densely and uni- 

 formly punctate on basal half; impunctate apex scarcely wrinkled. 

 Length, 7 to 7.5 mm. 



Male. — Vertex with punctures back of ocelli of sparse third-degree 

 density, scarcely denser than on the sides of the vertex. Front with 

 its preocellar area wide and deep, with wide impunctate interspaces 

 nearly twice the width of an ocellus; secondary punctures not ap- 

 parent. Antennocvdar distance about equal to width of antennal 

 fossa. Clypeus abruptly tilted at an angle to the plane of the face; 

 extension with its margin truncate, broadly impunctate, sometimes 

 reddish, its apical width scarcely equal to the clypeoantennal distance. 

 Antenna with the apex of the pedicel and the flagellum beneath red- 

 dish. Pronotum sparsely coarse-punctate, with primary punctures of 

 third-degree density; area back of transverse carina with unusually 



