ART. 17 WASPS OF THE GENUS TIPHIA ALLEN AND JAYNES 63 



Posterior aspect of propodeiim with median carina flattened, bor- 

 dered by shallow impressions, and extending to the transverse 

 carina. First abdominal tergite with the apical band consisting of 

 pimctures about one row wide at the center, widening at the sides 

 into a depressed patch of coalesced punctures. First sternite with 

 lateral groove on posterior three-fourths; other fourth coriaceous; 

 disk lacking the usual dense, minute punctures. Tergites with 

 preapical setigerous punctures becoming subdiscal medially where 

 impunctate apex is at least four times width of nearby primary 

 punctures; a row of minute punctures appearing on sides, but not 

 on dorsum back of the preapical setigerous row of punctures. Py- 

 gidium uniformly reticulo-punctate on basal half; apex scarcely 

 wrinkled. Length, 7.5 to 10.5 mm. 



Male. — Vertex with primary puncture in dorso-medial patch of 

 first-degree density. Front strongly shagreened; preocellar area on 

 upper half with primary punctures of regular second-degree and 

 third-degree density and with interspaces much broader than ocellus ; 

 secondary punctures nearly lacking, though primaries gradually di- 

 minish in size toward base of antennae. Antennocular distance less 

 than the width of antennal fossa. Clypeal extension with its apical 

 width slightly greater than the clypeoantennal distance ; disk flat but 

 protruding; apex distinctly roundly emarginate, with thick punctate 

 margin. Flagellum often broadly infuscated beneath. Pronotum 

 faintly shagreened; primary punctures small, and largely of third- 

 degree density; several secondary puncture.s antero-medially. Side 

 of pronotum striate, with strong groove, more or less interrupted by 

 diagonal rugulae, crossing center in a broad curve; no punctures. 

 Mesepi sternum conspicuously shagreened ; primary punctures dimin- 

 ishing in size and density away from the prepectus, everywhere of 

 third-degree density; secondary punctures conspicuously less numer- 

 ous than primaries over a vaguely defined area in center anterior to 

 spiracle. Scutellum without impunctate apex as wide as the lowest 

 primary punctures. Metanotum variable. Tibiae and femora some- 

 times partially reddish. Tegula polished and faintly shagreened, 

 varying from transparent reddish to opaque black. Wings sub-hya- 

 line, with radial cell exceeding second cubital cell in apical extension. 

 Propodeum with its transverse carina extending far forward medi- 

 ally ; areola about one and one-fourth times as long as wide, its sides 

 slightly convergent, the lateral carinae somewhat crenulate on the outer 

 border, the medial carina taperingtoapex which is situated just before 

 transverse carina ; inclosed area flat, granulate ; lower portion of sides 

 of propodeum densely striate, not finely hairy or punctate ; posterior 

 aspect densely hairy, punctate except on the conspicuous, polished, 

 impunctate spots above, with a median carina present on lower half 



