26 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 76 



and popilliaa)ora^ but the biological and anatomical characters were 

 .sufficiently different to permit of subsequent segregation and to in- 

 sure the association of males and females with a reasonable degree 

 of certainty. 



4. TIPHIA ASSAMENSIS, new species 



Female. — Vertex densely punctate with elongated punctures which 

 \ary irregularly from first to second-degree density, but which are 

 densest between ocelli and at the upper inner corners of the eyes; a 

 few minute punctures on dorso-medial line extending nearly to 

 ocellar triangle. Front shagreened below, with pronounced im- 

 punctate stripe and groove; primary punctures large and elongated 

 upward, everywhere of first-degree density save in limited areas 

 around lowest ocellus where they are of second-degree density, about 

 equalh^ distributed between the eyes below. Clypeus with convex 

 lateral margin; extension with its margin impunctate save for 

 scattered, minute punctures, longitudinal extension one-third distance 

 front apex of clypeus to base of antenna. Antenna with third joint 

 distinctly longer than greatest width. Pronotum with its carina 

 complete and very sharply erect; primary punctures large and 

 elongated, everywhere of first-degree density, without trace of discal 

 band or of sparseness on lateral disks; secondary punctures lacking; 

 longitudinal extension of punctate area medially less than the im- 

 punctate area. Side of pronotum with the usual ventral striations 

 becoming deeper near center, but not developed as an unbroken groove 

 for as much as half the length of sclerite. Mesepisternum with 

 a well defined premarginal groove on the posterior slope. Metaster- 

 num with an impunctate apical callosity and numerous coarse pri- 

 mary punctures nearly as large as the primary punctures of the 

 scutellum. Legs with the major calcarium of the hind tibia tapering 

 from the base, without a sharp bend near the middle ; hind basitarsus 

 on outside with row of two spines terminating before the apex. 

 Tegula without line on the lateral margin, but with a shallow, in- 

 cised line on posterior margin. Propodeal areola hastate, strongly 

 convergent, one and one-half times as long as wide; lateral carinae 

 with interrupted bordering grooves on the outside anteriorly ; medial 

 carina developed on the upper half or less; enclosed area unusually 

 flat and highly polished. Lower portion of sides of propodeum with 

 minute, setulose punctures on lower half. Posterior aspect of pro- 

 podeum densely hairy, with scattered punctures on upper disk ; carina 

 sharply elevated on lower half or less. First tergite without pre- 

 apical band, but with deep preapical groove broadly overlapped at 

 the middle, and with dimpled punctures on the dorsum. First 

 sternite occasionally with a prominent, crenulate medial groove; 

 lateral grooves on posterior fourth ; disk faintly and wavily wrinkled. 



