no. 3644 TIPHIIDAE — KROMBEIN 17 



sparse vestiture, and the clypeal margin is rounded out in the middle, 

 not dentate. 



Female. — Length 13.5, forewing 8 mm. Black, the head red except 

 apex of mandible, hypostomal area, and flagellum, the abdomen with 

 weak blue reflections; wings moderately infumated on outer two- 

 thirds, the darker part with bronzy and violaceous reflections. 



Head from above with length (apex of antennal insertions to occiput) 

 subequal (0.93) to the width across eyes; clypeal keel relatively weak, 

 present on basal half only; median lobe of anterior clypeal margin 

 narrowly rounded, the paired teeth obsolescent; lower half of front 

 with a weak median groove, and scattered, contiguous to subcon- 

 tiguous, moderate-sized punctures; remainder of front and vertex 

 with a few scattered, minute punctures; ocellocular distance only 

 1.33 times the postocellar distance, and 0.50 times the ocelloccipital 

 distance; anterior ocellus slightly closer to occiput than to apices of 

 antennal tubercles; head beneath with posterolateral angles rounded; 

 distance between occiput and hypostomal carinae subequal to length 

 of hypostomal area. 



Pronotal disk strongly ridged anteriorly, immediately behind the 

 ridge with a row of subcontiguous, moderately large punctures, else- 

 where with very scattered, small punctures; scutum with 18-20 

 shallow pits of varying size on posterior two-thirds; scutellum simi- 

 larly sculptured with about a dozen pits; mesopleural disk not pro- 

 duced anteriorly, its surface with the pits more scattered than in 

 other species; dorsal propodeal surface rather densely punctate 

 laterad of narrow cuneate space, the punctures small except pos- 

 teriorly; posterior surface weakly ridged above, with moderate, 

 subcontiguous pits. 



Disk of first tergum strongly ridged anteriorly, behind the ridge 

 a row of subcontiguous pits; last tergum polished, the apical fourth 

 impunctate. 



Inferior margin of hind femur right-angled at middle; hind tibia 

 at apex without short, flattened setae. 



Male. — Length 11, forewing 7.5 mm. Color as in female except 

 antenna entirely black, and wings more strongly infumated and with 

 violaceous reflections. 



Clypeal keel strong, present on basal three-fourths; clypeus with 

 median lobe of apical margin narrowly rounded, teeth indistinct; 

 distance from apex of frontal platform to occiput 0.92 times the 

 width across eyes; front with contiguous and subcontiguous punc- 

 tures on lower two- thirds and scattered punctures above; vertex 

 with a few small punctures; ocellocular distance 1.57 times the post- 

 ocellar distance, and 0.61 times the ocelloccipital distance; occipital 



