222 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I25 



Female (pi. 32, figs. 202-204, and pi. 35, fig. 246). — 2.3 mm. long. 



Head : Dichoptic. Eyes black ; fronto-ocular triangle very small, 

 its base about equal to its height. Antenna 680 /a long, 1 1 -segmented ; 

 segment 3<i-|-2, 3<44-5, 3=11 ; scape and pedicel brown, flagellum 

 black. Palpi brown. Frons black, slightly white-pruinose, with i row 

 of black hairs on lateral margins. Clypeus black, white-pruinose, ir- 

 regularly covered with short black hairs. Occipital region black, with 

 short black hairs. Cornuae of buccopharyngeal apparatus heavily 

 sclerotized, ending in sharp points ; median space hyaline, smooth. 



Thorax : Mesonotum velvety black, with 3 longitudinal bands ex- 

 tending down the scutum; one band is along the midline; each of the 

 other two are lateral to the middle band, starting anteriorly as an 

 extension of a large triangular-shaped patch of white pruinosity which 

 is contiguous with the anterior margin ; the two lateral bands are di- 

 vergent near their midregion; all three bands terminate where they 

 blend with the white pruinosity of the prescutellar region ; lateral 

 margins also white-pruinose ; short black hairs scattered over dorsum, 

 denser on anterior half and in prescutellar region. Humeral angles 

 dark brown, with some pruinosity. Scutellum shiny black, with long 

 black hairs and some short ones. Postnotum dark brown, the anterior 

 half white-pruinose, devoid of hairs. Pleura dark brown, with white 

 pruinosity. Stem of halter brown on the base and tan toward the apex, 

 knob yellow. Wings, 2.4 mm. long and i.o mm. wide ; relation of body 

 length to wing, 1:1; Sc pilose along basal seventh ; Rj spiny along 

 distal half ; R2+3 pilose except for very small basal section ; Cu2 

 arcuate ; discal cell absent. 



Legs : Leg i, length, 2.6 mm. ; coxa brown ; trochanter light brown ; 

 femur light brown with dark-brown apical ring ; tibia with basal and 

 apical fourths black, the median half light brown ; tarsus black. Leg 2, 

 length, 2.5 mm. ; coxa and trochanter brown ; femur brown on basal 

 three-fourths, black on apical fourth; tibia black on basal and apical 

 thirds, light brown in midregion ; basitarsus and second tarsal seg- 

 ment tan except for small brown apical ring ; tarsal segments 3-5 tan 

 to black. Leg 3, length, 2.7 mm. ; coxa and trochanter dark brown ; 

 femur brown on basal two-thirds, the apical third dark brown ; tibia 

 dark brown on basal and apical fourths, brown in midregion; basal 

 two-thirds of basitarsus and basal half of second segment tan, the re- 

 mainder of these segments, as well as all of segments 3-5, black ; rela- 

 tion of basitarsus to second segment, 5.8: i ; calcipala well developed, 

 overreaching the pedisulcus ; pedisulcus well developed one-third the 

 distance from the base of second segment ; claw with well-developed 

 heel and subbasal tooth (pi. 35, fig. 246). 



