200 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 12$ 



(larva). — Dalmat, Ann. Ent. Soc. Amer., vol. 44, No. i, pp. 55-57, I95i 

 (presence in Guatemala). 



Male (pi. 25, figs. 67-69). — 4.6 mm. long. 



Head: Holoptic. Eyes dark reddish black. Antenna 700 fi, 11- 

 segmented; segment 3>i+2, 3 = 4 + 5, 3>ii; segment 3 is widest, 

 the remainder of flagellum tapering slightly ; scape and pedicel brown, 

 the flagellum black. Palpi black. Clypeus brown, white-pruinose, with 

 long, strong, black hairs. 



Thorax : Mesonotum dark burgundy to black, covered with white 

 pruinosity throughout and with 3 longitudinal black lines running 

 from anterior margin to prescutellar region ; narrow, long, bronze- 

 colored, scalelike hairs completely covering the mesonotum, in packets 

 on anterior half, longer in prescutellar region ; short black hairs over 

 entire mesonotum, long black ones in prescutellar region. Humeral 

 angles shiny brown with golden scalelike hairs and short black hairs. 

 Pleura with anterior half dark brown and posterior half light brown, 

 all evenly white-pruinose. Scutellum brown, with long, strong, black 

 hairs and yellow scalelike hairs. Postnotum brown, the anterior half 

 white-pruinose. Stem of halter with light-brown base and dark-brown 

 apex, knob tan. Wings, 4.2 mm. long and 1.8 mm. wide; relation of 

 length of body to wing, 1.1:1; Sc pilose along its basal fourth; Ri 

 with spines along its apical half with only 2 or 3 hairs scattered 

 among them; R2+3 pilose along the distal two-thirds, the hairs very 

 sparse ; Cu2 arcuate ; discal cell absent. 



Legs : Leg i, length, 4.4 mm. ; coxa, trochanter, and femur brown ; 

 tibia and tarsus black. Leg 2, length, 3.9 mm. ; coxa, trochanter, 

 femur, and tibia brown ; basal two-thirds of basitarsus and basal half 

 of second tarsal segment light brown, the remainder of these segments, 

 as well as all of segments 3-5, black. Leg 3, length, 4.6 mm. ; coxa 

 dark brown ; trochanter light brown ; femur with basal fourth brown, 

 the apical three-fourths black ; tibia with anterior fourth tan, the re- 

 mainder black ; basitarsus spindle-shaped, with basal half tan, re- 

 mainder black ; tarsal segments 2-5 black ; relation of basitarsus to sec- 

 ond tarsal segment, 4.5 : i ; calcipala broad, somewhat curved, well 

 developed, reaching pedisulcus ; pedisulcus well formed on basal third 

 of second segment. 



Abdomen : Tergite i with anterior half brown and posterior half 

 black; pleurites black, white-pruinose, with long black hairs almost 

 reaching segment 4. Segment 2 with anterior half brown and posterior 

 half black, all white-pruinose. All other segments black with the an- 

 terior half of the pleurites white-pruinose; segments 3 and 4 with 



