l82 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 12$ 



trochanter yellow ; femur yellow with apical fifth black ; tibia primarily 

 yellow with basal black patch and distal quarter black ; basal two- 

 thirds of basitarsus and basal half of second tarsal segment yellow, the 

 remainder of these segments, as well as all of segments 3-5, black. 

 Leg 3, length, 3.8 mm. ; coxa black ; trochanter yellow ; femur yellow 

 with its apical fifth dark and with very small basal dark ring; tibia 

 yellow, with basal and apical black areas and with its outer edge also 

 black ; basal half of basitarsus yellow, apical half black ; tarsal segments 

 2-5 black ; relation of basitarsus to second joint, 4.1 : i ; calcipala short 

 but well developed, reaching about halfway to pedisulcus ; pedisulcus 

 well developed on basal third of second segment. 



Abdomen : Tergite and pleurites of first segment very dark brown 

 to black, with long white hairs and short black ones. Segment 2 

 black, with anterior region of tergite and all of pleurites white-prui- 

 nose. Remaining segments dark brown to black, with pruinosity 

 evenly covering them. Sternites light brown with median, longi- 

 tudinal, shiny, dark-brown stripe. 



Genitalia: Sidepiece (pi. 24, fig. 55) rectangular, wider than 

 long ; dorsal opening oval, occupying basal half of sidepiece. Length 

 of clasper (pi. 24, fig. 55) three times its width, its central region 

 expanded owing to bulge along outer margin ; apical spine small, nar- 

 row, slightly blunt, somewhat removed from the tip of clasper. Body 

 of adminiculum (pi. 24, fig. 56) much wider than long, its width 2.4 

 times the length of the apical prolongation ; apical prolongation short 

 and wide in comparison with those of rubicundulum and acatenango- 

 ensis, with concavity at its tip, and numerous hairs along its margins ; 

 ventral surface of body of adminiculum with several short hairs ; 

 basal prolongations of the body well sclerotized, but not greatly ex- 

 panded to form spatulate process. Adminicular arms (pi. 24, fig. 57) 

 with approximately 14 teeth, grouped in domelike fashion ; lateral 

 plate almost rectangular, very slightly sclerotized. 



Female (pi. 31, figs. 175-177, and pi. 35, fig. 239). — (First pub- 

 lished description of female.) 4.3 mm. long. 



Head : Dichoptic. Eyes very dark reddish brown to black ; height 

 of fronto-ocular triangle 1.6 times the base. Antenna 580 11 long, 11- 

 segmented, well tapered; segment 3<i-)-2, 4-I-5, or 11; scape and 

 pedicel tan, flagellum slightly darker. Palpi with base brown, the 

 apex dark brown. Frons brown, with white pruinosity, irregularly 

 clothed with short yellow hairs and longer black ones. Clypeus light 

 brown, with white pruinosity, irregularly covered with short golden 

 hairs which are somewhat longer on the lateral margins. Occipital 

 region brown, with white pruinosity and short black hairs. Cornuae 



