2 PROCEEDINGS OF THE NATIONAL MUSEUM vol.76 



GLUTOXYS, new genus 



Hypopleurals present; i^ostscutellum wanting; eyes bare; arista 

 long plumcse for about two-thirds of its length; third antennal 

 joint long, reaching the vibrissae, which are at the oral margin; 

 antennal axis a little longer than vibrissal ; paraf acials bare, narrow ; 

 facial ridges very flat ; front narrow, with a single row of f rontals, 

 all somewhat reclinate, reaching to base of antennae; palpi rather 

 small ; proboscis fleshy, short. First vein bare, fourth with broadly 

 rounded bend ending exactly in apex; first posterior cell open. Sec- 

 ond and third abdominal segments with discals. 



Genotype. — Glutoxys elegans^ new species. 



GLUTOXYS ELEGANS, new species 



Male. — Head and abdomen black; thorax yellow; front at narrow- 

 est near middle 0.17 of head width; outer verticals not developed; 

 ©cellars very minute ; paraf rontals silvery, a little wider than median 

 stripe; antc/mae blackish, third joint nearly three times the second; 

 cheek almost bare, about one-sixth of eye height ; palpi dark yellow. 

 Thorax wholly yellow in ground color, including metanotum ; viewed 

 from behind with a very distinct silvery band just in front of suture, 

 extending down the side to cover the sternopleura and middle coxa; 

 also with thin silvery pollen extending across the thorax just in front 

 of the scutellum. Chaetotaxy: dorsocentral 3, 3; acrostichal several 

 pairs hair-like, one larger anterior and a prescutellar a little larger; 

 humeral 2; presutural 1; notopleural 2; supraalar 2, (posterior 

 large); intraalar 0; sternopleural 2; pteropleural 0; hypopleurals 

 about 4. 



Abdomen rather slender, narrow and pointed posteriorly, black 

 in ground color with broad basal silvery bands covering anterior 

 half of second and third segments; fourth segment mostly silvery; 

 first segment with marginal row, smaller along the middle; second 

 with marginal row of six widely separated ; third with marginal row 

 of eight; fourth with apical row of about eight and a single pair 

 of discals as in the second and third. Genitalia small. 



Legs black, the coxae and basal half or more of all femora yellow. 

 Claws and pulvilli only a little enlarged; middle tibia with one 

 smallish bristle on outer side; hind tibia with only one outer and 

 one inner on the hind side and one on the outer front. 



Wings yellowish with a faint dark mark extending from base of 

 third vein forward to costa; third vein with three or four bristles 

 at base ; first vein ending directly in front of small cross vein ; apical 

 cell open in tip of wing; hind cross vein slightly longer than last 

 section of fifth vein, joining fourth almost in the middle between 

 anterior cross vein and bend. 



