NO. 2293. PARASITIC CHALCIDOID FLIES— TIMBERLAKE. 179 



2. Hind tibiae unicolorous and not annnlated with black 3 



Hind tibiae yellow with two black or blackish brown annuli; head and body 



yellow; the center of occiput, pronotum except the collar, anterior half of mesos- 

 cutiim. axillae, generally most of scutellum except apex, metanotum, pro- 

 podeiim, dorsum of abdomen except the base and a spot behind the tactile 

 plates, and a spot on each side of venter near the middle shining black or blackish 



brown; scape and pedicel yellow, the flagelliim more brownish 2 



2. iceryae Howard. 



3. Shining blackish brown, but the head, collar of pronotum, hind border of mesos- 



cutum, axillae, anterior half of pleura and the legs except the hind tibiae yellow, 



the latter blackish; antennae yellow, with the club pale brown 3 



3. flaviceps (Dalman). 

 General color wax yellow but the frontovertex, most of mesoscutum and the 

 scutellum in the female pale ochraceous orange; hidden part of pronotum, axillae, 

 propodeum and most of dorsum of abdomen brownish black; legs yellow, the 

 tibiae a little darker, the tarsi more whitish; scape and pedicel yellow, the 

 flagellum brownish yellow 4. axillaris, new species. 



4. Head and thorax mostly orange ferruginous 5 



General color blackish brown, but the head and mesopleura more brownish, the 



collar of pronotum whitish, the posterior corners of mesoscutum yellow; legs 

 dark brown, the front tibiae paler, the front and middle femora and tibial spur 



brownish yellow; antennae brown 5. rinulus (Dalman). 



. General color orange ferruginous but the metanotum, propodeum, abdomen, hind 

 tibiae, and all tarsi in large part dark brown or brownish black; the brown spot 

 on wings restricted; frontovertex hardly over two and a half times longer than 

 wide; axillae elevated above level of scutellum... 6. atriventris Ashmead. 

 Color similar but the mesoscutum sometimes brownish except at the posterior 

 corners and only the dorsum of abdomen blackish brown; the brown spot on 

 wings extending across the disk; frontovertex about three times as long as wide; 



axillae hardly elevated, and the scutellum generally much less convex 7 



7. puncticeps (Howard). 



1. ISODROMUS NIGER Ashmead. 



Plate 41, fig. 19. 



Isodrovius niger Ashmead, Proc. U. S. Nat. Mus., vol. 2'2, 1900, ]'. 379. 



Female. — ^Head only moderately thick fronto-occipitally, the planes 

 of the frontovertex and face meeting in an obtuse angle, the dorsal 

 surface not much shorter than the facial surface in side view ; fronto- 

 vertex rather narrow but short or about tv»^o and one-half times 

 longer than wide, the dorsal orbits slightly convex so that the fronto- 

 vertex is narrowest just before the median ocellus; ocelli forming an 

 angle of somewhat less than 60°, the posterior pair almost touching 

 the eye margins, the median ocellus situated a little behind the middle 

 of the frontovertex; antennal sockets rather close together, the 

 distance between them equaling their length, their inner rims nearly 

 parallel; scrobes distinct, reaching well above a line connecting the 

 lower corners of eyes. Antennae short, the scape subcylindrical, 

 somewhat thicker on apical half and with a pedicellar furrov/ on the 

 underside near apex; pedicel as long as the first two funicle joints 

 combined; funicle joints increasing somewhat in width distad, all 



