534 PROCEEDINGS O'F THE NATIONAL MUSEUM you 93 



median carina vague or wanting; submarginal vein of forewing with 

 one dorsal bristle, hindwing acute at apex, fringe at posterior margin 

 one-half width of wing at hamuli ; anterior scutellar bristles longer 

 than posterior ones. Surface of propodeum almost smooth, mesal 

 length one-half length of mesoscutellum ; median carina only present; 

 spiracles contiguous with anterior margin; gaster usually short, broad, 

 shorter than thorax, although sometimes slightly elongate. 



Male. — Length, 1.2 mm. Scape broadened from near base to apex, 

 with darkened anterior carina extending almost entire length of 

 scape: first funicle segment three-fourths as long as pedicel, second 

 segment equal to pedicel, third and fourth equal and each one-eighth 

 longer than second; club slightly longer than three distal funicle 

 segments; gaster shorter than thorax. 



Type locality. — Jacksonville, Fla. 



Types.— U.S.N.M. No. 21017. 



Host. — The boxwood leaf miner, Monarthropalpus buxi (Laboul- 

 bene). 



Distribution. — District of Columbia, Florida, Maryland, Tennessee. 



TETRASTICHUS HILLMEADIA (Girault), new combination 



Ootetrasiichu8 Mllmeadia Giraixlt, Chalcidoidea nova Marilandensis, pt. 3, p. 2, 

 1917. 



Thorax iridescent blue-green: legs white; base of abdomen white, 

 distal part brown and slightly iridescent. 



The single available specimen of this species is in such poor condi- 

 tion that the character given here may be shown, when additional 

 material is available, to be partly or wholly incorrect. 



Female. — Length, approximately 1.0 mm. First funicle segment 

 narrower than second, but slightly longer, second and third segments 

 equal in length, club twice as long as pedicel; length of malar space 

 one-half as great as height of compound eye; pronotum with an in- 

 distinct femoral groove; only one bristle at each lateral margin of 

 mesopraescutum ; submarginal vein of forewing apparently with one 

 dorsal bristle; hindwing acute at apex; surface of propodeum smooth, 

 median carina present, paraspiracular carinae absent; gaster one and 

 one-half times as long as thorax. 



Male . — Unkn o wn . 



Type locality. — Glenn Dale, Md. 



Type. — U.S.N.M. No. 21540. (Specimen in very poor condition.) 



Host. — Unknown. 



Distribution. — Maryland. 



TETRASTICHUS SOLIDAGINIS, new species 



Head, thoracic pleura and sternum, and gaster dull brown ; dorsum 

 of thorax and propodeum shining black; antennal pedicel and fla- 



