ART. 3 SOME NEW CHALCID-FLIES TIMBERLAKE 19 



bare area at the base of wing, with a few fine, nearly transparent 

 setae arranged in about four oblique rows more or less distinctly 

 continuous with the rows of setae between the speculum and the 

 apex of the submarginal vein. 



Frontovertex, most of face and cheeks, upper part of occiput, pro- 

 notum and mesonotum, anterior end of the mesopleura, about the 

 apical third of abdomen and sides of venter nearly capucine yellow 

 (Ridgway) ; oral margin of face and cheeks, lower part of occiput, 

 propleura, posterior margin of pronotum very narrowly, a little 

 more than the basal third of abdomen, the antennae and protruded 

 part of the ovipositor sheaths paler or about light orange yellow 

 (Ridgway) ; the legs in part and medial line of venter considerably 

 paler or about pale orange yellow (Ridgway), although the coxae, 

 femora, and tarsi are more whitish and the hind tibiae pale brown, 

 darker at base and light at apex ; apex of scutellum, the metanotum, 

 and the propodeum about antique brown (Ridgway), the meta- 

 pleura and posterior half of mesopleura about raw sienna (Ridg- 

 way) ; a narrow transverse band at middle of abdomen nearly black, 

 covering about one-fifth of the whole length and passing slightly 

 over onto the sides of the venter. Wings hyaline, the infuscated 

 crossband beneath the marginal and stigmal veins interrupted just 

 below the middle of the disk by a longitudinal pale streak parallel 

 with the posterior margin, the band below the interruption some- 

 what paler; a small brown spot also present on both sides of the 

 base of the submarginal vein; most of the submarginal vein very 

 pale, the rest of the venation brownish. 



Length of body, exclusive of ovipositor, 1.78; length of head, 

 0.521; width of head, 0.542; thickness of head frontooccipitally, 

 0.332; width of frontovertex, 0.160; length of scape, 0.285; length 

 of pedicel and funicle combined, 0.329 ; width of mesoscutum, 0.568 ; 

 length of fore wing, 1.445 ; width of fore wing, 0.497 ; length of pro- 

 truded part of ovipositor, 0.867 mm. 



Described from one female (holotype) reared from leery a palmeri 

 Riley and Howard, collected June 28, 1897, at Frontera, Tabasco, 

 Mexico, on the bark of a dyewood tree called " moral " (Dr. C. H. T. 

 Townsend), U. S. Insectary No. 4274". 



Type.— Csit. No. 28143, U.S.N.M. 



TACHARDIOBIUS, new genus 



In Mercet's table T achardiobius runs to Metaprionomitus Mercet; 

 it is distinguished therefrom by the flattened face, strongly sulcate 

 scrobes, emarginate anterior margin of the frons, the obsolescent 

 postmarginal vein, the longer stigmal and the nonmetallic color; 

 the male differs in having much shorter nonverticillate hairs on the 

 antennae and in having all of the funicle joints cylindrical. 



