Sept., igii.] Girault: Notes on Hymenoptera Chalcidoidea. 179 



of the details of color and sculpture were difficult to interpret with 

 certainty. The species has already been recorded from the same host 

 and locality. 



Family EULOPHID.E. 



Subfamily Entedonin^. 

 Tribe Entcdonini. 

 Genus MESTOCHARIS Foerster. 

 Mestocharis williamsoni, new species. 



Female. — Length, 2 mm. 



Agreeing with the description of Mestocharis zvilderi Howard but the 

 metathoracic carina is paired, the lateral carinae distinct from it and the 

 fovea on the metascutum is absent. Colorationally as in zvilderi with the 

 exception that the metanotum is metallic greenish. Metanotum not punctate, 

 finely reticulate, the two narrow median carinae not quite parallel, diverging 

 gradually very slightly caudad and not very close together ; parapsidal fur- 

 rows represented by a conspicuous deep fovea on each side caudad ; medially. 

 the base of the mesoscutum longitudinally striate like the scutellum. Occipital 

 margin of vertex acute. Wings with short marginal fringes and moderately 

 dense, normal discal ciliation, hyaline, the marginal vein long, much longer 

 than the submarginai, the stigmal and postmarginal veins both short and sub- 

 equal ; posterior wings ciliate as the fore wing but the marginal cilia along the 

 caudal margin are longer; tarsi 4-jointed; lateral carinse of the metathorax 

 distinct, the disk of the metathorax elevated above the pleurua, its margins 

 carinated, forming the lateral carinse. Abdominal petiole distinct but short, 

 densely punctate ; second abdominal segment long, occupying nearly two 

 thirds of the body of the abdomen ; the remaining segments all short, longer 

 cephalad, the third transverse, longest of them, the fourth and fifth subequal, 

 shortest ; segments of abdomen polygonally reticulated, the large second seg- 

 ment shining, its sculpture faint and confined to its caudal half, the other 

 segments opaque. Ovipositor not exserted. Metathoracic spiracle regularly 

 elliptical, its axis nearly longitudinal, situated just beyond (laterad) the 

 lateral carina; in the lateral aspect of the metathorax a more or less 

 prominent conical projection. 



Antennas inserted about on a line with the ventral ends of the eyes ; 

 8-jointed, the club terminating in an acute spur-like projection which is 

 merely a prolongation of the second or apical club joint and hence not 

 counted as a joint ; scape, pedicel, ring-joint, 3 funicle joints and 2-jointed 

 club ; funicle joints subpedunculate. broad, tuberculate, the first distinctly 

 longer than wide, the second and third barely longer than wide, all some- 

 what compressed, the third wider than the second and about a fourth shorter 

 than the first ; pedicel normal, moderately long but distinctly smaller than the 

 proximal funicle joint, slightly shorter than joints 2 or 3 and not broad : scape 

 long, cylindrical but one margin convexed somewhat, slightly longer than the 



