ART. 28 CHALCID FLIES NORTH OF MEXICO BALDTJF 71 



and with a discal triangle on prescutum, apex of triangle narrowed 

 to a broad niesal longitudinal stripe on posterior half of this sclerite, 

 stripe extending almost to margin, anterior disk of scapulae and at 

 times their lower edge, sometimes lower edge of axillae, often a 

 mesal longitudinal band on anterior half of scutel, anterior portion 

 of metapleura sometimes, upper front surface and the groove of pro- 

 podeum, and most of venter of thorax, black; legs bright honey 

 yellow, basalmost parts of front and middle coxae partly, and basal 

 portions of hind coxae in part, black, tibiae and tarsi almost stramine- 

 ous-yellow; stigma dark brown, a mere rudiment of submarginal 

 band present; peduncle and a dorso-median band with lateral pro- 

 jections on the first four segments, black, abdomen otherwise brown- 

 ish to ochreous-yellow. 



Head from above never quite twice so wide as long, about four- 

 sevenths as long as wide, face feebly rounded and protruding moder- 

 ately in front of eyes, rather sharply set off from margins of eyes, 

 vertex fairly convex, hind edge about straight transversely; malar 

 space smooth along groove, polished, becoming strigose toward 

 cheek, latter semismooth below, reticulate-punctate above, ocellar 

 area finely and densely punctate, rest of head surface reticulate, 

 sparsely and inconspicuously hairy ; scape nearly three times as long 

 as pedicel, latter conical, twice as long as its maximum diameter, 

 and one-fifth longer than Fl, Fl one-fourth longer than thick, F2 

 to F5 subequal, becoming more robust from second to fifth, second 

 only slightly shorter than Fl, fifth scarcely longer than broad; head 

 slightly more than a seventh broader than pronotum, and an eight- 

 eenth wider than mesothorax ; nota of prothoracic and mesothoracic 

 segments umbilicately punctate, moderately hairy, mesopleura acicu- 

 late, the posterior half more coarsely, both parts minutely punctate 

 but the front half densely so, 13 to 16 setae on submarginal vein; 

 dorsum of propodeum coarsely and variously rugose-reticulate, the 

 cells more finely sculptured, groove limited in front by a broadly 

 V-shaped carina, apex of carina almost arcuate, groove sculptured 

 much as the other propodeal surfaces, and shallowly rounded; ab- 

 domen mostly bare, and polished, shiny, mostly unsculptured, pos- 

 terior half more or less very finely granulose, hairy, and punctate 

 around ovipositor sheath. 



Male. — 3.5 mm. long, slightly slenderer than female, color darker 

 than female as follows: Occipital black area approaching closer to 

 eyes, and ocellar area black, neck blacker, and a mesal longitudinal 

 band extending from neck to pronotum, band broadening abruptly 

 from middle of pronotum to caudo-lateral corners and thus reaching 

 hind margin of the segment ; prescutum and propodeum more largely, 

 outer face of hind coxae, upper disk of hind femora, and dorsum of 



