316 PKOCEEDINGS OF THE NATIONAL MUSEUM vol.88 



a narrow flange, which is only slightly depressed on meson ; metepi- 

 sternum with large, deep pits, pubescence long, sparse; metacoxa 

 minutely shagreened on outer dorsal side, ventral side with short 

 setae; outer surface of metafemora densely covered with short setae, 

 15-25 small, acute teeth present on ventral margin ; inner tooth acute. 



Propodeum provided with strong mesal and apical carinae, two 

 basolateral areas more weakly and irregularly carinate, areas between 

 carinae minutely reticulated, spiracular openings slightly slanted 

 laterad, propodeum with a small projection at each posterolateral 

 angle; petiole slightly less than twice as long as wide, all exposed 

 surfaces with minute shagreening and short carinae, basal lamina 

 narrow, interrupted at dorsolateral angles, lateral carinae present; 

 gaster slightly longer than metafemur, abdominal tergites 4 to 7 

 with sparse lateral setae ; eighth tergite minutely reticulated, sparsely 

 setose, spiracular openings round ; cerci oval, located midway between 

 anterior and posterior margins of epipygium; apex of ovipositor 

 sheath with a few short setae. 



Male: Unknown. 



Type locality. — Texas. 



rypes.— Holotype, female, Brownsville, Tex., May 26, 1919, C. 

 Heinrich; paratypes, same data as holotype, 4 females. All types 

 deposited in the U. S. National Museum. 



Host. — Unidentified microlepidopteron on Lantana horrida. 



SPILOCHALCIS MELANA, new species 



Figure 9, g 



This minute, black species bears a superficial resemblance to S. side 

 (Walker), but the presence of a frontogenal suture in S. melana will 

 separate them at once. This species is structurally close to S. apaiis, 

 described above, in having the scape short, head broadly rounded,' 

 anterior margin of pronotum carinate, and the thorax broad and 

 somewhat flattened (as in fig. 10, c) ; it differs in being almost entirely 

 black instead of varicolored, having the petiole three times as long 

 as wide (rather than only twice as long as wide), and having a 

 minute carina on the interantennal projection. 



Descnption.— Black; mandibles, antennal scape, protibiae, meso- 

 tibiae, and all tarsi, yellow. Conspicuously covered with long, white 

 setae. 



Female: 2 mm. Apex of antennal scape not reaching level of 

 ventral margin of anterior ocellus, pedicel one and one-half and rino- 

 segment one-third length of segment 4, segments 5 to 10 equal, as 

 wide as long, last three slightly shorter; scrobe cavity shallow,' al- 

 most glabrous, lateral margins irregular; interantennal projection 

 with a minute anterior carina; combined widths of compound eyes 



