. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES: PARASITIC HYMENOPTERA. 23 Chalcis praevalens Cockerell. There are two specimens of this species in the present collection M. C. Z., No. 2087, 2088 (Nos. 5279, 7939, S. H. Scudder Coll.). Chalcis tortilis, sp. nov. (Fig. 14.) Length mm. Head and thorax very coarsely and deeply separately punctate, the sculpture on the collar less deep, and confluent to form a transverse series of rather regular striatums. The parapsides especially to- ward the sides show the same' transverse striation. Punctures on the scu
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES: PARASITIC HYMENOPTERA. 23 Chalcis praevalens Cockerell. There are two specimens of this species in the present collection M. C. Z., No. 2087, 2088 (Nos. 5279, 7939, S. H. Scudder Coll.). Chalcis tortilis, sp. nov. (Fig. 14.) Length mm. Head and thorax very coarsely and deeply separately punctate, the sculpture on the collar less deep, and confluent to form a transverse series of rather regular striatums. The parapsides especially to- ward the sides show the same' transverse striation. Punctures on the scutel- lum larger and better separated than elsewhere. Mesonotum quite regularly reticulate. Abdomen smooth, ovate; narrow, only about two-thirds as wide as the thorax. Head as usual in the ge- nus, probably black; sides of the front obliquely striate. Antennae black; rather slender, the scape about half as long as the flagellum; basal flagellar joints about twice as long as thick. Parapsidal furrows very distinct, twice as far apart in front as behind. Scutel- lum about as wide as long, regularly rounded behind. Hind femora about twice as long as broad, beset below with rather small teeth, of a size and number very similar to those of the recent C. ovata Say. Hind tibiae stout, their curve conforming with that of the femur. Wings hyaline or nearly so. Marginal vein one-half the length of the submarginal. Stigmal long, its shaft at least twice as long as the width of the marginal vein at its insertion, knobbed at the apex. Post- marginal about one-half the length of the marginal. Described from four specimens. Type.—No. 2089, M. C. Z., Florissant, Col. (No. 1350, S. H. Scudder Coll.). Paratypes Nos. 2090-2092. Nos. 1065, 3538, and 5295, S. H. Scudder collection. In addition to these there is another (No. 2093, M. C. Z., No. 5672 S. H. Scudder Coll.) which is probably a ventral view of this species and also a side view (No. 2094 M. C. Z., No. 7679 S. H. Scudder Coll.) which seem
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