NO. 1866. NEW 8AWFLIE8 IN U. 8. NATIONAL MUSEUM— ROHWER. 401 



Fig. 5.— a pex of the 



SHEATH OF AMETASTEGIA 



(Emphytina) virginica 

 Rohwer. Dea wing from 



THE TYPE. 



EMPHYTINA VIRGINICA, new species. 



Female. — Length 6 mm. Clypeus broadly arcuate, lobes broad, 

 obtuse; supraclypeal area convex; supraclypeal and antennal foveas 

 confluent; middle fovea wanting; antennal furrows wanting; ocellar 

 area raised, ocellar basin wanting; postocellar area not defined; 

 postocellar line shorter than the ocelloccipital ; ocelloccipital line and 

 ocellocular line subequal; antennal joint three longer than four, 

 antennae pilose; stigma broad, rounded below; 

 sheath as in figure 5. Black; clypeus, labrum, 

 palpi, tegulae, posterior margin of pronotum, 

 lower part of mesoepisternum, mesosternum, 

 legs and venter white; dorsal segments in the 

 middle rufoferruginous (narrowed laterally). 

 Wings hyaline iridescent; venation dark brown. 

 Dixie Landing, Virginia. One female. Col- 

 lected May 27 by C. L. Marlatt. 

 Type.— Cat. No. 13978, U.S.N.M. 



EMPHYTINA PALLIDSCAPA, new species. 



Female. — Length 5 mm. Like virginica, except as follows: 

 Clypeus subsquarely emarginate, lobes obtuse; postocellar area 

 faintly defined all the way around; stigma broader 

 at base; sheath as in figure 6; scape white; vena- 

 tion pale brown; dorsal spots smaller. 



3Iale. — Length 4.5 mm. Sufficiently like the 

 female to be easily associated with it; postocellar 

 area not defined, hypopygidium broadly rounded. 



Washington, District of Columbia ( ?). Described 

 from a number of males and females recorded under 

 Bureau of Entomology number 3329. The follow- 

 ing note for February, 1884, made by Mr. A. Koebele 

 is of interest: "Found under bark of black birch (Betula nigra), near 

 ground, large numbers of saw-fly larvae which had hibernated; some 

 of them seem to be parasitized." Microgasterine and Chalcid para- 

 sites later issued from some of these larvae. 

 Type.— C^t. No. 13979, U.S.N.M. 



Fig. 6.— Apex of the 



SHEATH of AMETAS- 

 TEGIA (Emphytina) 

 PALLIDSCAPA R O H - 



WER. Drawing 

 from a paratype 



EMPHYTINA STRAMINEIPES (Cresson). 



The following notes from the type may be worth while: Postocellar 

 area hardly defined laterally; middle foveae and ocellar basin wanting; 

 clypeus subsquarely emarginate, lobes obtuse; sheath differing from 

 virginica in being more oblique below. 



94428°— Proc . N . M . vol .41—11 26 



