NO. 2219. .4 REVISION OF THE CREMASTINI—CUSnUAN. 623 



testaceous, without markings, though shghtly paler on the pro thorax 

 and scutellum; tergites 1 to 3 at base and 5 and 6 entirely piceous or 

 blackish; wings faintly yellowish hyaline. 



Type-locality. — Washington, District of Columbia. 



Other localities. — Rosslyn, Virginia, Southern Illinois, Ohio, Penn- 

 sylvania, Biscayne Bay, Florida. 



Tyye.—Qat. No. 20259, U.S.N.M. 



Described from three specimens from the District of Columbia (type 

 and paratypes a and g), one from Rosslyn, Virginia (paratypo h), two 

 from Biscayne Bay, Florida (paratypes c and d), one from Ohio (para- 

 type e), one from Pennsylvania (paratype/), and one from southern 

 Illinois (paratype h). Paratypes a and d arc very like the type. difTering 

 slightly in size and in intensity of color at apex of abdomen. Paratype 

 e also differs in having the head darker without distinct pale markings 

 (possibly stained); paratypes/, g, and h show progressive degrees of 

 development of a black spot at the base of the propodeum and around 

 the scutellum, and enlargement of the occipital and ©cellar spots until 

 in h these are broadly united. 



CREMASTUS (CREMASTUS) MINOR, new species. 



Female. — Length 7 mm., antennae 4 mm., ovipositor 2 mm. 

 Head in front view nearly oval, checks below eyes slightly rounded; 

 face in middle elevated, clypcus convex, both transversely and in 

 profile, about two-thirds as long as interfoveal line and about equal 

 to foveo-ocular line, suture curved above foveae; malar space slightly 

 shorter than basal width of mandible; eyes slightly longer than 

 width of face, parallel within; temples strongly rounded; lateral 

 occllar, postoccllar, and occll-ocular linos 1:1.75:1, ocelli 1. Thorax 

 slender, propodeum gently sloping and reaching distinctly beyond 

 middle of coxae; thorax as a vrhole rather weakly punctate, pol- 

 ished in the longitudinal impression of mcsopleura, notauli distinct 

 anteriorly and more heavil}^ sculptured, stcrnauli weak; scutellum 

 convex, without carinae; propodeum with areola separated from 

 petiolar area and distinctly shorter, apical areas transversely rugu- 

 lose, others punctate; legs slender, hind basitarsus about three- 

 fifths as long as tibia and about as long as next three united, last 

 tarsal joint nearly as long as third; stigma two-fifths ns wide as long, 

 radius slightly behind middle; second abscissa of radius nearly 

 straight; second recurrent distinctly postfurcal; basal vein nearly 

 straight; nervulus interstitial; nervellus perpendicular, not broken. 

 Abdomen distinctly less than twice as long as head and thorax; 

 first tcrgite barely longer than propodeum, petiole flattened above, 

 with strong carinae and with sternite nearly inclosed by tergitc; 

 second tergite nearly four times as long as basal width of lirst, not 

 longitudinally aciculate; first two tergites together about as long as 

 rest combined; ovipositor about twice as long as first tcrgite. 



