NO. 3533 CHALCID WASPS OF GENUS EURYTOMA — BUGBEE 459 



view; averages 1.3 mm. (1.2-1.5) in length; sculpturing heavy on 

 lateral surface of sixth, but disappears dorsally; segment six from a 

 dorsal view as long or longer than segments five and six combined; 

 ninth tergum short and stubby, averaging .09 mm. (.07-. 12) in length 

 with a small oval cercus on each side. Internal genitalia with broad 

 dorsal valves for horizontal length and very little dorsal extension 

 anteriorly; arch of the stylets in a horizontal to an oblique plane; 

 length of genitalia averages 1.3 mm. (1.1-1.5) and height averages 

 .88 mm. (.72-1.1); length thus about 1.7 times the height. Petiole 

 elongate; less than half the length of hindcoxa; a prominent pointed 

 scale on dorsal anterior surface, a small lateral projecting tubercle 

 on each side. Tegula yellow to dark brown. Propodeum with a 

 shallow concavity with a distinct median furrow demarked by lateral 

 carinae complete to base and a central carina for tln-ee-quarters of 

 length; furrow narrows to\\ard base; lateral areas finely punctate 

 ventrally and irregularly ridged dorsally. Antenna filiform; scape 

 yellowish brown; flagellum six segmented; joints longer than wide 

 but becoming progressively less so from base to tip; last segment 

 consisting of tln-ee closely fused units. Fine striae on face converging 

 on clypeus from below eyes and base of antennae. Legs may be all 

 yellowish brown or black smudge on middle of outer face of front 

 femora and tibiae; black infuscation encircling mid- and hindfemora 

 and tibiae; front coxae may be yellow or all black. Wing veins 

 yellowish brown to brown; marginal stout and broad but not heavily 

 chitinized; postmarginal short, stout, and truncate at outer end; 

 marginal averages .30 mm. (.25-.35) and postmarginal averages .20 

 mm. (.17-.25); marginal vein always longer than postmarginal by 

 about .10 mm.; stigmal vein short; club large and almost square. 



Males: Black. Average length, 2.9 mm. (2.2-3.3). Scape of 

 antenna yellowish brown or upper one-third black and rest yellowish 

 brown. Legs all yellowish brown or hindfemora and sometimes hind- 

 tibiae may have a brown to black smudge medially on outer surface ; 

 front coxae as in the female; midcoxae may be all yellow. Wing veins 

 yellowish brown to dark brown. Marginal averages .29 mm. (.27-.35) 

 and postmarginal averages .19 mm. (.15-.22). 



Types: 56 females and 63 males. Holotype female, allotype male, 

 and paratypes in the U.S. National Museum collection (USNM 06053). 



Type locahty: Wyatt, La., Oct. 31, 1934, Kinsey collection. 

 Emerged from June 14 to 30, 1935. 



Host: Disholcaspis spongiosa (Karsch) and D. guercus-globulus 

 (Fitch) on Quercus stellata, Kinsey collected and determined. 



Distribution: Southern Ohio and Ilhnois, south to the Gulf of 

 Mexico: east to the Atlantic coast and west to eastern Texas and 

 Missouri. This species seems to follow the coastal plain, extending 



