NO. 3533 CHALCID WASPS OF GENUS EURYTOMA — ^BUGBEE 471 



an elongated abdomen with considerable lateral compression and an 

 elongated ninth tergum. The dorsal valves of the genitalia are narrow 

 for their horizontal length. The yellow legs, tegula, antenna, the 

 very short postmarginal vein in relation to the long marginal, and the 

 four pedicellate segments of the male antenna instead of five, wOl 

 distinguish this new species from those mentioned above. 



32. Eurytoma contractura, new species 



Figures 13, 31; Map 15 



Female: Black except for tarsi and extremities of femora and tibiae. 

 Average 3.0 mm. (2.4-3.4) in length. Abdomen averages 1.7 mm. 

 (1.6-1.8) in length; longer than head and thorax combined and 

 laterally compressed; sixth segment longer than two and thi'ee com- 

 bined, or about a third length of abdomen; densely scidptured on 

 lower half; sparse, silvery pile on segments seven and eight. Ninth 

 tergum long and pointed, averaging .22 mm. (.20-.25) in length. 

 Internal genitalia averages 1.7 mm. (1.6-1.8) in length and 1.1 mm. 

 (1.0-1.2) in height; dorsal and ventral valves turn dorsally, anteriorly 

 at a right angle; stylet arch in an oblique plane; dorsal valves entirely 

 black and narrow for horizontal length but expand, after turning 

 dorsally, into a broader plate; ventral valves expand dorsally into a 

 broad plate averaging .20 mm. at widest part, Propodeum with a 

 wide concavity that is practically all median furrow; lateral areas 

 absent; surface with irregular, horizontal ridges; lateral carinae in 

 upper half to two-thirds. Tegula black. UmbUicate punctures on 

 pro- and mesothorax very shallow and widely spaced with shagreened 

 surfaces between; punctations fade into a shagreened area on anterior 

 tliird of mesothorax. Antenna with the scape black; flagellum with 

 five longer than wide truncate segments ; first segment about twice as 

 long as wide; sixth separated from seventh by a deep annulation and 

 slightly swollen so that antenna appears wealdy clavate. Legs with 

 coxae black and black to dark-brown infuscation on all femora and 

 tibiae. Wing vems yellow and linear; marginal vein averages .25 

 mm. or about 1.3 times the length of the postmarginal that averages 

 .19 mm. (.17-.20). 



Male: Color as in the female. Averages 1.8 mm. (1.4-2.1) in 

 length. Antenna with five longer than wide pedicellate segments; 

 last two closely fused. Wing vein relationships as in the female 

 except both veins shorter; marginal averages .21 mm. and postmar- 

 ginal .16 mm. in length. 



Types: 6 females and 6 males. Holotype female and allotype in 

 the collection of the Department of Agriculture, Ottawa, Canada. 

 Paratypes in the Bugbee collection, Allegheny College, Meadville, Pa. 



