NO. 3533 CHALCID WASPS OF GENUS EURYTOMA — BUGBEE 481 



addition to those listed in the key, are given in the section entitled 

 "Remarks," under the succeeding species. 



43. Eurytoma vernonia, new species 



Figure 15; Map 21 



Female: Medium-sized species averaging 2.1 mm. (1.8-2.5) in 

 length. Black except for proximal and distal extremities of tibiae 

 and femora, all of tarsi and wing veins which are yellow to yellowish 

 brown. Abdomen dorsally arched anteriorly, triangular in shape 

 from a lateral view and moderately laterally compressed; averaging 

 1.3 mm. (1.3-1.4) in length; sculpturing on lateral aspect of the long 

 sixth tergum heavy for lower half and then becomes lighter in upper 

 half, disappearing entirely so that dorsal surface is smooth and shiny; 

 ninth tergum short and pointed averaging .12 mm. (.10-. 15) in 

 length and in line with the horizontal axis of the abdomen ; black to dark 

 brown in color. Internal genitalia short; dorsal and ventral valves 

 turn dorsally, anteriorly, at a right angle to horizontal axis so that 

 stylet arch is in an almost vertical plane; height more than half of 

 length; height averaging .82 mm. (.80-. 87) and length 1.2 mm. 

 (1.1-1.3); dorsal valves black and narrow for horizontal length. 

 Propodeum at right angles to the scutellum; wide shallow concavity 

 that is evenly punctate except for three or four large round pits with 

 shiny surfaces along dorsal margin; median furrow, lateral and central 

 carinae may be absent or carinae indicated dorsally by short stubs 

 only. Tegula black. Pronotum narrow; its width less than half 

 its length. Antenna short and stocky; enlarging shghtly distally so 

 that they appear clavate; pedicle and first funicle segment about 

 equal in length viewed from above; first funicle segment slightly 

 longer than wide, rest almost square; three closely fused units in the 

 club ; scape black. Front coxa with a prominent tubercle about mid- 

 way on the anterior outer margin. Wing veins yellow; marginal and 

 postmarginal linear, the marginal longer than the postmarginal, 

 averaging .17 mm. (.15-. 20) in length and the postmarginal averaging 

 .12 mm. 



Male : Black ; exceptions as in the description of the female. Length 

 averages 1.6 mm. (1.3-1.9). Antenna with the first four funicle seg- 

 ments about equal in length, pedicellate, longer than wide and de- 

 pressed medially ; a whorl of long hairs arises from each hump on either 

 side of the depression and extends outward at right angles to the longi- 

 tudinal plane of the segment; fifth funicle segment not pedicellate 

 distally, nor noticeably depressed; its proximal end has longer hairs 

 that appear to arise from a slight eminence and may or may not simu- 



219-931 — 67 4 



