No. 22] HYMENOPTERA OF CONNECTICUT. 775 



and nearly cylindrical; segments of the club more closely articu- 

 lated to each other than to the funicle or than are the segments 

 of the funicle to each other; club slightly longer than funicle; 

 first two segments about equal in length, their greatest diameter 

 being at their outer ends ; terminal segment elongate, triangular 

 in outline, and longer than either of the other segments, bluntly 

 pointed at tip ; all segments of antenna bearing scattered hairs. 



" Thorax : pronotum dark ; mesoscutum brownish yellow, 

 darker near the anterior edge, mesoscutar parapsida [scapulae] 

 same color or lighter than mesoscutum with a darker spot well 

 forward toward the base of the fore wing; scapula [axillae] dark; 

 mesoscutellum noticeably paler than mesoscutum. Behind the 

 mesoscutellum are two narrow transverse plates dark toward their 

 lateral margins and light near the middle, the posterior plate 

 with a spiracle near each lateral margin. Marginal and sub- 

 marginal veins of fore wing nearly equal in length ; end of stig- 

 mal vein obscurel)^ pointed, not reaching wing margin, its upper 

 side slightly emarginated, its anal margin broadly rounded; a 

 broad dusky band crosses the fore wing below the marginal vein ; 

 hind wing lanceolate; legs pale yellow except the coxae, femora, 

 and basal halves of tibiae, these being dark, the coxa being the 

 darkest portion of each leg, those of the hind legs being the 

 darkest; fore legs as a whole the lightest and the hind legs the 

 darkest; trochanters nearly hyaline. 



" Abdomen : short, broad, nearly quadrangular in outline ; 

 quite dark with faint transverse lighter bands and a yellowish 

 brown area near the genitalia: with spines directed backward 

 evident on the sides (above and below also?). 



" Male: length, 0.56 mm.; expanse, 1.54 mm.; greatest width 

 of fore wings, 0.26 mm. Living and mounted specimens appear 

 the same as females, except that they are smaller, and the meso- 

 scutellum is not as light in color. The antenna differs in that 

 the first funicle segment is as long as the second, and its diameter 

 at its distal end is greater than the diameter of either of the 

 other two funicle segments. Its base is rounded and stalked, and it 

 does not give the effect of a bead as does the corresponding seg- 

 ment in the female antenna. The articulation between the second 

 and third segments of the club is not as evident as between the 

 first and second segments, while in the female both articulations 



