No. 22.] HYMENOPTERA OF CONNECTICUT. 479 



except claws, honey-yellow ; mid cxae metallic green, mid femora 

 mostly black with both ends yellowish, mid tibiae honey-yellow 

 with a longitudinal dorsal streak, mid tarsi, except apical joint, 

 honey-yellow ; hind legs with their coxae, femora and tibiae shining 

 black, with the distal end of femora and both ends of tibiae honey- 

 yellow, their tarsi honey-yellow except the apical joint, which is 

 black ; veins honey-yellow ; abdomen very delicately shagreened. 

 Male : antennae more clavate ; nearly devoid of white hairs except 

 at tip of mesonotum and at tip of abdomen. 



Bred from Isosoma tritici. Also reared from Isosoma in- 

 festing timothy grass at the Experiment Station in New Haven. 

 M. (Phaenacra) chalcidiphagus (Walsh). Semiotellus chal- 

 cidiphagus Walsh. 



Female : length 2.25-3 mm. ; mostly blue-black or dark indigo- 

 blue ; head finely and confidently punctate and scarcely polished ; 

 antennae pale rufous, darker toward base, flagel not pubescent, 

 the joints of the latter indistinctly separated; thorax sculptured 

 like the head ; legs black, with the tibiae and tarsi, except tips of 

 the latter, pale rufous, tibiae occasionally basally clouded with 

 black externally; wings hyaline, front wings with a dark smoky 

 area extending backward from the subcostal vein where 

 that vein first touches the costa to the tip of the branch, but not 

 quite to the hind edge of the wing; veins brown, much paler 

 toward the base of the wing; abdomen almost sessile, depressed, 

 flattened above, rounded below, polished, with a few short whitish 

 hairs toward the tip, in color less blue than head and thorax, 

 and with cupreous reflections beneath. Male: differs from the 

 female chiefly as follows: flagellar joint pubescent and distinctly 

 separated, first and second joints of antennae rufous, third to 

 ninth joints dark brown; abdomen subpetiolate, narrower, its tip 

 acute, cupreous tinge stronger ; front wings without a dark smoky 

 cloud; length 2-2.5 mm ' 



Bred from barley galls. 



M. (Micromelus) destructor Say M. (Boeotomus) destruc- 

 tor. 



Black, with bluish green metallic reflections ; legs black banded 

 with yellow; female a little longer than the male, and otherwise 

 different as follows: antennae somewhat clavate, the funicular 

 joints increasing slightly in width and decreasing slightly in 



