No. 22.] HYMENOPTERA OF CONNECTICUT. 449 



Gonatocerus Nees. 

 G. anthonomi Girault. 



Female : average length 0.85 mm. ; head and thorax pitch- 

 black; abdomen suffused with brown, piceous along the sides 

 and toward apex, its basal segment lighter, front of head with a 

 distinct inverted V-shaped pale mark, reaching from a point on 

 the vertex to the lower inner margin of the eye; eye margins 

 pale ; thorax with an oblique longitudinal pale streak ; legs honey- 

 yellow, except the whole of the middle of the femora, the hind 

 femora, coxae, portions of the basal joint of the trochanters, and 

 almost, if not quite, the whole of the middle and hind tibiae, 

 all of which exceptions are blackish, tips of tarsi darker ; antennae 

 dull reddish brown, and with some black, except the scape and 

 pedicel, which are yellowish, partly tinged with blackish; thorax 

 impunctate, faintly shagreened, about as broad as the abdomen; 

 the latter pointed, the first segment faintly striate and with a 

 round fovea at base ; wings with a purplish hue, venation dusky 

 yellowish; scape as. long as the following four joints combined; 

 pedicel oval, much longer than the succeeding joint, third, fourth 

 and fifth joints shortest, sub-equal, fifth slightly longer. Male: 

 length 0.81 mm.; scape longer than the following joint; other- 

 wise nearly as in the female. 



Presumably bred from the eggs of Anthonomus quadrigibbus 

 in the fruit of Crat&gus. 



trichogrammim:. 



Anterior wings with regular rows of hairs ; submarginal vein 

 reaching the costa, 



Parasitic in the eggs of the several orders of insects. 



Key to Genera. 



Antenna: 3-, 5-, or 8-jointed Trichogramma p. 449 



Antennae 7-jointed, with one ring-joint and a 4-jointed club 



Lathromeris p. 451 



Trichogramma Westwood. 

 T. ceresarum Ashmead. 



Female : length nearly 1 mm. ; mostly reddish yellow ; abdomen 

 and hind femora fuscous, fore and mid femora pale brown, tibiae 

 and tarsi pale, thorax triangular in front ; abdomen wider but not 



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