OF WASHINGTON. 157 



in) Habrocytus phycidis, n. sp. 



9. Length 3 mm. Head and thorax bronzed-green, confluently punc 

 tate; scape, tegulse, tips of femora and all tibiae and tarsi, except the last 

 joint, honey-yellow; abdomen conically produced, blue, with aeneous 

 tingings; wings hyaline, the veins light brown. 



Head about 3? times as wide as thick antero-posteriorly, the frons 

 slightly impressed ; ocelli subtriangularlj' arranged, red: mandibles ru 

 fous, the right 3-dentate ; flagellum brown-black, pubescent, very slightly 

 thickened towards tip, the first joint a little less than three times as long 

 as thick, longer than the second, the second about twice as long as the 

 pedicel, the third and following joints very gradually, almost impercepti 

 bly shortening. Pronotum not short, as long at the middle as at the 

 angles, the anterior edge rounded, not acute or margined ; mesonotum 

 about one-half wider at base than long at the middle, with the parapsidal 

 furrows distinct anteriorly and extending back as far as the middle of the 

 mesonotum ; axillae as far from each other as their width at base ; scutel- 

 lum proper, with the transverse suture before tip nearly obsolete ; meta- 

 thorax not short, produced at apex into a subglobose neck, closely 

 punctate, the lateral folds distinct at base, the median carina only 

 vaguely defined at base, the spiracles large, oblong-oval. Front wings 

 with the marginal and postmarginal veins equal in length, or nearly so, 

 while the stigmal vein, with its small knob, is about four-fifths the length 

 of the marginal. Abdomen conically produced, flattened above, boat- 

 shaped beneath, and about ii times as long as the head and thorax united, 

 the second segment, with a large deep fovea at base, (just beneath the neck 

 of the metathorax, and not quite as long as segments 3-5 united,) segment 

 3, except the short petiole, the shortest segment, the following segments 

 gradually increasing in length, the last conical; segments 4-8, under a 

 very high power lens, exhibit delicate, wavy, microscopic lines. 



Hab. Canobie Lake, N. H.(Bred from larva of Phycis rubrifa&ciella*} 



(14) Elachistus cidariae, n. sp. 



9- Length i.S mm. Black, shining, but with the pronotum, mesono 

 tum, and scutellum microscopically reticulate. Head polished, the 

 frons concave; metanotum polished, with a median carina and broad lat 

 eral sulci; antennae light brown, or brownish-yellow, if darker above, 

 paler beneath, the scape paler; legs, except coxae and femora, pale yel 

 lowish, coxae black, the femora, except tips, embrowned, the hind femora 

 almost black. Wings hyaline, the veins pale ; the marginal vein is fully 

 as long as the subcostal vein, or more than three times as long as the 

 stigmal; the postmarginal twice as long as the stigmal. Abdomen de 

 pressed, rotund, much shorter, but a little wider than the thorax, aeneous- 

 black, with the second dorsal segment (the first after the petiole) mostly 

 pale. 



Hab. Cambridge, Mass. (Bred from larva of Cidaria diversilineata.} 



