. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES: PARASITIC HYMENOPTERA. 91 Alysia petrina, sp. nov. (Fig. 73.) Female. Length 5 mm. Ovipositor about 2 mm. Black or piceous, the abdomen, except apex reddish or brownish. Anterior legs reddish; middle and posterior pairs piceous or black. Specimen partly seen m ventral view, the head behind; the large, externally arcuate mandible on one side showing very distinctly. Body behind the scutellum showing the dorsal view (i. e. the specimen split off to the dorsal wall). Metathorax distinctly rugose-re


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES: PARASITIC HYMENOPTERA. 91 Alysia petrina, sp. nov. (Fig. 73.) Female. Length 5 mm. Ovipositor about 2 mm. Black or piceous, the abdomen, except apex reddish or brownish. Anterior legs reddish; middle and posterior pairs piceous or black. Specimen partly seen m ventral view, the head behind; the large, externally arcuate mandible on one side showing very distinctly. Body behind the scutellum showing the dorsal view (i. e. the specimen split off to the dorsal wall). Metathorax distinctly rugose-reticulate. Abdomen as long as the head and thorax together; subpetiolate; first seg- ment gradually widened from the base to the apex which is a little less than one-half as wide as long. Second segment as long as the first, but much wider than long; follow- ing' together as long as the first two; apex obtusely pointed. Ovi- positor preserved to a distance nearly equal to the length of the abdomen and possibly still longer. Legs moderately slender. Wings long and rather narrow, stigma and veins fus- cous, the former short and broad, subtriangular. Radial cell long, almost attaining the wing tip, the first section of the radius less than one-half as long as the second. Three cubital cells, the second short, its. inner side one-half longer than its upper. Recurrent nervure interstitial with the transverse cubitus; submedian cell as long as the median; discoidal nervure broken below the Fig. 73.— Alysia petrina, sp. nov. Type. Type.—No. 2289 Scudder Coll.). M. C. Z., Florissant, Col. (No. 8812, S. H. Alysia exigua, sp. nov. (Fig. 74.) Length 5 mm. Yellow or light colored, the tips of the mandibles, antennae, tarsi, and tips of posterior tibiae, black or blackish. The head and entire body are seen in ventral aspect. The mandibles are very large and prominent. Antelmae slender, with more than twenty joints, their tips not being shown in the specimen; the joints near the


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Keywords: ., bookauthorha, bookcentury1900, bookdecade1910, booksubjectzoology