OCR Text |
Show 760 MR. W. H. ASHMEAD-REPORT ON THE PARASITIC [NOV. 19, little longer than thick; cup of scutellum large, broadly oval, smooth and polished, with a single round fovea on posterior part. Wings hyaline, ciliate, the venation yellowish, the marginal cell open along the fore margin, nearly twice as long as wide, the second abscissa of radius about 1\ times as long as the first and slightly curved outwardly. Abdomen black, with a narrow pubescent girdle at base. The d differs only in having 15-jointed, brown-black antennae, with the two basal joints rufous. All the joints of the flagellum are about equal in length, striated, about 3| times as long as thick ; while the rounded fovea on the cup of scutellum is a little larger. Balthazar and Mount Gay Estate. Described from one male and one female specimen. HEPTAMEROCERA, Ashmead, g. n. (Type, H. robusta.) Antennae in $ 13-jointed, shorter than the body, terminating in an abrupt 7-jointed club. Scutellum closely punctate or rugose, the cup oval or ovate, with a small fovea posteriorly. Front wings with the marginal cell either open or closed, the first abscissa of radius shorter than the second, the cubitus entirely absent. Abdomen with the usual hair-fringe or girdle at base. In having a 7-jointed antennal club, this genus approaches nearest to Rhoptromeris, Forster, but it is readily separated from it by the first abscissa of radius being shorter than the second and by the first joint of the flagellum being longer than the second. From Heptameris, Forster, which also has a 7-jointed club, it is distinguished by the great difference noticeable in the shape of the marginal cell, the sculpture of the scutellum, and by the shape of the scutellar cup. The species placed here may be tabulated as follows :- Table of Species. Females. Marginal cell more or less open along the fore margin Marginal cell completely closed. Abdomen rufous; head and thorax black. Cup of scutellum large, oval; club-joints dusky; legs yellow Abdomen black. Metapleura black. Cup of scutellum very minute, elliptic, with the disk foveated; mesonotum with a large fovea just in front of the scutellum. First funiclar joint minute, obconic, not much longer than thick, joints 2-4 moniliform ; club-joints oblong, fully twice as long as thiok 2. H. bicolor, sp. n. H. singularis, sp. n. |