OCR Text |
Show 1895.] HYMENOPTERA OF THE ISLAND OF GRENADA. 771 Wings hyaline, ciliate, the veins brown, the marginal cell closed, the second abscissa of radius very slightly longer than the first, the areolet indicated by a rounded stigma. Abdomen a little longer than the thorax, with a narrow girdle of sparse pubescence at base. d. Length 1 m m . Differs from female only in the antennae; these are 15-jointed, filiform, about 1 | times as long as the body, light brown, the three basal joints whitish ; the first joint of flagellum is about one-half longer than the second, the third and following joints being scarcely longer than the second, or about 2 | times as long as thick. Mount Gay Estate, St. George's (leeward side), and Balthazar (windward side). Described from two male and two female specimens. (12) HEXAPLASTA DOLICHOMERA, sp. n. o* • Length 1*3 m m . Differs from H. unifoveata in its larger size, in having longer, dark brown antennae which are nearly twice as long as the whole insect; the first joint of the flagellum being long, nearly twice as long as the second, the third and following joints being slightly longer than the second, three times, or a little more than three times, as long as thick; the second abscissa of radius is 1| times as long as the first; while the scutellar channels on each side of the cup are striated. Mount Gay Estate (leeward side). Described from one male specimen. (13) HEXAPLASTA INSTABILIS, sp. n. 2 . Length 1*25 to 1*5 m m . Eobust, polished black, the sides of thorax and metathorax usually piceous or brownish, the metapleura always red, the mesopleura sometimes black; antennae, except club which is fuscous or black, and legs brownish yellow. Antennae 13-jointed, the first joint of funicle a little more than twice as long as thick, joints 2-5 only a little longer than thick ; club-joints, except last which is ovate and larger and stouter than the others, only slightly longer than thick. Scutellum closely reticulately punctate ; the cup small, narrowed, with a minute fovea posteriorly. Wings hyaline, ciliate, the veins brown, the marginal cell closed, the second abscissa of radius about one-third longer than the first. Metapleura bounded by a distinct sharp carina behind. Abdomen piceous at base, the pubescent girdle at base nearly obliterated, only slightly indicated at sides or broadly interrupted at middle above. d. Length 1 m m . Antennae 15-jointed, brown; the first joint of the flagellum one-half longer than the second, the third and following three times as long as thick; veins dark brown ; otherwise as in the female. Balthazar (windward side) and St. George's (leeward side). Described from one male and seven female specimens. |