| OCR Text |
Show 1895.] HYMENOPTERA OF THE ISLAND OF GRENADA. 743 but of this number five proved to be new. The others occur in St. Vincent and Cuba. In the family Braconidce some twenty-nine species were taken, representing seven new and twenty-two described species. Of the twenty-two described species, twenty have already been reported from St. Vincent, while two, Macrocentrus delicatus, Cr., and Hor-mius melleus, Ashm., occur in Florida and other parts of the United States, and are now reported for the first time from the West Indies. Macrocentrus delicatus, Cr., is also found in Mexico. The two other families mentioned-the Cynipidce&ndthe Procto-trypidce- were exceedingly rich in species, the vast majority of them being microscopic in size and difficult to study. In the family Cynipidce no less than seventy species were recognized, all belonging to the parasitic subfamily Eucoelince. It is worthy of note that, up to the present time, not a single gall-making species in this family is yet reported from the West Indies,-- the species reported and described by Cresson from Cuba, and supposed to be true gall-makers, being all parasitic forms. Of the seventy species mentioned in this report, eight only were described, and these are from St. Vincent *. All the others are apparently new. These are distributed in eighteen genera, of which five are new. The family Prodotrypidee is represented by seventy-five species distributed in twenty-nine genera, only one genus being new. Of the species twenty-one have been described. Two species, Aphe-lopus albopictus, Ashm., and Ceraphron basalis, Ashm., occur in the United States, while all the others were quite recently described from St. Vincent. The six new genera and one hundred and twenty-eight new species of parasitic Hymenoptera described in this report admirably illustrate the wonderful richness of the West-Indian fauna, and the amount of work yet to be done before sufficient data will have been accumulated to afford a basis for a safe generalization upon the distribution of these insects. Family CYNIPIDJE. Subfamily ECCOELIN^E. G R O N O T O M A , Pdrster. G R O N O T O M A INSULARIS, sp. n. 2 . Length 1*1 m m . Eobust, polished black ; first four or five joints of antennae red : legs reddish yellow, the middle and hind coxae black. Wings hyaline, strongly iridescent, with short ciliae; the venation yellowish, the marginal cell closed, about 1^ times as long as wide, the second abscissa of radius being about 1^ times as long as the second. Head transverse, as wide as the widest part of the thorax, perfectly smooth, impunctate, the occiput not margined; palpi 1 See Journ. Linn. Soc, Zool. xxv. pp. 61-78. |
