PROCEEDINGS OF THE Entomological Society of Washington VOL. 34 MARCH, 1932 No. 3 DESCRIPTIONS OF NEW TRICHOGRAMMATID (HYMENOP-TERA) EGG PARASITES FROM THE WEST INDIES. By Herbert L. Dozier. To date very little has been published concerning the repre-sentatives of the family Trichogrammidae in the West Indies. The present paper describes six new species of these interesting minute egg-parasites and gives a number of valuable distribu-tion and rearing records, accumulated by the writer while Entomologist for the Service Technique de l'Agriculture at Port-au-Prince, Haiti. Triehogramma minutum (Riley). Hatte Lathan, Haiti, Nov. 28, 1930, numbers of the golden yellow strain of this species were reared from eggs of the Cotton Leaf Worm, Alabama argil-laceae; a yellow strain having the vertex and abdomen darker was reared from red bean foliage at Damien, Haiti, March 4, 1931, and from sweet potato foliage at Port-au-Prince, Haiti, Dec. 28, 1929; an almost brown strain was reared in very abundant numbers from eggs of the Larger Canna Leaf-roller, Calpodes ethlius Cramer, on canna at Damien, Haiti, June 1, 1931, and was very effective in stopping the outbreak of this pest. This dark strain either represents an undescribed strain of T. minutum (Riley) or a distinct species. Megaphragma mymaripenne Timberlake. 1924 Timberlake, P. H, Descr. of New Chalcid-Flies from Hawaii and Mexico, Proc. Haw. Ent. Soc, V, no. 3, pp. 412-415, fig. 7. 1931 Pemberton, C. E. An Egg Parasite of Thrips in Hawaii, Proc. Haw. Fnt-Soc, Vii, no 3, pp. 481-482. Port-au-Prince, Haiti, May 11, 1931, the writer reared numerous females of this species from croton foliage infested with a very minute species of pale thrips, Microthrips sp. close to piercei Morgan. The species was originally described from specimens collected by C. E. Pemberton on leaves of an undetermined forest tree in association with an undetermined thrips in 1920 in Hawaii. At the time it was suspected of being a parasite of the eggs of apr ?. m
BioStor
