48 PROC. ENT. SOC. WASH., VOL. 35, NO. 4, APR., 1933 greatest width 0.147 mm., length of setae at anterior angles 46/u, of outer setae at posterior angles 74ai, of inner setie at posterior angles 35m; pterothorax, width 0.187 mm.; fore wings, length 0.720 mm., width at middle 0.033 mm., width near base 0.044 mm. Antennal segments 123456789 Length (/x) 18 36 70 47 42 33 11 13 11 Width (m) 21 25 18 17 17 14 8 5 4 Total length of antenna 0.281 mm. Described from 18 females taken "on the leaves of young banana plants near Almirante, Panama," May, 1932, by Mr. John R. Johnston, who has supplied the following note: "You may be quite correct in considering that this species is probably a predacious form, as I was unable to discovery any injury what-ever on the banana plant that I could attribute to it. This species is not uncommon on the young leaves of banana, but was never abundant." Explanation of Plate. (The drawings were made with the aid of a camera lucida by Miss Helen Rearwin.) Rhabdothrips albus, gen. et sp. nov. Fig. 1. Head and prothorax, 9 , paratype; bristles omitted from all appendages. Fig. 2. Distal portion of seta of tergite 9, 9 , paratype. Fig. 3. Right fore wing, 9 paratype; microtrichia omitted. Fig. 4. Segments 8-10 of abdomen, 9 , paratype. Fig. 5. Right antenna and portion of head; 9 , holotype. FIVE NEW HYMENOPTEROUS PARASITES OF THE ORIENTAL FRUIT MOTH. By C. F. W. MuESEBECK., Bureau of Entomology. This paper contains descriptions of four new Braconidae from Japan and one new species of Bethylidae from Australia, all recorded by investigators of the Bureau of Entomology as parasites of Grapholitha molesta Busck. SUPERFAMILY ICHNEUMONOIDEA. FAMILY BRACONIDAE. Bassus diversus, new species. Differs from all other species of the genus known to me in combining an unusually thin head, sharply impressed and
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