C. W. Johnson.
A New Cecidomyiid of the Genus Lestodiplosis.
Psyche 35(4):216, 1928.

This article at Hindawi Publishing: https://doi.org/10.1155/1928/97523
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Psyche
A NEW CECIDOMYIID OF THE GENUS LESTODIPLOSIS. BY CHARLES W. JOHNSON,
Boston Society of Natural History.
The following species was received from Mr. R. L. Taylor, who, in making a biological study of the White-pine weevil (Pissodea strobi Peck.), has secured many interesting species of insects that are either parasitic, predaceous, commensal or other- wise. The larvae of the qenus Lestodiplosis according to Kieffer are zoophagous, subsisting upon the larvae of Cecidomyiids, My- cetophilids, and Xylophagids. Dr. E. P. Felt says1:-"This record of zoophagous habits is confirmed by the rearing of Amer- ican species, since members of this genus were obtained from a wide variety of galls and the larvae evidently subsisted upon ltonididp, other small insects and acarids." Lestodiplosis iridipennis sp. n.
Head black, antennae white, joints of uniform length, the enlarged portions narrowly banded with black. Thorax yellow- ish, when viewed from the front showing three broad brown stripes extending to the base of the wings, scutellum yellow, metanotum black, abdomen yellow with yellow hairs. Legs white, tibiae with the base, middle and tip banded with black, tarsi with the base and tip of the first and second joints black. The base of the third joint is also narrowly black. Wings with yellow and black- ish hairs, the latter arranged in spots, these hairs are highly iri- descent when viewed at certain angles in a bright light, giving the wing a golden yellow color, ornamented by six large, bright, purple spots, r~gularly placed, the two anterior ones between the costa and radius, two in the middle of the wing, and the two posterior ones extending on both sides of the cubitus, the outer end of the cubitus is also slightly purplish. Length 1.5 mm.
One male, July 10, 1928, from material taken at Oneonta, X. Y. Type in the Museum of Comparative Zoology. This beautiful little midge is so pronounced that I trust the above description will suffice. It would run to L. jlorida in the table by Felt, but the antennae do not agree. In the description of L. florida the color of the thorax and wings are very different. 'New York State Museum Bull., Nos. 231-232, p. 129, 1921. Pu&e 35:216 I1'128). http //psyche enkliib ore/35/35.216 him1



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