166 ENTOMOLOGICAL NEWS [June, '22 A New Gall Midge on Rushes (Dipt., Cecidomyiidae). By E. P. FELT, Albany, New York. Very little is known of the host relations existing between gall midges and rushes, though the writer found a midge larva in the deformed fruit of a rush some years ago, but was unable to obtain the adult. The record given below is the first Amer-ican species reared from Jinicits. It is interesting to note that Houard in his monograph on The Plant Galls of Europe fails to list even one species from the Juncaceae. He records a number of species as having been reared from the Cyperaceae and in our tabulation of American species, 1 it will be noted that several species (4) have been obtained from plants in this family, while 33 have been reared from the grasses, Gramineae. The fauna of the last named is by no means thoroughly worked up and the probabilities are that careful collecting and rearing would result in material additions to our sedge-inhabiting forms and very likely some increase in the number of species occur-ring in rushes. Procystiphora junci n. sp. A series of these interesting midges was forwarded by Mr. W. H. Larrimer. West Lafayette, Indiana, accompanied by the statement that they resemble somewhat the Hessian Fly, as to appearance, the effect on the host plant and the two genera-tions annually occurring at about the same time as in the case of this wheat pest. The specimens were labeled, "reared from Jnncits dudlcyi, Centralia, 111., October 6, 1921, W. 1'.. Cart-wright, Collector, Centralia, No. 2111." In spite of the general resemblance of these midges to the Hessian Fly, there is a striking chitinization and infuscation of the basal segments of the ovipositor, likewise apparent in the type of the genus, namely P. coloradcnsis Felt. The above food habit record tends to confirm the opinion of Prof. Cock-erell to the effect that the host plant of the type of this genus is Carc.r. It would not be surprising if both species had a somewhat similar effect upon the host plant. $. Length 2 mm. Antennae (possibly of this sex, though not cer-1 1918, N. Y. State Mus. Bui., 200, p. 216.
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