PROC. ENT. SOC. WASH., VOL. 21, NO. 7, OCT., IQIQ 173 which might indicate the position of another seta. The anterior and middle femora bear setigerous punctures as specified by Dr. Roeschke for the subgenus Brennus, but examination shows these punctures present and strong in relictus and regularis while they are absent in some Brennus, for example marginatus, fulleri, fallax and closely allied forms. With this note, I leave the new species in proximity to relictus and regularis, where it would naturally be placed by its facies. It recalls most closely ( . regularis Lee., but is easily distinguished by the much greater relative length of the head, prothorax and elytra, as well as by its longer and more slender legs and antennae. In a female of regularis the prothorax is at least one-fifth wider than long, much more strongly rounded in front of the point of greatest width and more rapidly narrowed behind than in the corresponding sex of mannii. In a male of relictus the combined length of antennal joints 2, 3, 4 and 5 is 4.3 mm., while in the type of mannii they measure 5.3 mm. Type, a male in the United States National Museum. Of the three paratypes, one male is deposited with the type while two females remain in the collection of W. M. Mann. Locality, Wawawai, Wash., March 20, 27 and 28, W. M.Mann; and May 14, C. V. Piper. Messrs. Schwarz and Barber have kindly afforded aid in ad-vice and in use of the facilities of the National Museum while the very characteristic figure is from a drawing made by my friend, Dr. Adam Boving. Three of the specimens were loaned me by the collector, Dr. W. M. Mann, after whom the species is named. NOTES ON SOME JAPANESE APHIDIDAE. BY RYOICHI TAKAHASHI, Forest Experiment Station, Meguro, Tokio. Myzocallis zelkowae, new species. H 'inged viviparous female. Color: General color pale yellow, mesothorax yellow. Eyes pale green. Antennae pale yellow, apices of the third and the following two joints and base of the spur black. Wings hyaline, stigma yellow, veins pale brown. Each abdominal segment with a pair of small, round, brown spots. Legs, corni-cles and cauda pale yellow. Morphology: Body rather narrow, without hairs. Antennae slender, not on frontal tubercles, the relative length of the third and the following joints is as follows: 111-33, IV-17, V-17, VI-17(10+7); sensoria on the third joint transversely narrow, twenty-five in number, the fourth joint wanting sensoria. Rostrum reaching the second coxae. Wings narrow,
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