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, 



