342 Annals E^itomological Society of America [Vol. XII, 



Polyangaeus Doane. 



Polyangaeus japonicus sp. n. 



Thorax yellow, the praescutum with an indistinct darker median 

 stripe; wings with a heavy brown banded pattern; crossvein r lacking, 

 m present; supernumerary crossveins in cells i?3, Rb, Mi and M; tibiae 

 and tarsi largely white. 



Male — Length, 6.6 mm. ; wing, 8 mm. 



Head small, closely applied to the thorax. Rostrum and palpi 

 dark brown. Antennae short, the flagellar segments crowded, the 

 scape dark brown, the flagellum light brownish yellow, the last segment 

 infuscated. Head dark brownish gray. 



Mesonotum light yellow, the praescutum with' a broad pale brown 

 median stripe that is broadest and most distinct in front, becoming 

 obliterated behind; postnotum brownish. Pleura yellow. Halteres 

 very long and slender, dark brown, the base of the stem yellow. Legs 

 with the coxae and trochanters dull yellow; femora dvl\ yellow, the tips 

 broadly dark brown; tibiae china-white, the tips broadly dark brown; 

 tarsi white, the apical segments more infuscated. Wings subhy aline 

 with a heavy banded pattern of dull yellowish, margined with brownish 

 gray; the costal cell is entirely dark; interrupted crossbands occur at 

 the origin of the sector, along the cord and very diffusely between the 

 cord and the wing-tip; dark spots at the ends of all the longitudinal 

 veins, large and blotch-like at the ends of the anal veins; a row of small 

 dots in cell Cu, behind the abortive anal vein in that cell; two spots 

 in the base of cell 1st A; the apical pattern consists of yellowish seams 

 to the crossveins, these markings broadly margined with brownish 

 gray to produce a somewhat ocellate appearance. Venation: Rs 

 square and spurred at its origin ; r lacking but a strong spur at the angle 

 of i?2+3 at the point where r is located in the genotype, P. maculatus; 

 i^2+3+4 longer than r-m; cell 1st Mi closed, m being located between M^ 

 and Mz; supernumerary crossveins in cells Rz near the tip, R^ at about 

 two-thirds its length, at about midlength of Mi and in cell M about 

 in alignment with the angulated base of the sector. 



Abdomen brown, the segments margined posteriorly with darker 

 brown. 



Habitat: Japan. 



Holotype, &, Saitama, May 31, 1919 (R. Takahashi). 



Polyangaeus japonicus agrees with the genotype, P. macula- 

 tus Doane (Western United States) in most features of its 

 organization. It differs in the lack of the radial crossvein, 

 the closed cell 1st M2 and the presence of an additional super- 

 numerary crossvein in cell Mi. 



