INSECUTOR INSCITI^ MENSTRUUS 181 



praescutum. Pleura yellow ; linear brown marks on pro- and 

 mes-episterna. Legs with the coxse yellow, outer face of fore' 

 coxa conspicuously dark brown ; femora yellow with the tips 

 conspicuously darkened, the coloration most intense as a nar- 

 row dark brown subterminal ring; tips of tibiae dark brown. 

 Wings as in L. strigivena; stigma very elongate. 



Abdomen with tergites brownish fawn color, trilineate with 

 dark brown ; median stripe interrupted at the posterior margin 

 of the segments and becoming obsolete behind. 



Habitat. — Japan. 



Holotype, male, Koto sho Islands, Formosa, March 15- 

 April 10, 1930 (T. Okuni). 



Genus LIMNOPHILA Macquart 



Limnophila (Phylidorea) sapporensis, new species. 



Male. — Length, 8.5 mm, ; wing, 8.7 mm. 



Belongs to the ferruginea group ; allied to L. melawommata 

 Alexander. 



Rostrum and palpi dark brown. Antennae with the first 

 segment dark brown, sparsely pruinose ; remainder of an- 

 tennae yellow, the terminal segments a little darkened. Head 

 gray. 



Pronotum brown. Mesonotum ferruginous, the praescutum 

 with a capillary dark brown median stripe, broadest in front, 

 gradually narrowed posteriorly, becoming obsolete before the 

 suture; posterior margin of scutellum margined with brown. 

 Pleura orange yellow. Halteres yellow, the knobs a little 

 darker. Legs with the coxae and trochanters yellow ; femora 

 dark brown, the bases obscure yellow, broadest on the pos- 

 terior femora where they include about the basal third ; re- 

 mainder of legs brown. Wings with a faint yellowish tinge, 

 more saturated in the costal and subcostal cells ; stigma and 

 wing-apex faintly darkened. Venation: As in the ferruginea 

 group ; cell ist M^ small, subrectangular ; cell M-^ a little longer 

 than its petiole. 



Abdomen brownish yellow, the seventh to ninth segments 

 dark brown, including the hypopygium. 



