258 Annals Entomological Society of America [Vol. XIII, 



the origin of Rs and another at the fork of Cu; veins dark brown, veins 

 C and Sc yellowish. Venation: Sc rather short, ending just beyond 

 the origin of Rs; Rs long, arcuated; R3 a little shorter than r-m; R2+3 

 shorter than R3; inner ends of cells R3, R^ and 1st M2 in alignment; 

 cell 1st M2 open by the atrophy of the outer deflection of M3; cell £nd 

 M2 longer than its petiole; basal deflection of Cui more than its own 

 length before the fork of M. 



Abdomen dark brownish black, the tergites narrowly ringed caudally 

 with light yellow, the lateral margins more broadly but obscurely 

 yellow. Ovipositor with the tergal valves long and slender, gently 

 upcurved. 



Habitat: Formosa. Holotype, 9, Shishito, May 26, 1917 

 (T. Shiraki) No. 1346. Paratopotype, 9 • 



Gnophomyia Osten Sacken. 

 Gnophomyia (Dasymallomyia) signata (Brunetti). 



1911. Dasymallomyia signata Brunetti; Rec. Indian Mus., vol. 6, p. 304. 



One female, Funkiko, Formosa, April 25, 1917 (T. Shiraki) 

 No. 1329. It is with deference to the views of Brunetti and 

 Edwards that the name Dasymallomyia is here retained as a 

 subgenus. In the opinion of the writer, the group rests on a 

 very slim basis. 



Limnophila Macquart. 

 Limnophila (Dicranophragma) formosa sp. n. 



Close to L. pulchripennis; wings with a brown cross-banded pattern, 

 including seven costal blotches, the third and fourth united into a 

 V-shaped marking that continues caudad along the cord; a seam on 

 r that continues to vein Rz. 



Male — Length 4.8-5 mm. ; wing, 6.3 mm. 



Closely related to L. pulchripennis (Brunetti) of India (Fauna 

 British India, Diptera Nematocera, pp. 524, 525; 1912), but differing 

 in the details of coloration. 



Rostrum and palpi brown. Antennal scape brown; flagellum light 

 yellow, only the distal segments more testaceous. Head gary, yellowish 

 pollinose. 



Mesonotal praescutum pale, heavily yellowish pollinose, the 

 remainder of the mesonotum more brownish. Pleura and sternum 

 brown, light gray pruinose. Halteres yellow. Legs with the coxae 

 brown; trochanters obscure yellow; remainder of the legs yellow, the 

 terminal tarsal segments brown. Wings yellowish subhyaline, with a 

 cross-banded brown pattern; the more conspicuous markings along 

 costa are as follows: A broad stripe near the wing-base, attaining 

 vein Cu; a similar stripe at the origin of Rs, reaching M; a V-shaped 

 mark, the proximal arm at Sd, the distal arm beyond the tip of R\ con- 



