182 INSECUTOR INSCITI^ MENSTRUUS 



interrupted near three-fourths the length of vein Cu; a con- 

 spicuous seam along the whole length of Rs; a brown cloud 

 extending from the tip of Sc across cells ist 7?^ and R^ into 

 cell Rr, ; narrow seams along cord and outer end of cell ist Mo ; 

 stigma large, U-shaped ; rows of circular brown spots on the 

 veins beyond the cord ; wing-tip in cells 2nd R.^, 2nd M, and 

 Mg darkened; conspicuous seams on outer ends of anal veins; 

 narrow but conspicuous marginal seams in ends of all the pos- 

 terior and anal cells ; veins pale, dark brown in the infuscated 

 areas. Venation : Sc very long, ending far beyond the end of 

 Rs, Sc, at tip of Sc-^ ; Rs extremely arcuated ; r more than twice 

 its length from the tip of R^ which is arcuated at this point 

 as in Teucholabis; cell ist M.^ very long, widened distally ; basal 

 deflection of Cm^ about two-fifths its length beyond the fork 

 of M. 



Abdomen pale brovv^nish yellow. In the female, the base of 

 the abdomen is tinted with green. Ovipositor with the tergal 

 valves bidentate at tips. 



Holotype, male, Mount Ibuki, June 4. 1921 (K. Takeuchi). 



AUotopoiypc, female. 



Limnobia amafri'x is a beautiful fly that is very isolated in 

 its relationships. 



Ormosia confluenta, new species. 



Female. — Length about 3-3.3 mm. ; wing, 3.6-4.3 mm. 



Rostrum obscure yellow, the palpi brown. Antennae with 

 the scapal segments brownish yellow, the flagellar segments 

 pale brownish testaceous to brown. Head obscure brownish 

 yellow, the center of the vertex sometimes infuscated. 



Pronotal scutum light brown, the dorso-lateral angles some- 

 times darkened ; scutellum yellow. Mesonotum shiny fulvous 

 brown, unmarked. Pleura 3^ellow. Halteres yellow, the knobs 

 faintly darkened. Legs with the coxae pale, sparsely pruinose : 

 trochanters and femora obscure yellow ; tibiae yellowish brown : 

 tarsi dark brown. Wings yellowish fulvous, veins a little darker. 

 Venation : Sc-^ ending beyond the fork of Rs, Sc, atrophied : 



