18 PROCEEDINGS OF THE NATIONAL MUSEUM vol.79 



the genera Crwnaeciella^ Leyidostoina^ and Mellomyia; basal segment 

 clothed with long hairs, in its apical portion especially. Second 

 joint of the inferior appendages in its shape similar to that of 

 Dlnarthrum^ but more elongated, almost equaling half the length of 

 the first joint. Distal portion of the penis directed downward, as 

 in Dinarthrmn; titillators very slender. Length of body, 4 mm. 

 Female: Unknown. 



Remarks. — In the shape of its anterior wings the present species 

 is similar to the genus Dinarthr-um., but differs from it in a much 

 deeper groove, concealing a portion of M and of Cu and extending 

 up to the anastomosis. The general conformation of this groove 

 resembles also that in the genus Mellomyia Ulmer (China), but in 

 the latter genus this groove appears to be still deeper and conceals 

 also Rs, up to the anastomosis; the arrangement of the branches of 

 M and of Cu and Ai in the genus Mellomyia is also somewhat differ- 

 ent. The male genitalia in the genus MelloTnyia are much more 

 specialized than in our genus, though formed on a similar plan 

 (except the absence of titillators). Eodinarthrum 'pv^iUuin is doubt- 

 less related to the genus Dinarthrinn McLachlan, but these relations 

 are not close; in the structure of male genitalia, as well as in the 

 wing venation, the genus Dinarthrum is more primitive than the 

 genus Eodinarthrum. 



The genus Mellomyia is also somewhat allied to EodinarthruTn., but 

 is much more specialized; its relations to the last-named genus are 

 more distant. 



Type.—MdX^, U.S.N.M. No. 43158, from Yellow Dragon Temple, 

 near Songpan (11,000 to 14,000 feet), July 17-20, 1924. 



Specimens examined. — One, the type. 



Genus GOERA Leach 



GOERA DIGITATA. new species 



Plate 4, Figures 52, 53 



Desanption. — Head and thorax rufous-yellow, clothed with some- 

 what thickened rufous-yellowish hairs. Basal joint of antennae long, 

 the remaining ones very short, yellowish; palpi clothed with ru- 

 fous-yellow hairs. Legs yellowish. Anterior wings clothed with 

 short golden-yellowish hairs along the veins mixed with brownish 

 ones, on the costa, especially; third apical fork almost reaching the 

 level of the discoidal cell; second fork impinging not far on it. 

 Male: Sixth sternite with a transverse row of nine thick spines, 

 the median being the longest. Ninth sternite with a very long 

 process, triangular in its basal, narrow in its distal portion. Pre- 

 anal appendages long, slender, hairy, straight. Basal joint of the 



