Mr. F. W. Edwards on Mycetophilid Synonymy. 5§ 



III. — Some Mycetopldlid Synonymy (Diptera). 



By F. YV. Edwakds. 



(Published by permission of the Trustees of the British Museum.) 



The synonymy given in the following notes has been deter- 

 mined daring a recent examination of the exotic MYCETO- 

 philidje in the British Museum, particularly the species 

 described from the Seychelles Islands by Enderlein (Trans. 

 Liun. Soc, Zool. ser. 2, vol. 11, 1910, pp. 59-81). 



Of Enderlein's species referred to, Scottetla argenteo- 

 squamosa is the species previously described by Meijere from 

 Java as Allactoneura cincta. As Brunetti has pointed out 

 (Fauna Brit. Ind., Nematocera, p. 88, 1912), de Meijere, in 

 his figure and description, has accidentally omitted any 

 reference to the small cross-vein which probably represents 

 the vein R2+.3, the presence of which indicates, as Johannsen 

 Las suggested, that this genus belongs to the SciopKilince. 

 The British Museum possesses undoubted specimens of 

 A. cincta from Ceylon, and these differ in no way from the 

 Seychelles specimens. The genus Allactoneura is a re- 

 markably isolated one ; it will include, besides the type 

 species, Scottella formosana } End. (Trans. Linn. Soc. vol. xiv. 

 {). 63, 1910), and Mycetophila obscurata, Walk. (Proc. Linn. 

 Soc. vol. viii. p. 130, 18G5). The former is distinguishable 

 by the yellow base to the hind femora; the latter has black 

 femora, but has the costal border instead of the apex of the 

 wing darkened. Two specimens in the British Museum from 

 Queensland have wings resembling A. obscurata, but have 

 the base of the hind femora yellow ; they may be A. formo- 

 sana, the wings of which Enderlein does not describe. 



Aphanizophleps, End., would seem to be indistinguishable 

 from Manota, Will. 



Phronia jlabellipennis, End., P. silhouettensis, End., 

 P. areolata, End., and P. snbvenosa, End., are in reality all 

 species of Exechia. The very different structure of the 

 ovipositor shows that P. snbvenosa, v sly. tricincta, is a distinct 

 species ; it also belongs to Exechia. Macrobrachius brevi- 

 furcatus, though having the cubital fork rather shorter than 

 usual, is a distinct Phronia. 



Mycetophila seychellenais, End., collaris, End., and luridi- 

 ceps, End., all belong to the genus Delopsis, Skuse. This 

 transference renders invalid Brunetti's Delopsis collaris 

 (Fauna Brit. Ind. p. 119, 1912), and I propose to rename 

 this species Delopsis bkunettii, nom. nov. I), brunetiii 



