1907.] Records of the I ndian Museum. 87 



Tabic of species. 



Posterior femora normal, not thickened. 

 I^egs without black markings. 



Abdomen luteous, with dorsal 



darker spots . . Long. 4 mm.' flavipes Dol. 



Abdomen cinereous black, 

 testaceous at sides and on 

 posterior borders each seg- 

 ment . . Long. 5^ — 6 mm. inamoena Wlk. 

 Legs with black markings. 



Abdomen uniformly blackish- 

 brown . . Long. 3^ mm. vittata Dol. 

 Abdomen black with yellow 



testaceous marks. . Long. 10 mm. calopodata Big. 

 Posterior femora incrassated Long. 6 — 8 mm. hybotoides Wlk. 



X. flavipes Dol., 1858. 

 (Subula) Nat. Tijd. Ned. Ind., xvii, 85. 



Amboina. Closely allied to inamoena Wlk., for which Osten 

 Sacken would have taken it, except for the brown antennae of the 

 latter. Having seen neither species, it appears to me that the 

 difference in size and abdominal markings (though these latter are 

 not so real as would appear on a first reading) would be a better 

 means of separation. 



Van der Wulp reports 'b $ $ from New Guinea. 



X. inamoena Wlk., i860. 



{Solva) Pr. Linn, So., iv, 98. 



5 Java, Celebes. Osten Sacken records two 2 5 from 

 Kandari (Celebes), taken in April 1874. 



X. vittata Dol., 1858. 

 Nat. Tijd. Ned. Ind., xvii, 86. 

 'b Amboina. i 'b . April. 



X. calopodata Big., 1879. 

 Ann. So. Ent. Fr. (1879), I95- 

 5 Ternate. Type in the Bigot Collection — now in the posses- 

 sion of Mr. Verrall, the English dipterologist. 



X. hybotoides Wlk., 1862. 



{Solva) Pr. Linn. So., vi, 5. 



h 2 Gilolo. The type of this species is said to be in the 

 British Museum, but Osten Sacken did not find it there. 



i All lengths given in this paper are in millimetres. 



