from the Philippine Islands. 199 



know it. Calohata is taken in the widest sense, including Taeni- 

 aptera and Grammicoinyia, which I have characterised above '). 



I. Antennal arista dorsal 



(inserted near the base of the third joint). 

 A. Fore coxae inserted close ' by the two other pairs, but 

 very far from the head, the thorax being conspicuously 

 developed in front of them Nothybiis Kond. 



AA. Fore coxae inserted near the head, and at a more or 

 less considerable distance from the two other pairs, 

 a. The two hind pairs of femora without minute spines on 

 the underside, near the tip. 

 No crossvein between the second basal and the discal 

 cells; a distinct sterno-pleural bristle 



Micropesa Meig. 

 A crossvein between the second basal and the discal 

 cells; no distinct sterno- pleural bristle; it is re- 

 placed by more or less numerous hairs on the 

 pleura, above the middle coxae 



Calohata Meig. 

 aa. The two hind pairs of femora are beset, on the under- 

 side, towards the tip, with a series of a very minute 

 spines. 

 Upper portion of the metanotum in the shape of a 



transverse swelling . . . Euryhata 0. S. 

 Upper portion of the metanotum in the shape of a 

 conical projection 

 Head of the male with an enormous lateral develop- 

 ment (Achias-like) . . Anaeropsis Bigot. 

 Head of the male of an ordinary shape 



Nestima 0. S.Enum. 



') Professor Rondani's genera Mimegralla, Grallopoda, fJrallo- 

 myia, Orallipeza (Nuovi Ann. Sc. Nat. Bologna 1850; Osservazioni 

 etc. pag. 16 — 19) were established for the most part in the absence 

 of any specimens, merely upon comparison of Macquarts defective 

 figures of the venation. Thus the genus GralUpeza is established for 

 Calobata unimaculata Macq. Suppl. I. 215 (S. Amer.), solely because 

 in the figure of the wing (1. c. Tab. XIX, f. 4) the crossvein closing 

 the second posterior cell is omitted, although the absence of this cross- 

 vein is not mentioned in the description, and very probably is only 

 accidental. I do not think that genera established in that way can be 

 taken into consideration. The wingless genus Calycopteryx Eaton, 

 Transit of Venus Exp. Zool. Tab. XIV, belongs near Calobata. 



