108 f^'^y- 



TACHINA, Mgn. 



A number o£ incongruous speciea have been placed togetber in 

 this genus, having the following characters in common, viz., eyes 

 nude ; antennas with the second joint elongated, and at least half the 

 length of the third ; facialia bare, or only ciliated for some distance 

 with fine hairs ; the first posterior wing cell partly open at the end. 

 The typical species always have the fourth longitudinal vein bent at a 

 sharp angle, and furnished with a true or false cubital appendix ; the 

 eyes of the males much more approximated than those of the female ; 

 the fronto-orbital setae in an elongated series ; the facial cilise some- 

 what extended ; and the middle abdominal segments without discal 

 setse. Many other species want these characters, and some closely 

 resemble those in the genus Masicera, with the exception of having 

 shorter antennae. Under these circumstances I think it better to 

 subdivide the genus or group into several sub-genera, retaining under 

 the name of TacJiina those possessing the typical features which I 

 have mentioned. 



Sub-gen. I.— TACHINA, Mgn. 



EutaeJiina, Br. & v. Berg. 



Sub-gen. ch. — Frontal space distinctly narrower in the male than 

 female ; facial angle slightly oblique ; fronto-orbital bristles extending 

 nearly half way down the face ; facialia ciliated with fine hairs for 

 about half way up ; arista with both basal joints short ; abdomen 

 without discal setae on the 2nd segment ; wings with the fourth lon- 

 gitudinal vein bent at a sharp angle, and having a cubital appendix ; 

 apical cross vein terminating at some distance before the apex of 

 the wing. 



1. — T. lARVAETJM, L. 

 2. — T. NOCTUAEtrM, Rnd. 

 3. — T. LATIFRONS. End. 

 4. — T. EETJCAETJM, End. 



Sub-gen. II.— CH^TOTACHINA, Br. & v. Berg. 



Sub-gen. ch. — The chief point of difference between this and 

 Tachina is the presence of discal setae upon the second abdominal 

 segment ; the facial angle is also more oblique ; the facialia less 

 ciliated, and the second joint of the arista a little prolonged. 



1. — C. EtrsTicA, Fin. 



2. — C. NIGRICANS, Egger. 



