378 C R. Osten Sacken: On Prof. Brauers paper: 



As a PostScript I will add a remark concerning a passage not in. 

 Dr. B.'s Notacantha , but in bis paper on tbe venation of tbe diptera 

 (vergl. Untersucb. d. Flügelgeäders etc.) contained in tbe same fascicle. 



Page 40, at bottom, it is said: ,,Lampromyia Macq. gebort durcb 

 ibre zwei Haftlappen und das Geäder wohl bierber zu den Asiliden 

 und nicbt zu den Leptiden, und zwar in die näcbste Verwandtscbaft 

 zu Leptynoma sericea Westw. (Africa), Trans. Ent. Soc. Lond 1876." 

 This inference is again a little too basty. Soon after tbe appearance 

 of Prof. Westwood's paper, be bad tbe kiudness to inform me, upon 

 my inquiry, tbat Leptynoma bas tbree pnlvilli, and tbat, for tbis 

 reason, it would be better placed among tbe Leptidae. Cbaetotactic 

 cbaracters would perbaps prove decisive in tbis question. If tbose two 

 genera are Asilidae, they would probably bave some tboracic macro- 

 chetae; as Leptidae, tbey would bave none. JLampromyia bas none, 

 and heptynotna probably neitber. 



NOTES. 



I. In speaking of Kuppelia and Bolbomyia (1. c. p. 18, top) and 

 tbe doubts of Loew concerning tbe relationsbip of tbe latter to Thereva, 

 Dr. B. says: ,,Es scbeint der Zweifel über die systematiscbe Stellung 

 in der Unkenntniss über die Fübler der Tbereviden zu liegen (siebe 

 Mik, Verb. Z. B. Ges. 1881, p. 321." — In tbe quoted passage, Prof. 

 Mik draws attention to tbe peculiar structure of tbe antenuae of Tbe- 

 reva, wbicb look 4-jointed, as a distinct suture cuts off tbe base of tbe 

 S"* Joint. But a similar suture exists at tbe base of tbe tbird Joint of 

 many Bombylidae and, in my opinion, is one of tbe indications of tbe 

 relationsbip of tbe two families, Tbat Loew, tbe autbor of a mono- 

 grapb of tbe Tberevidae, sbould bave been ignorant of tbis cbaracter 

 is somewbat improbable! — I inquired for Ruppelia in tbe Museum 

 at Frankfort; unfortunately tbe type does not exist any more in tbe 

 coUection. 



II. Even Loew was Struck by tbe resemblance of Artbropeas 

 sibirica to an Atberix („nacb Färbung und Form fast wie zur Ver- 

 wandtscbaft von Atberix ibis gebörig"; Stett. Ent. Z. 1850, p. 304); 

 but tbe structure of tbe antennae decided bim to place Artbropeas 

 among tbe Notacantba! At tbe time wben Glutops was discovered, my 

 talented friend Mr. E. Burgess in Boston pointed out its relationsbip 

 to Artbropeas. Altbougb fuUy accepting tbis view, I said in a letter 

 to bim „tbat I feit inclined to subordinate tbe structure of tbe antennae 

 of Artbropeas to its general babitus, wbicb is undoubtedly tbat of a 

 Leptid; as tbere was no more reason for regarding this organ as so 



