NOTES. 241 



papers on European EmpiJae, in the Berl. Entom, Z.itschr. Vol. XT, 

 XII, XIII. 



177. Pacbymeria. See about it Loew's paper in the Wien. Ent. 

 Mon. VIII, IS'ovemb., where the two american species are also discussed. 



178. Compare Loew, on Microphorus in the Schles. Z. f. Ent. 1863. 

 On the relation between his genus and ItcapJiila, see Loew, Beschr. 

 Europ. Dipt. II, p. 250. 



179. About the european species of Drapetis and Stilpcri see Loew, 

 Neue Beitr. VI, p. 33 The passage about titil]>on, nov. gen. runs thus: 



,,Ts separated from Drapdis on account of its front, which is of 

 ,,equal breadth and not triangular; and of its arista, which is dorsal 

 ,,and not apical." 



180. Compare: Ueber die schlesischen Arten der Gatt. Tachypeza 

 und Micrjphorus by H. Loew, in Schles. Z. f. Knt. 1.^63. 



In this paper Dr. Loew protests against the substitution of Platy- 

 Ijctlljus Macquart for Tachydromia Div. B, AJeigen. 



The facts are these: Meigjn. in his principal work, divides the 

 genus Tachydromia in two sections, which he calls A andJB; Macquart 

 iDipteres du Nord etc. 1827), proposes to call the larger section B, 

 Platypalpus. 



llefore being aicare of this, Meigen, in his Vol. VI (1830), proposed 

 to call the section A Tachypeza, leaving the name Tachydiomia, to the 

 larger section B. In his Vol. VII , p. 94 (1838) , he maintains this 

 arrangement against Macquart's, and points out that the name Tacliy- 

 di'Oinift should, as a matter of right, remain to the larger section. 



The question may be argued both ways. Zetterstedt and Loew 

 (in the Schles. Zeitschr. 1863) take Meigen's view. Dr. Schiner takes 

 the opposite ground, and adopts Platy palpus (Syn. Tachydromia, Div. 

 B, Meigen) and Tachydromia (Syu. Div. A, Meigen and Tachypeza, 

 Meigen,). I follow Meigen's view, as a matter of expediency, waiving 

 the doubtful question of right. Meigen's work being the foundation of 

 Dipterology , it is better, 1 think, to preserve its nomenclature, as far 

 as possible. Platypalpus moreover labours under the disadvantage of 

 being a hybrid compound of a latin and a greek word. 



Miens Latreille, cannot be maintained against the much earlier 

 Sicus, Scopoli, which is a Myopa ^compare note 47a). 



181. On Ardoptcra, see Loew, Wien. Entom. Monatschr. II, p. 7. 



182. Synaoiphotera. In the Beschr. Europ. Dipt. II, 255, Mr. Loew 

 characterizes this genus as follows: 



Proboscis short, horny; palpi small, incumbent. 

 Antennae short, with an exceedingly short terminal style. 

 Legs slender, the anterior ones of the ordinary structure. 

 The third longitudinal vein of the wings has its anterior branch often 

 connected by a crossvein with the second vein; discal cell elongated, 

 emitting three veins towards the alar margin; the two posterior basal 

 cells elongated; the posterior but very little shorter than the preceding; 

 sixth longitudinal vein strung, reaching the alar margin. 

 19 



