NORTH AMERICAN DIPTERA. 



bare arista, etc. Siphonophysa he proposes for a new species (pectinata y 

 Brax.il) and probably .S\ sordida Wied. (Brazil and West Indies) hav- 

 ing the arista plumose above only and a 'hinten ausgeschweiften Au- 

 genrand'). Chcetocceha maybe accepted, but the other two genera I 

 think should be held in abeyance for the present. If they are accepted 

 a dozen or more of the American species of Sapromyza and Pachyce- 

 rina should receive new names. 



Mr. Hendel republishes the earliest paper of Meigen, of which two 

 copies only are known to be in existence, in which scores of names, 

 many of them repudiated later by Meigen, antedate some of the most 

 common genera in diptera, and advises their substitution! He would 

 have deserved the thanks of a long suffering public had he withheld 

 these copies instead of republishing. 



Page 294, couplet 3, third line add: or the proboscis not long and 

 geniculate. Phyllotnyza nitens L,oew is a Paramyia. 



Page 295. Mr. Becker, recently, makes Ophthalmomyia a synonym 

 of Milichiella G. T. (1895); he is coriect. 



Page 298. Geomyzidse. Pseudiastata Coq. (Proc. Ent. Soc. Wash. 

 1908), near Diastata, but second basal cell coalescent with discal; 

 three fronto-orbitals; vibrisj-ae present. nebiilosa Coq. Md. Muti- 

 loptera Coq. (ibid.); wings six times longer than wide; arista short 

 plumose; one fronto-orbital; no postverticals; vibrissse present; hind 

 border of wing concave, apicalis Coq. N. Dak. 



Page 299, second line from bottom, for 'posterior' read basal. 



Page 301, couplet 2, dele 'p. 80,12 and'. 



Page 303, eighteenth line, for 'and small' read or absent. 



Page 308, couplet 22, for 'sixth' read fifth. 



Page 325, Helomyzidae. A very useful review of the North American 

 Helomyzidae, recently published by Aldrich and Darlington (Trans: 

 Amer. Eut. Soc. xxiv, March, 1908) adds two new generate our fauna. 

 These, together with one recently described by Coquillett (Can. En- 

 tom. March, 1907) may be differentiated from those given in the table 

 as follows: 



Near Helomyza, a propleural, two dorsocentral, two fronto-orbitals, 

 one sternopleural bristles present (pilosus, Mass.) Achsetomus Coq. 



Humeral, propleural, one dorsocentral, one fronto-orbital, no sterno- 

 pleural bristles present; oral margin receding, as in Anorostoma. 

 (johnsoni, Mass.) ...... Porsenus Darl. 



A humeral, propleural, five dorsocentral, two fronto-orbital, two 

 sternopleural bristles present: auxiliary vein indistinct, (oregona, 

 litorea, Oregon, Calif.) SiligO Aldr. 



The authors reject Heteromyza as of doubtful occurrence in North 

 America, leaving all the American forms easil) 7 recognized by the pec- 

 tinate costa. They also merge Scoliocentra into Leria, which I doubt. 



Page 329, couplet 6, second line for 'pleura!' read central. 

 Page 334, couplet T 3, for 'cell' read vein. 

 Page 376, couplet 164; for '169' read 165. 



Mr. Townsend proposes to make the specimen illustrated in Fig. 

 156 the type of a new genus and species, which he will call Enepalpus 

 flavicauda. For Fig. 157, he also proposes the new genus and species 

 Enfabricia flavicans Towns. 



