CATALOGUE OF NORTH AMERICAN DIPTERA. 287 



delicatum Walker, List, iii, 645 (Psilopus). — N. Y. (Unrecognizable.) 

 dimidiatum Loew, Berl. Ent. Zeitsch., vi, 216; Mon. N. A. Dipt., 11, 246 (both 

 Psilopus) . — Mex. 

 Aldrich, Biologia, Dipt., i, 365 (Gnamptopsilopus). — Morelos, Mex. 

 Porto Rico, Roeder; South Amer. — Schiner, Novara, 212. 

 dorsale Loew, Cent., vi, 85 (Psilopus). — Cuba. 



filipes Loew, Neue Beitr., viii, 99; Mon. N. A. Dipt., ir, 286, pi. vii, f. 44 (Psilo- 

 pus).— Middle States. 

 flavicornis Aldrich, Dipt. St. Vincent, 342 (Gnamptopsilopiis) . — St. Vincent, W. 



L ; also from Grenada. 

 flavidum Aldrich, Dipt. St. Vincent, 341, pi. xii, f. 109 (Gnamptopsilopus) . — St. 



Vincent, W. L ; also from Grenada. 

 infumatum Aldrich, Biologia, Dipt., i, 365 (Gnamptopsilopus) . — Guerrero, Mex. 

 mexicanum Aldrich, Biologia, Dipt., i, 365 (Gnamptopsilopus) . — Vera Cruz and 



Tabasco, Mex. 

 pallens Wiedemann, Auss. Zw., ii, 219 (Psilopus). — N. Y. 



Loew, Neue Beitr., v, 4 (Psilopus albonotatus, from Isle to Rhodes) ; viii, 



97 (Psilopus pallens) ; Mon. N. A. Dipt., 11, 275 (id.). — N. Y. 

 OsTEN Sacken, Cat., 243, oc. and syn. — Spain, N. Y., R. L 

 N. J.— Smith Cat. 

 psittacinum Loew, Neue Beitr., viii, 96; Mon. N. A. Dipt, 11, 281 (Psilopus). 

 — Fla. 

 N. J. — Smith Cat. ; Porto Rico— Roeder ; St. Augustine and L. Worth, Fla. 

 — Johnson, 

 scintillans Loew, Neue Beitr., viii, 94; Mon. N. A. Dipt., 11, 273 (both Psilopus). 



—Middle States. N. J.— Smith Cat. 

 tener Loew, Cent., 11, 71 ; Mon. N. A. Dipt., 11, 284 (both Psilopus). — Pa. 



N. J.— Smith Cat. 

 unifasciatum Say, Jour. Acad. Sci. Phil, iii, 85 ; Compl. Works, 11, 75 (Dolicho- 

 pus) . — Pa. 

 Wiedemann, Auss. Zw., 11, 219 (Psilopus sayi). 



Loew, Neue Bietr., viii, 96; Mon. N. A. Dipt., 11, 280 (both Psilopus 

 bicolor). — Middle States. Loew also quotes the earlier descriptions, pp. 

 332, 289, 293. 

 GiGLio-Tos, Annales Soc. Ent. France. 1895, 359, suspects that Psilopus 

 leptogaster Thompson,. Eugen. Resa, 510, is the same as bicolor. 

 variegatum Loew, Neue Beitr., viii, 95; Mon. N. A. Dipt., 11, 278 (both Psilo- 

 pus). — Fla. Cuba. N. J. — Smith Cat; Fla., several places^ohnson. 



MESORHAGA. 



Schiner, Novara, 217, 1868. 



Aldrich, Kans. Univ. Quart., 11, 48, 1893 (AptortJius) ; Ent. News, xi, 

 531, sj-n. 

 albiciliata Aldrich, Kans. Univ. Quart., 11, 48 (Aptorthus).—\\e?,X.\n\\e. N. J.; 



Mich. N. J.— Smith Cat. 

 borealis Aldrich, Kans. Univ. Quart., n, 49 (Aptorthus). — St. Paul, i\linn. 

 nigripes Aldrich, Kans. Univ. Quart., 11, 49 (Aptorthus). — Cal. 

 townsendii Aldrich, Kans. L^niv. Quart., 11, 50 (Aptorthus). — Aztec, Ariz.; At- 

 lantic City, N. J. 



LEPTORHETHUM. 



Aldrich, Kans. Univ. Quart., 11, 50, 1893. 

 angustatum Aldrich, Kans. Univ. Quart., 11, 50; Dipt. St Vincent, 345, pi. xii. 

 f. 108.— St. Vincent, W. L 



