CATALOGUE OF NORTH AMERICAN DIPTERA. 567 



ORTHOCH^TA. 



BECKER, Berl. Ent. Zeitsch., xxxix, 101, 1894 (Orthachata). 

 pilosa ZETTERSTEDT, Ins. Lapp., 732; Dipt. Scand., v, 2064 (Cordylura). Europe. 

 SCHINER, Fauna Austr., n, 12 (Clcigastra*) . 



COQUILLETT, Proc. Wash. Acad. Sci., u, 456, oc. in N. A. Metlakahtla, 

 Alaska. 



MEGOPHTHALMA. 



BECKER, Berl. Ent. Zeitsch., xxxix, 105, 1894 (Mcgaphthalma). 

 unilineata ZETTERSTEDT, Ins. Lapp., 727; Dipt. Scand., v, 2010 (both Cordylura). 



Europe. 



BECKER, Berl. Ent. Zeitsch., xxxix, 107. 

 OSTEN SACKEN, Cat., 1/3, oc. in Sitka, Alaska (Cordylitra). 



HEXAMITOCERA. 



BECKER, Berl. Ent. Zeitsch., xxxix, 107, 1894. 

 cornuta WALKER, List, iv, 1047 (Lissa}. Martin Falls, Canada. 



COQUILLETT, Proc. Wash. Acad. Sci., n, 456, oc. and gen. ref. Yakutat, 



Alaska. 



flavida COQUILLETT, Proc. U. S. N. M., xxm, 612. Franconia, N. H. 

 vittata COQUILLETT, Jour. N. Y. Ent. Soc., vi, 165. Col. 



PSELAPHEPHILA. 



BECKER, Berl. Ent. Zeitsch., xxxix. 122, 1894. 

 similis COQUILLETT, Proc. U. S. N. M., xxv, 124. Beverly, Mass. 



HYDROMYZA. 



FALLEN, Hydromyzides, i, 1823. 

 SCHINER, Fauna Austr., n, 1864. 

 BECKER, Berl. Ent. Zeitsch., xxxix, 132, 1894. 

 confluens LOEW, Cent., in, 50. English R., Canada. 



POGONOTA. 



BECKER, Berl. Ent. Zeitsch., xxxix, 1894, 138 and 141 (Pogonota and 



Okenia) . 



COQUILLETT, Proc. Wash. Acad. Sci., n, 456, 1900, unites the preceding, 

 kincaidi COQUILLETT, Proc. Wash. Acad. Sci., n, 455. Popof Id., Alaska. 



MICROPROSOPA. 



BECKER, Berl. Ent. Zeitsch., xxxix, 147, 1894. 

 haemorrhoidalis MEIGEN, Syst. Beschr., v, 237 (Cordylura). Europe. 



ZETTERSTEDT, Ins. Lapp., 731 and 732 (Cordylura hamorrhoidalis and pal- 



Upcs} ; Dipt. Scand., v. 2042, 2047, 2049 (C. lividipes, hamorrhoidalis, 



and pallipcs'). 



STAGER, Groenl. Antliater, 366, oc. in Greenland. 

 OSTEN SACKEN, Cat., 172, oc. on White Mts., N. H. 

 BECKER, Berl. Ent. Zeitsch., xxxix, 149, syn. and desc. 

 LUXDBECK, Dipt. Grcenl., n, 290, oc. in Greenland (Clcigastra}. 



OPSIOMYIA. 



COQUILLETT, Jour. N. Y. Ent. Soc., vi, 162, 1898. 

 palpalis COQUILLETT, loc. cit White Mts., N. H. 



