CATALOGUE OF NORTH AMERICAN DIPTERA. 49 



Aii Essay of Comparative Chaetotaxy, or the Arrangement of Characteristic 

 Bristles of Diptera. Originally printed in Mittheil. d. Miinchener Entomol. 

 Vereins, v, 121-138, 1881 ; revised and republished in Trans. Entom. Society 

 of London, 1884, pt. iv, pp. 497-517. 



An attempt to locate and name the principal characteristic bristles (ma- 

 crochaetae) of Diptera, as a means of classification; very important. No 

 new species. 



On Professor Brauer's Paper, " Versuch einer Characteristik der Gattungen 

 der Notacanthen." Berl. Entom. Zeitsch., xxvi, 363-380, 1882. 

 Many notes on genera ; no new species. 



On the Genus Apiocera. Berl. Entom. Zeitsch., xxvn, 287-294, 1883 ; correc- 

 tion, xxx, 139, 1886; Second Notice on Apiocerina, xxxvi, 311-316, 1891. 

 No new species. 



Synonymica Concerning Exotic Dipterology. n. Berl. Entom. Zeitsch., 

 xxvii, 295-298, 1883. 

 Dialyis WALKER, and other genera mentioned. 



A Singular North American Fly. Berl. Entom. Zeitsch., xxvii, 299-300, 

 1883. 

 Opsebius pterodontinus n. sp. 



Studies on Tipulidae. Part I. Review of the Published Genera of the 

 Tipulidae longipalpi. Berl. Entom. Zeitsch., xxx, 153-188, 1886. 

 Brachypremna n. gen., from Texas. 



Studies on Tipulidae. Part II. Review of the Published Genera of the 

 Tipulidae brevipalpi. Berl. Entom. Zeitsch., xxxi, 163-242, 1887. 

 Rliamphidia albitarsis n. sp., from Porto Rico. 



Biologia Centrali-Americana. Vol. i. Cecidomyidse-Empidae. 216 pp., 3 col. 

 plates. 128 pp. in 1886, the remainder in 1887. 

 Many new species, and a few genera. 



On Mr. Portschinsky's publications on the larvae of Muscidae, including a 

 detailed abstract of his last paper, " Comparative biology of the necropha- 

 gous and coprophagous larvae." Berl. Entom. Zeitsch., xxxi, 17-28, 1887. 

 Although Portschinsky's work does not come within our faunal limits, 

 relating to southern Russia, the subject is very interesting, and I cannot 

 refrain from mentioning the paper. It forms a useful complement to 

 Howard's paper on Diptera of excrement. 



Some North American Tachinae. Canadian Entomologist, xix, 161-166; 

 Sept., 1887. 

 Five new species. 



Chloropisca prolifica n. sp. Lintner's 4th New York Report, 60, 61, 1888. 

 See Chlorops variceps. 



Suggestions Toward a Better Grouping of Certain Families of the Order 

 Diptera. Entomologist's Monthly Mag., second series, n, 35-39, 1891. 



Synopsis of the Described Genera and Species of the Blepharoceridae. Berl. 

 Entom. Zeitsch., xxxvi, 407-411, 1891. 



Analytical tables of the genera and species, with references ; no new 

 species. 



On the Characters of the Three Divisions of Diptera: Nemocera vera, Nemo- 

 cera anomala, and Eremochaeta. Berl. Entom. Zeitsch., xxxvir, 417-466, 

 1892. 



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