1912] Book Notices 183 



sides of each segment. Legs black, the tibiie strongly dilated in comparison with 

 other species, anterior tibiae with one, and the middle and posterior tibiae with 

 two narrow bands of white; basal half of the middle posterior tarsi white. Hal teres 

 with stalk white and knobs black. Wings a uniform browTiish black, finely flecked 

 with white, those toward the base forming narrow crescent shaped markings; 

 apical band prominent and extending from the end of the second to the end of the 

 posterior branch of the third longitudinal vein; the outer end of all the posterior 

 cells margined with white. Length, 6 mm. 



Jacksonville, Fla., (Mrs. Slosson); Crescent City, June, 

 (Hubbard), U. S. Nat. Museum. This species was referred doubt- 

 fully to Hoematopota americana in my first list of Florida Dijeteva, 

 (1895). 



I am indebted to the kindness of Mrs. Slosson and Mr. Frederick 

 Knab for the loan of specimens. 



BOOK NOTICE. 



Beitrage zur Kenntnis der siidamerikanischen Dipterenfauna. Fam. Asilidae. 

 By Professor Dr. F. Hermann. (Abh. der Kaiserl. Leop. — Carol. Deutschen 

 Akad. der Naturforscher XCVL Nr. 1, pp. 1-275, Tab. 1-5, and with 87 fig. 

 in text, 1912, Halle). 



The present work on the Asilidse of South America covers only 

 the subfamily Laphriinee, and is largely based on the collection 

 made in Chili, Peru and Bolivia in 1902-1904 by the late W. 

 Schnuse. 



The author has worked up this material in a very thorough and 

 comprehensive manner, and his work forms a valuable contribu- 

 tion to our knowledge of the Diptera of that region. The work 

 has also considerable bearing on the North American species. 

 The author considers many of the recognized species of Atomosia 

 to be only varieties of A. rufipes Macq., placing in this category 

 A. sayii Johns., mucida O. S., soror Bigot, pundifera Herm., and 

 eupoda Bigot. The author also calls attention to the fact that the 

 true types of the genus Dasyllis, (D. hoemorrhoa and croceiventris 

 Wied.) are very different from the North American species com- 

 monly referred to this genus, such as D. grossa, etc. Twenty-one 

 new genera and sixty-one new species are described. 



C. W. J. 



