AMERICAN DIPTERA. 239 



Type. — University of Kansas. 



Habitat. — Georgia (type); Black Mts., N. C. (June 26, W. 

 Beutenmuller). 



Mr. W. Beutenmuller captured two specimens among the 

 Black Mts., N. C, of which one is at the American Museum, 

 and the other, a female, at the National Museum. 



? Ceraturgus uiger. 



Ceraturgus niger Wiedemann, Dipt. Exot., I, pt. 2, 25; pi. II, 



fig. I; 1838. 

 Ceraturgus niger Walker, List, Suppl. II, 378, pt. desc. 

 Taracticus niger Osten Sacken, Cat., 72, 1878 (gen. ref.). 

 ? Cearaturgus niger Brauer, Wien, Ent. Zeit., II, 54, 56, 1883. 

 Ceraturgus niger Williston, Trans. Am. Soc, XI, 1884 (doubts 

 generic position). 

 " $. — Long 4 I. niger. — Abdomine segmentis albo maculis (Tab. 2, 

 fig. 1). 



Face et front d'um jaune grisratre. Moustache simple, jaunatre. 

 Antennes noires. Thorax a' duvet roux, grisatre et bandes noires; 

 1' intermediate divisee par une ligne. Abdomen a reflets bronzes: 

 deuxienne-quatrieme segments a petite bande blanche de chaque cdte\ 

 au bord posterior. Pieds fauves; un peu de noir aux genoux inter- 

 mediaires et posterieurs: jambes noires et articles des tarses noirs a 

 V extreniite\ Ailes jaunatres." 



Del' Amerique boreale. 



CERATURGOPSIS. 



Ceraturgopsis Johnson, Psyche, X, 111, 1903. 



Ceraturgopsis differs from Ceraturgus only in the structure 

 of the terminal segment of the antennae, which is much shorter 

 than in Ceraturgus cruciatus, rounded, and with a slight lobe- 

 like projection on the outer side about two-thirds the distance 

 towards the apex, which bears a short spine, and is entirely 

 naked, while the corresponding segment of either Ceraturgus 

 cruciatus or aurulentus is densely pubescent. 



There is some doubt in my mind as to the validity of this 

 genus. The significant features are the nakedness of the ter- 

 minal segment of the antennas and the presence of the projec- 

 tion with the short spine (PL IV, fig. 3). Upon denuding the 

 corresponding antennal segment of Ceraturgus cruciatus, a 

 slight, but distinct, projection is found on the outer side about 



TRANS. AM. ENT. SOC, XXXV. JUNE, 1909. 



