E. T. CRESSON, JR. 41 



New York: Beaverkill, Sullivan County, August 5, (Cresson), [A. N. 

 S. P.]. Ithaca, June 22 to July 2, [Cornell]. 



Pennsylvania: Swarthmore, August 21 to October 19, (Cresson), [A. X. 

 S. P.]. 



District Of Columbia: Chain Bridge, September S, (Knab and JMalloch), 

 [U. S. M. M.]. 



Virginia: Dead Run, Fairfax County, March 14 and June IS, (P. C. 

 Shannon), [U. S. N. M.]. 



California: Berkeley Hills, September 9, (J. C. Bradley), [Cornell]. 

 Palo Alto, June 3, (M. C. VanDuzee), [^'anDuzee]. 



MELINA Desvoidy 

 1830. Desvoidy, Myod., 695. 



This name must replace Sciomyza of authors, on account of 

 the designation, by Westwood (1840), of Scwmijza simplex Fallen 

 as the type-species of Sciomyza, which species is not congeneric 

 with those constituting the present genus. Mclina was proposed 

 for the reception of a new species, riparia, which is synonymous 

 (Hendel, 1910) with Sciomyza dubia Fallen (1820). 



The genus is not well marked and further study may result in 

 the separation of some of its groups as distinct genera. Dr. 

 Hendel did much to establish the FiUropean species on stable 

 bases. The specific characters seem to have been little under- 

 stood, so that comparisons with European named material, unless 

 determined by Hendel or some other recent and competent author- 

 ity, will give little satisfaction. Fortunately Dr. Hendel's revi- 

 sion treats this genus verj^ thoroughly, making it comparatively 

 easy to determine European material; however, unless comparison 

 is made with authentically determined European specimens, I 

 do not feel warranted in using European names for our forms 

 if any doul^t exists regarding such determinations. Consequently 

 I retain the specific name based on American material whenever 

 certain of the determination. 



The genus, as limited here for our species, may be diagnosed as 

 follows: Head much broader than high; frons opaque, or slightly 

 shining anteriorly; one or two frontal bristles; lunule not pro- 

 truding. Face short, epistoma, at most, slightly prominent. 

 Propleural bristle well developed. Fore tibiae with one pre- 

 apical bristle. Our species are opaque, more or less cinereous, 

 with fore tibiae apically, and at least, apical joints of tarsi, black, 



TRANS. AM. ENT. SOC, XLVI. 



