DIPTERA. 
443 
Oscinides. 
Oscinis frit. Cohn notices the habits of this species, and the injury done 
by it in the corn-fields of Silesia during the summer of 18G9 (Abhandl. 
schl. Gesellsch. vaterl. Cultur, 18G8-G9, pp. 180-184). 
Chlorops tamiopus. This species is also noticed by Cohn (/. c. pp. 190-192, 
and 197). Frauenfeld also notices the damage done by this insect (Verb. 
7.ool.-bot. Gcs. in Wien, xix. p. 002). 
Frauenfeld describes the production of an excrescence upon Triticum re~ 
pens by a Chlorops^ which ho seems inclined to identify with C. nasuta (Schr.). 
(Verb, zool.-bot. Ges. in Wien, xix. pp. 936-938.) 
New species : — 
Oscinis aristolocliicB, Rondani, Arch. Zool. Anat. Fis. 2nd ser. vol. i. p. 188 j 
0. delpinii, Rondani, ibid. 
Ilippelates dorsalis, Loew, Berl. ent. Zeitschr. xiii. p. 42, Cuba. 
Oscinis carbonaria, Loew, /. c. p. 42, Columbia ; O. dorsalis, Loew, 1. c. p. 43, 
Newport, Rhode Island. 
Siphonella reticulata, Loew, I, c. p. 43, Cuba. 
Elliponeura debilis, Loew, 1. c. p. 44, Columbia. 
Geomyzides. 
Rhicnoessa albula, sp. n,, Loew, Berl. ent. Zeits. xiii. p. 44, and R.parvida, 
sp. n., Loew, 1. c. p. 46, Rhode Island. 
Gymnopa opaca, sp. n., Rondani, Arch. Zool. Anat. Fis. 2nd ser. i. p. 189. 
Phytomyzides, 
Rhytomyza obscurella (Fall.). Weyenbergh describes and illustrates the 
transformations and natural history of this species (Tijdschr. voor Ent. 2'*? ser. 
iv. pp. 171-174, pi. 6). 
Rondani places Trigonometopus in his group Sciomyzinge. (Seep. 439.) 
New species : — 
Lobioptera indecora, Loew, Berl. ent. Zeits. xiii. p. 60, Nebraska; L. leuco- 
gastra, Loew, /. c. p. 60, Cuba. 
Caco.rcnus semihdeus, Loew, 1. c. p. 61, Cuba. 
Trigonometopus vittatus, Loew, 1. c, p. 61, Georgia. 
Rhytomyza nervosa, Loew, 1. c. p. 62, and R. genualis, Loew, ibid., Columbia 
District. 
Leucopis simplex, Loew, /. d. p. 61, New York. 
Rhyllomyza nitem, Loew, 1. c. p. 46, Pennsylvania. 
Agromyza setosa, Loew, 1. c, p. 46, Columbia District; A. simplex, Loew, 
1. c, p. 4G, Middle States; A. virens, Loew, ibid., Pennsylvania; A. magni- 
cornis, Loew, ibid., Pennsylvania ; A. angulata, Loew, 1. c. p. 47, Pennsylvania; 
A. melampyga, Loew, 1. c. p. 48, Columbia District ; A. coronata, Loew, ibid., 
Cuba, Pennsylvania ; A. longipennis, Loew, ibid., and A. marginala, Loew, 
/. c. p. 49, Columbia; A. parvicornis, Loew, ibid., Washington; A. neptis, 
Loew, 1. c. p. 60, Columbia. 
Agromyza jucunda. Van der Wulp, Tijdschr. voor Ent. 2'*® ser. ii. p. 161, 
pi. 6. figs. 19, 20, Wisconsin. 
