OF WASHINGTON, VOLUME XIII, 1911. 23 



The capture of Goniops chrysocoma has been recorded 

 from the following localities: Trenton Falls, New York; 1 Del- 

 aware, 1 Dunfield and Delaware Water Gap, New Jersey; 2 

 Pittsburg, 3 Jeannette (type locality), 4 and Highspire, 5 Pennsyl- 

 vania; and Hinckley and Vinton, 6 Ohio. A specimen in the 

 National Museum collection was taken on the Peaks of Otter, 

 Virginia, July 16, 1906, by William Palmer. On Plummer's 

 Island, Maryland, the fly has been taken at the following 

 dates, besides those previously mentioned: June 28, 1905; 

 July 14, 1907; June 27 and July 11, 1909. Single males were 

 taken on the first two dates; all other captures noted relate to 

 females. 



The remainder of this article will be devoted to descriptions 

 of the newly hatched and full-grown larvae and the pupa of 

 Goniops. They are illustrated by figures 1 and 2, and by 

 Plates I-III. An explanation of the plates will be found 

 on page 29. In the descriptions of the larvae the segments 

 are numbered from the head backward. The writer is fully 

 aware of the general use of the terms pro-, meso-, and meta- 

 thorax for the three anterior segments, but they are here 

 spoken of as the first, second, and third body-segments, which 

 .they really are. In the newly hatched larvae they are scarcely 

 differentiated from the following segments. In the full- 

 grown larvae, w-hile distinguishable by the surface markings, 

 their exterior features are homologous with those of more 

 posterior body-rings. In comparing and describing them, 

 therefore, it is more natural to use numerical designations. 



FIRST-STAGE LARVx. 



The average length of first-stage larvae of Goniops chrysoco- 

 ma which have been preserved in alcohol is about 1 mm. In life 

 they are about twice as long. The larvae are not tuberculate, 

 but the margins of each segment from the third to the tenth, 

 especially the front margins, are more or less raised into low 

 rounded rings. On a larva with arched body definite .trans- 

 verse impressions behind the anterior fleshy annulus of each 



'Osten-Sacken, C. R. Mem. Bos. Soc. Nat. Hist., II, 1875, p. 368. 

 2 Smith, J. B. Suppl. 27th Ann. Rep. N. J. State Bd. Agr. (1899), 

 1900, p. 640. 



3 Hine, J. S. Ent. News, XI, WOO, p. 192. 

 4 Aldrich, J. M. Psyche, VI, 1892, pp. 23(i-237. 

 5 Walton, W. R. Ent. News, xix, 1908, p. 464. 

 6 Hine, J. S. Ohio Nat, II, 1901, p. 16!>. 



