APPLE LEAVES, APHIS ATTENDANTS NEW- YORK ACINI A. 67 



is found at this season without any hole in it. In these the worm 

 is still remaining, to complete its changes and continue its spe- 

 cies the coming summer. And if one of these balls be placed in 

 a tumbler with a piece of paper tied over it, the fly can in due 

 time be obtained therefrom. Its form and size is much like that 

 of the common house-fly, but it has an odd appearance from its 

 wings being opake and of a tawny brown color, with clear spots 

 upon the inner margin and at the tip. It may appropriately be 

 named the Golden-rod fly (Acinia Soiidaginis). 



This fly measures from 0.35 to 0.40 to the tip of its wings. Tts body is of a 

 pale brownish yellow or a tawny whitish color with two darker brown stripes 

 above upon the thorax. The antennae, mouth and legs, are dull yellow, the 

 face white, and the top of the head yellowish or reddish brown, with a black- 

 ish spot at base where the three ocelli or simple eyes are situated. The wings 

 are tawny brownish-yellow, with blackish clouds, and with several dots, and 

 the veins lighter yellow. On the outer margin beyond the middle, are two 

 small triangular hyaline spots, and a third longer one inside of these, a large 

 transverse hyaline spot on the apex, and two large triangular ones upon the 

 inner margin, the inner one being larger and prolonged upon the margin to the 

 base. Upon the margin of the wing, in these large hyaline spots are some 

 tawny yellowish dots or small spots, namely, three in the apical spot, one in 

 the smaller triangular one, one or two in the larger triangular one, and three 

 where this last S£>ot is prolonged in the axilla. 



Another pretty species of Acinia, which is commonly found resting upon 

 brakes in our meadows in midsummer, but which I have not yet discovered in 

 its preparatory state, may be named the New-York Acinia {A. Novaboracen- 

 sis.) It measures 35 to the tip of its wings, and is of a pale brownish or 

 tawny flesh color, and like- the preceding species, is clothed with a short stiff 

 beard, which is of a silver gray color, with scattered black bristles. The or- 

 bital edge of the eyes is whitish, and the eyes, when the fly is alive, are of a 

 pale coppery red color, crossed with three golden yellow stripes having a green 

 reflection, the middle one of these stripes being broadest, and the upper one 

 slightly narrower than the lower one. When dead the eyes change to black- 

 ish brown and the stripes to black, and they are now much less obvious. The 

 antenn?e are pale, tawny yellow, with a simple black seta or coarse bristle on 

 their upper side. The face is whitish, with two large black dots in the mid- 

 dle and one on each side between the antennae and the eye, and a transverse 

 brown spot is placed on each side between the anterior part of the mouth and 

 the eye. The abdomen is dull pale yellow, with the apical segments black ex- 

 cept on their posterior margins. The wings are opake, black, with a slender, 

 hyaline-white crescent upon their tips, the anterior horn of which is sometimes 

 tinged with tawny yellow, and upon the middle of the anterior margin is a 

 small streak of the same color. The whole wing is covered, except towards 

 the anterior side and the apex, with numerous white dots, those in and to- 

 wards the axilla being larger. In some specimens a pruinose powder of a 

 more intensely white color forms a ring upon the margin of all the larger dots- 



