w 

 368 [February 



oval, spiracle on first segment of abdomen near the apex, on the expansion of the 

 petiole; seventh segment wider than the sixth, making the abdomen appear trunc- 

 ate ; legs honey yellow, coxae and trochanters black, ajsical joints of tarsi black- 

 ish. Wing hyaline, lower angle of radial cell less obtuse than usual. 



% . White hair upon the face shorter than female; clypeus retracted, rounded in 

 middle; segments of abdomen hardly flattened. 



Twenty five specimens. Farmington, Conn. 



The clypeus in this species has a sinus on each side of the advanced na- 

 sus, therein diifering from all the other species which have it evenly and 

 moderately rounded. 



I present this description of so many new species in this genus with 

 hesitation and have endeavored to condense the number of species, but the 

 variations in form are quite as great as in color, especially in the antennae 

 and abdomen, to which latter my desci'iptions hardly do justice. 



I should add that the term rufous as used here is applied to the color 

 termed ferruginous by Brulle which seems capable of latitude of interpre- 

 tation. 



LASIOFTEBA reared from a gall on the golden-rod. 

 BY BARON R. OSTEN SACKEN. 



I am indebted to Mr. Edw. Norton for the communication of. several 

 specimens of this Lasiojjfera , reared by him in a box which contained a 

 number of galls on the stalks of Solidago, all resembling more or less the 

 common gall of TrypcAa Solidaginis Fitch. By a careful examination of 

 these galls and their contents I attempted to discover from which of them 

 the Lasiopterse. had escaped. Although this attempt remained fruitless, 

 and I did not find, as I had expected, any exuviae of the pupa of the 

 midse, I will nevertheless communicate some facts, which resulted from 

 my examination, and may be useful for future observers. I soon perceiv- 

 ed that the galls could be separated into three groups. The first group 

 was formed of the fully developed galls of the T. solidagink, with the pu- 

 pa-shell on the inside and the round hole, through which the fly had es- 

 caped, on the outside. The walls of the cavity of some of these galls 

 showed a marked difiereuce from the smooth and whitish or yellow walls 

 of the normal specimens, being brown or blackish and bearing traces of 

 the burrowing of some other insect than the larva of Trypeta^ which, how- 

 ever, had not prevented the latter from completing its transformation, as 



