1912] The Ottawa Naturalist 165 



a median gallery inhabited by a large, orange larva. Described 

 as Cecidomyia, the present generic reference provisional. 



L. ephedrae Ckll. The gall is a fusiform swelling on the 

 twigs of Ephedra trijurca. Length \ inch, diameter about \ inch. 



L. farinosa Beutm. An irregularly ridged, warty, light 

 brown swelling on the under side of the blackberry leaf and 

 usually along . the midrib or occasionally on the lateral 

 veins. Length about h inch. This is the undescribed Ceci- 

 domyia farinosa of Osten Sacken. 



L. nodulosa Beutm. Gall an irregular, sub fusiform or 

 elongate swelling on the smaller branches of blackberry. Length 

 about 1 inch, diameter \ inch. Also mentioned by Osten 

 Sacken without description, as Cecidomyia farinosa. 



L. linderae Beutm. Gall an irregular, subcortical swelling 

 on the twigs of spicebush, Lindera, from 1 to j inches in length. 



L. solidaginis O. S. Gall unknown. The adult is closely 

 related to L. dor simaculata Felt. Listed by Glover as Cecido- 

 myia. 



L. ephedricola Ckll. Gall a resinous, elongate, lateral, 

 brown swelling on the twigs of Ephedra trijurca. 



L. tumifica Beutm. Eccentric, irregular, subglobose or 

 fusiform enlargement on solidago stem. Length about 1 inch. 



Neolasioptera Felt. 



Separated from the preceding genus by the simple fifth 

 vein. The forms incorrectly referred to Choristoneura by the 

 author in 1907, belong in this genus. The species, like those 

 of Lasioptera, live mostly in subcortical tissues. 



N. sambuci Felt. Gall an irregular, subcortical swelling 

 on the side of the smaller elder stems. It ranges in length from 

 1 to 2 inches and may have a diameter of nearly 1 inch. De- 

 scribed as Cecidomyia. 



N. viburnicola Beutm. The gall is an irregular, subcortical 

 swelling on stems of Viburnum dentatum. Length 1 to 3 inches, 

 approximate diameter \ inch. Described as Lasioptera. 



N. cornicola Beutm. Galls very irregular, subcortical swel- 

 lings with a length of h to 1 inch. Described as Lasioptera. 



N. ramuscula Beutm. Gall a fusiform stem or branch 

 swelling on aster, with a length about h inch and a diameter 

 of j inch. Described as Cecidomyia ; C. strobiligemma Steb. 



Asteromyia Felt. 



Distinguished from the two preceding genera by the uni- 

 or biarticulate palpi and comprising a number of forms earlier 

 referred by the author to Baldratia. These species live mostly 



