KEY TO AMERICAN INSECT GALLS 



189 



Cucurbitaceae (^ourd family) 

 Cucumeris (melon) 



Reared from curled, slightly enlarged tips. Lintn. '96, p. 168 



Itonid. Melon tip midge, Contarinia setigera Lintn. 

 Reared from aphids infesting melon tips. Felt 'o8e, \). 397 



Itonid. Melon aphid midge, Aphidoletes cucumeris Lintn, 



Fig. 210. 



Elder bud midge, 

 Asp hondy 1 i a 

 s a m b u c i Felt. 

 (Author's illus- 

 tration) 



Fig. 211. Elder stem 

 midge, Neolasioptera 

 s a m b u c i Felt. One gall 

 in section and another 

 shown behind the normal 

 stem. (Original) 



Compositae (composite family) 

 Vernonia (iron weed) 



Probably from a bud gall. Felt 'i6d, p. 135 



Itonid. Ironweed bud midge, Asphondylia vernoniae Felt 

 Reared from blossoms. Felt 'iik, p. 552 



Itonid. Ironweed blossom midge, Youngomyia vernoniae 



Felt 

 Reared from deformed florets or an oval petiole or midrib gall, with a length 

 of 6 mm. Beutm. '07c, p. 389 



Itonid. L a s i o p t e r a vernoniae Beutm 



