May, 1919] North American Tingidce 419 



synonymous with distincta. In the late McElfresh collection 

 there were many specimens of typical Corythucha distincta 

 O & D under the name ''Corythuca contaminata Uhler MS." 

 In fact some of these specimens bear the same locality and 

 number label ("Colo. 626") as type and were undoubtedly col- 

 lected with the type. In the late Heidemann collection, now 

 at Cornell University, there is a long series of specimens of 

 Corythucha pallida O & D under the manuscript name Cory- 

 thucha contaminata Uhl. ; this label is written in Uhler's own 

 hand writing. Furthermore, I have seen two or three other 

 species bearing this same manuscript name. It seems entirely 

 inept to put the "manuscript" or "cabinet" names of insects 

 in literature, especially when there are several species under the 

 same name or several names refer to the same species and 

 when these names have never appeared in literature. 



Corythucha immaculata Osborn and Drake. 



Corythucha pura Gibson is a synonym of this species. My 

 long series of specimens from Montana connect up the two 

 forms perfectly and pura cannot be considered even a variety 

 of immaculata. The primary food plant is Balsamorhiza 

 sagittata. 



Corythucha morrilli Osborn and Drake. 



A common insect in Texas, Arizona, New Mexico, Colorado, 

 California and northern Mexico. Specimens at hand bear the 

 food plant labels "on desert plant" and "on Helianthusy 

 Morrill collected specimens on beans at Yuma, Arizona. 

 Morrilli is somewhat variable in size, height and width of hood, 

 and color. C. mexicana Gibson is very close to the larger 

 specimens of morrilli and it may prove to be identical or a 

 variety of morrilli. Both insects are much alike in color 

 pattern. 



Corythucha fuscigera Stal. 



This insect has been much confused in literature with several 

 other species. In examining the specimens in the National 

 Museum and several other collections the writer found five or 

 six different species under the name fuscigera. The distribution 

 as given by Gibson (Trans. Am. Ent. Soc, Vol. XLVI, p. 78) 



