UHLER ON INSECTS. 779 



flowers. As its color agreed well with those organs, it was generally 

 well concealed from view. It was not met with in any other locality. 



Several minute forms of CurcuUoiiidce were swept from various plants 

 and flowers in the valley of the Arkansas, near Colorado Springs, and 

 at Denver, but a larger number of specimens of them will have to be 

 collected before the species can be determined with precision. 



DIPTERA.* 



Fam. TIPULID^E. 



JDicranomyia longipennis Loew. 

 West of Denver, August 5. 



Symplecta punctipemiis St. Farg. 

 Observed on the plains near Denver, August 5 and later. 



Ptyclwptera lends O. S. 

 Occurs in Clear Creek Cailon and in Beaver Brook Gulch, August 6. 



Bittacomorplia davipes Fab. 



A few specimens were observed in the suburbs of Denver, flying over 

 marshy patches of ground. 



Faclujrrhina ferruginea Fab. 

 Captured on the plains, near Denver, August 8. 



Fam. STRATIOMYID^g^. 



XemoteJus canadensis Loew. 



Moderately common in the vicinity of Colorado Springs, and also in 

 Manitou Park, August 10 and later. 



Chloromyia viridls O. S. 

 Common in the vicinity of Denver, and also at Colorado Springs. 



Odontomyia nigrirostris Loew. 



Very common on sunflowers, on the heads of which they lodge and 

 remain for hours. Colorado Springs and Denver, August 8 to 18. 



Odontomyia hinotata Loew. 



This very beautiful species occurred at Colorado Springs August 17. 

 It was the rarest of them all. 



Two other species of Odontomyia were captured in the vicinity of 

 Colorado Springs, but I am unable to cite their specific names. 



All of these species were most abundant near Colorado Springs, and 

 onl.v one specimen of 0. nigrirostris was found in Manitou Park. 



* Kindly ileteruiiiied for nie by Baiou C. R. vou Osten Sackeu. 



