30 MONTANA EXPERIMENT STATION BULLETIN 366 



of Hardin in Big Horn County. Specimens were collected and 

 sent to Dr. H. H. Knight who identified them. The Labops was 

 much more common in wheat than was the Conostethus. Injury 

 was typical and consisted of mottling of the leaves. Where feed- 

 ing was intense there was a tendency for the leaves to curl 

 longitudinally and wither. The height of the injury to wheat 

 occurred approximately May 24, 1938, after which time the num- 

 ber of bugs decreased and the wheat, which was growing vigor- 

 ously, outstripped the injury. 



Range grasses attacked were Koeleria cristata (L.) Pers., 

 Poa secunda Presl., Stipa comata Trin. and Rupt., Stipa (?) 

 vrilliamsi Scrbn. and a species which is probably a Hordeum. 



LEAF FOLDING SAWFLY 



(Pontania bozemani Cooley) 



Larvae of this insect, prevalent in 1924, were again observed 

 in numbers, folding the edges of cottonwood leaves. Similar 

 damage has been noted as far north as Swift Current, Saskatche- 

 wan. 



ALPINE ROCK CRAWLER 



(Grylloblatta campodeiformis Walk.) 



Several new collection records, all in Gallatin County, have 

 accumulated for this alpine insect. The first Montana specimens 

 were taken in the Gallatin Range (1936), in southern Gallatin 

 County. Many more specimens have been found at several points 

 in the Bridger Mountains, about 20 miles from Bozeman. Al- 

 though formerly considered quite rare, this species is now readily 

 found at certain seasons of the year in favorable localities. A 

 recent intensive survey of one area covering 120 square yards 

 yielded 64 specimens. 



MAPLE TWIG BORER 



(Proteoteras aesculana Riley) 



Specimens of this insect, the first reported to the Montana 

 Agricultural Experiment Station, were reared from specimens 

 collected in Billings, in July, 1937. They were determined by 

 J. McDunnough. 



