18 BULLETIN 834, TJ. S. DEPARTMENT OF AGRICULTURE. 



(50) Uvakov, B. P. 



1914. REPORT OF THE ENTOMOLOGICAL BUREAU OF STAVROPOL FOR 1913. In 



Dept. Agr. Centr. Bd. Land Admin, and Agr. Petrograd. 86 p. 



(Rev. Appl. Ent, ser. A, v. 3, p. 44-47.) 



Records Tracheitis tabidus injuring wheat; not determined if more 



injurious than Cephus pygmaeus as differences in larvae are still 



unknown. 



(51) CoRET, E. N. 



1914. insect pests of 1914. In Kept. Md. Sta. Hort. Soc, v. 17, p. 



104-112. 



Page 106 : Records Cephus pygmaeus injuring wheat at Germantown, 

 Md. (Undoubtedly a misidentification of Tracheitis tabidus.) 



(52) Borodin, D. 



1915. CEPHUS PYGMAEUS L., ON THE WESTERN EXPERIMENTAL FIELD OF 



THE AGRICULTURAL EXPERIMENT STATION OF STAVROPOL, CAUCASUS. 



In Husbandry, Kiev, p. 876-SS3. (Rev. Appl. Ent., ser. A, v. 4, 

 1916, p. 21.) 



Records Tracheitis tabidus infesting stubbles of barley, and winter and 

 spring sown wheat in Stavropol. 



(53) ZOLOTAREVSKY, B. X. 



1915. PRELIMINARY REPORT ON THE WORK ON ENTOMOLOGY IN 1914. In 



Stavropol-Caucasian Agr. Exp. Sta., Stavropol. 12 p. (Rev. 

 Appl. Ent., ser. A. v. 3, 1915. p. 479-480.) 



Records Trachelus tabidus as appearing later than Cephus pygmaeus, 

 and chiefly found on summer-sown crops. 



(54) Uvaeov, B. P., & Glazunov, V. A. 



1916. REPORT ON THE WORK OF THE ENTOMOLOGICAL BUREAU OF STAVROPOL 



for 1914. In Dept. Agr., Ministry of Agr., Petrograd, p. 13-54. 

 (Rev. Appl. Ent., ser. A, v. 4, 1916, p. 460.) 



Records large outbreak of Trachelus tabidus in 1914, with large numbers 

 of parasites. 



(55) MacGillivray, A. D. 



1917. hymen optera of Connecticut. Part 3. Tenthredinoidea. In 



Bull. 22, Sta. Geol. & Nat. Hist. Survey, Conn. 

 Page 174 : Description of Trachelus tabidus. 



(56) Howard, L. O. 



1918. report of the entomologist. In U. S. Dept. Agr. Annual Repts. 

 24 p. 



Page 7 : Record of Trachelus tabidus injuring winter wheat in Northern 

 Virginia, and throughout Maryland and Pennsylvania. 



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