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



(50) Uvakov, B. P. 



1914. EEPOET OF THE ENTOMOLOGICAL BUEEAU OF STAVBOPOL FOE 1913. Ill 



Dept. Agr. Centr. Bd. Land Adniin. 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 Cephns pygmaeus as differences in larvae are still 



unknown. 



(51) Coeey, 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) Boeodin, D. 



1915. CEPHUS pygmaeus l., on the westeen expeeimental field of 



THE AGBICULTUEAL EXPEEIMENT STATION OF STAVBOPOL, CAUCASUS. 



In Husbandry, Kiev, p. 876-883. (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) ZOLOTAEEVSKY, B. N. 



1915. PEELIMINAEY BEPOET ON THE WOEK ON ENTOMOLOGY IN 1914. Itl 



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

 Appl. Ent., ser. A, v. 3, 1915. p. 47&-480.) 



Records Trachelus tabidus as appearing later than Cephus pygmaeus, 

 and chiefly found on summer-sown crops. 



<54) Uvabov, B. P., & Glazunov, V. A. 



1916. BEPOET ON THE WOEK OF THE ENTOMOLOGICAL BUEEAU OF STAVBOPOL 



fob 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 Tracheitis tabidus in 1914, with large numbers 

 of parasites. 



(55) MacGlllivbay, A. D. 



1917. HYMENOPTEEA of Connecticut. Part 3. Tenthredinoidea. In 



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

 Page 174 : Description of Trahelus tabidus. 



(56) Howard, L. O. 



1918. bepobt 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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