479 



diapause in their holes, the openings of whicli were closed with pieces 

 of stems of Poa hulhosa mixed with web. The caterpillars remained 

 in a state of diapause from May to July. The appearance of this pest 

 is closely connected with the yield of Poa hnlbosa, which does not 

 produce a crop every year. The various stages of the insect are 

 described and figured. The imagines began to appear on 1st August. 

 Jn captivity the females oviposited in the earth, and this probably 

 occurs also in Nature. As remedies, trenches about 14-21 inches 

 deep and 10-14 inches wide should be dug immediately after sowing, 

 in the latter half of April, on the edges of wheat fields, where they 

 adjoin virgin soil over-grov\ai with Poa hulhosa. The trenches must 

 be inspected every morning and the caterpillars destroyed, otherwise 

 they may burrow into the bottoms of the trenches. 



ZoLOTAREvsKY (B. N.). npeflBapMTenbHbiM OTHeiT* pa6oTax"b no 



dHTOMOnorJH B"b 1914 r. [Preliminary report on the work on 

 Entomology in 1914.] — Published by the Stavropol-Caucasian 

 Agricultural Experimental Station of the Stavropol Municipal 

 Authority, Stavropol, 1915, 12 pp. 



This is the first report of the Entomological Branch, estabhshed in 

 1914 at the Agricultural Experiment Station of the MunicipaUty of 

 Stavropol, and it contains the following list of insects found in the area 

 inspected during the first year. Thysanoptera : Thrips were found 

 in considerable numbers on winter-sown wheat ; Hemiptera . Sehirus 

 sexmaculatus, Ramb., on field boundaries, lucerne, sown grasses ; 

 Eurygaster austriacus, Schrk., on barley ; Euryg aster integriceps, Put., 

 common on winter-sown wheat and barley ; the first egg-masses were 

 found on 30th May ; larvae of various stages and young adults were 

 found on summer sown w^heat on 27th July ; Aelia acuminata, L., 

 and A. rostrata. Boh., on wheat and barley, and on wild grasses ; 

 Aelia sibirica, Reut., on winter-sown barley ; Dolycoris baccarum, L., 

 on lucerne and on summer wheat ; Eurydema festivnm, L., var. 

 decoratmn, H.S., and E. oleraceum, L., on hay ; Syroniastis {Mesocenis) 

 marginatus, L., on field boundaries, summer wheat, vetches, and oats ; 

 Coreus {Coriomeris) denticulatus, Scop., on hay ; Rhopalus {Brachy- 

 carenus) tigrinus, Schill., on summer wheat ; Myrmus miriformis, 

 FaU., on cut grasses ; Piocoris erythrocephahis, Lep., on hay ; Oxy- 

 carenus collaris, M.R., on cut grasses ; Scolopostethus affinis. Schill., 

 on sammer barley, lucerne and summer wheat ; Tingis {Tropidochila) 

 jnlosa, Humm., on winter barley ; Nahis (Reduviolus) ferus, L., on 

 wheat, lucerne and harvested hay. Addphocoris lineo'atus, Goeze, 

 has done great damage to lucerne and was also found on harvested 

 hay and on buckwheat ; Lygus pratensis, L., on summer and winter 

 wheat, oats, barley, lucerne, hnseed, and on vetches with oats ; 

 Poeciloscytiis cognatus, Fieb., on lucerne, summer wheat and harvested 

 hay; Notostira erratica, L., on hay and summer barley; Trigonotyliis 

 ruficornis, GeofEr., was noticed in considerable numbers on cultivated 

 and wild grasses, and in July was taken on summer wheat and harvested 

 hay; Miris ferrugatus, Fall., and Orthocephalus vittipennis, H. S., on 

 harvested hay ; Phgiognaihus chrysanthenii, Wolfi, on harvested 

 h IV and lucerne ; P. arbmtorum, F.. on summer wheat and on 



