147 



Swarms of RJiizotrogus solstitMis, L., occurred in May and the middle 

 of July. Serica hrunnea, L., occurred in very large swarms in June 

 1915, and defoliated all kinds of trees and bushes. PhyUopertka 

 Jiorticola, L., damaged the leaves and young fruit of fruit trees, es- 

 pecially in the vicinity of Kalmar, where it appeared in enormous 

 numbers in 1914, swarming throughout the month of June. Cetonia 

 aurata, L., and possibly also C. floricola, Hrbst., were recorded as 

 injuring the young ears of rye. Meligethes aeneus, F., damaged seed- 

 ling plants of tm'nips and cabbage all over the country. Agriotes 

 lineatus, L., injured sugar beet, oats and barley, from 40 to 80 per cent. 

 of the plants being killed on himdreds of acres. Anohium strkdum, 

 Oliv., caused injury in buildings. Sitodrepa panicea, L., injured the 

 seeds of tomatoes. Ptinus fur, L., P. raptor, Niptus hololeucus, 

 Fald., Tenehrio molitor, L., and Triholimn imvale, F., have been reported 

 doing damage to grain, etc. Callidium violaceum, L., occurred in 

 newly built houses. PhyUotreta nemorum, L., Haltica oleracea, L., 

 and Psylliodes chrysocephala; L., were all numerous during 1914 and 

 1915, whereas in 1916, when the rainfall was very great, only isolated 

 attacks were reported. PhyUotreta vittula, Redt., injured wheat in 

 the latter half of June. Batophila rubi, Payk., damaged raspberries ; 

 Psylliodes chrysocephala, L., and PhyUotreta nigripes, F., severely 

 injured cabbages ; Chaetocnema concimm, Marsh., occurred in great 

 nmnbers on rhubarb ; Phytodecta viminalis, L., and PhyUodecta 

 vitellinae, L., occurred in plantations of basket willows ; Phaeion 

 cochlear iae, L., injured horse-radish. Galeruca tanaceti, L., devas- 

 tated turnips in some localities on Gotland in 1915-16, appearing at 

 the beginning of July in miUions and completely defoliating the plants ; 

 in 1916 this beetle also attacked turnips, potatoes, clover and various 

 weeds. Cassida nebulosa, L., injured cabbage and turnips. 



The following bark-beetles were recorded : Scolytus rugulosus, 

 Ratz., on apple trees, Myelophilus piniperda, L., M. minor, Htg., 

 Doidroctonus niicans, Kug., Hylasfes ojmcus, Er., H. paUiatus, Gyll., 

 H. glabratus, Zett., Pityogenes chalcographus, L., P. bidentatus, Hbst., 

 P. quadridens, Htg., Ips sexdentatus, Boern., /. typographus, L., 

 /. acuminatus, Gyll., IjJS proximus, Eichh., Anisandrus dispar, F., 

 and Xyloterus lineatus, Oliv. 



Bruchus rufimanus, Boh., occurred in horse-beans ; Byctiscus 

 betulae, L., injured the leaves of pear and plum trees in many 

 places, and Rhynchites betulae, L., attacked young birches {Betula 

 verrucosa and B. odorata) at the beginning of the smnnier of 1916 

 to such an extent that the trees appeared to have been scorched 

 by fire. Apion apricans, Hrbst., and possibly also A. flavipes, Payk., 

 injured the shoots of young spruces ; Sitones lineatus, L., damaged 

 peas, beans, raspberries, etc. Hylobius abietis, L., injured young 

 plants of spruce and pine from April to beginning of Jime. Larvae 

 of Otiorrhynchus sulcaius, ¥., were reported injuring raspberries, and 

 0. raucus, F., gnawed the bark of the young shoots of currants, hazel 

 and dwarf fruit trees. 0. singularis, L., {picipes, F.) has not been 

 previously recorded in Sweden, but in 1912 injuries caused by this 

 weevil were reported on currants and other j)lants. Phyllobius pyri, 

 L., and P. maculicornis, Germ., were very common in 1912 in 

 the southern part of the country. Fruit trees were much injured, 

 in May and the first half of June, especially pears, the buds of many 



