. A manual of dangerous insects likely to be introduced in the United States through importations. Fig. 38.— Pine weevil {Cryplorliynchus brandisi): Injury to Pinus longi-folia. (Stebbing.) Pityogenes lipperti Henschel; Dalmatia; Aleppo sampsoni Stebbing; India; Pinus excelsa. INSECTS OF CONIFERS (pINe), 75 Ipidae—Continued. Pityophthorus glabratus EichhofI; Europe; Pinus silvestris. Pityophthorus lichtensleini Ratzeburg; Europe; Pinus silvestris, P. strobus, P. pinaster. Polygraphus grandiclava Thomson; Europe; Pinus strobus. Polygraphus trenchi Stebbing; India; Pinus gerar
. A manual of dangerous insects likely to be introduced in the United States through importations. Fig. 38.— Pine weevil {Cryplorliynchus brandisi): Injury to Pinus longi-folia. (Stebbing.) Pityogenes lipperti Henschel; Dalmatia; Aleppo sampsoni Stebbing; India; Pinus excelsa. INSECTS OF CONIFERS (pINe), 75 Ipidae—Continued. Pityophthorus glabratus EichhofI; Europe; Pinus silvestris. Pityophthorus lichtensleini Ratzeburg; Europe; Pinus silvestris, P. strobus, P. pinaster. Polygraphus grandiclava Thomson; Europe; Pinus strobus. Polygraphus trenchi Stebbing; India; Pinus gerardiana. (See text fig. 39, and pi. XI, figs, la-lf.) Polygraphus nigra Stebbing; India; Pinus eicelsa. Polygraphus himalayensis Stebbing; India; Pinus longifolia. Polygraphus longifolia Stebbing; India; Pinus longifolia. Xyleborus eurygraphus Ratzeburg; Fig. 39.—Pine bark beetle (Polygraphus trenchi): Galleries in Pinus gerardiana. fStebbing.) Piatypodidae. Crossotarsus fairmairei Chapuis; India; bores in wood of Pinus biformis Chapuis; India; infests Pinus longifolia. (See pi. XV.) Semiothiia liturala Clm.; Europe; attacks the Lasiocampa quercus Linnaeus; Germany; attacks Agrotis tritici Linnaeus; Europe; injures roots of seedlings. 76 A MANUAL OF DANGEROUS INSECTS. Pyralldae. Dioryctria splendidella H. Sch.; Germany; attacks cones, shoots, and elutella Hiibner; Germany; attacks seeds and cones . Psychldae. Clania crameri Westwood; India; attacks needles of Pinus longifolia.
Size: 1451px × 1722px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin
