INSECTS OP OONIPERS (pINe). 



75 



Ipidse— Continued. 



PityophthoTv,s glabratus Eichhoff; Europe; Pinus silvestris. 



Pityophthorus lichtenstcini Ratzeburg; Europe; Pinm silvestris, P. strobus, P. pinaster. 

 ' PolygrapUus grandiclava Thomson; Europe; Pinus strobus. 

 Polygraphus trenchi Stebbing; India; Pinus gerardiana. (See text fig. 39, and pi. XI, figs, \a-le.) 

 Polygraphus nigra Stebbing; India; Pinus eicelsa. 

 Polygraphus liimalayensis Stebbing; India; Pinus longifolia. 

 Polygraphus longifolia Stebbing; India; Pinus longifolia. 

 Xyleborus eurygraphus Ratzeburg; Europe. 



Fig. 39. — Pine bark beetle (Polygraphus trenchi): Galleries in Pinus grrardiana. (Stebbing.) 



Platypodidae. 



Crossotarsus fairmairei Chapuis; India; bores in wood of Pinus eicelsa. 

 Platypus biformis Chapuis; India; infests Pinus longifolia. (See pi. XV.) 



LEPIDOPTERA. 

 Geometridae. 



Semiothisa liturata Clm.; Europe; attacks the needles. 

 Lasiocampidse. 



Lasiocampa quercus Linnteus; Germany; attacks needles. 

 Noctuidae. 



Agrotis tritici Linnaeus: Europe; injures roots of seedlings. 



