300 FOREST ENTOMOLOGY. 



Prior to hatching from the eggs, the eyes of the larvae are very 

 conspicuous. When first hatched they are of a yellow colour, with 

 scarlet eyes and white antennae and legs. It is said they moult four 

 times before assuming the " pupal " stage. They are of a long oval 

 form, of a gamboge-yellow, becoming darker with age, and variegated 

 on the abdomen. The legs are short. 



Fig. •ISS. — lVingrd fonii of Pliylloxera punctata. 



Fig. 283 is a representation of the winged form. 



My observations of this insect were made in Cheshire, where it 

 was quite harmful. I have never found it in north :N"orthumberland,i 

 but it is often met with in the south of the county, just on the borders 

 of Durham. 



References to Literature consulted. 



Bonier, Carl. Eine Monographische Studie iiber die Chermiden. 



Buckton, G. B. Monograph of British Aphides. Ray Society. 



Burdon. Some Critical Observations on the European Species of the Genus 



Chermes. Journal of Economic Biology. 

 Judeich und Nitsche. Forstinsekteukunde. 



M'Dougall, R. Stewart. The Genus Chermes, Board of Agric. Jour., Sept. 1909. 

 Niisslin. Leitfaden der Forstinsektenkunde. 

 Patch, Edith M. Chermes of Maine Conifers. 



' I have recently found it at Pauperhaugh, Northumberland. 



