CHEUMES PlNt. 41 



Coccus-like in form. Dark - brown, plentifully 

 furnished with long silky filaments, which take a 

 corkscrew form as they issue from the body-pores. 

 When denuded, the insect shows the body deeply 

 ringed, and marked with spots of varying size down the 

 back and the sides. The antennaB are very small, and 

 they are usually inconspicuously folded under the 

 head. They are very rudimentary in form, and 

 only contain from three to four joints. The queen 

 Aphis occurs in May, and about June is surrounded 

 with her pedunculated eggs, which are yellow or 

 brown, and well covered from the weather by cottony 

 flocks. 



In 1874 they were taken plentifully at Haslemere on 

 Pinus sylvestris, and in December of the same year, 

 when the thermometer marked 21° Fakr., the apterous 

 mothers were found congregated in knots of from ten 

 to fifteen at the bases of the leaf-tufts of Pinus insignis. 

 They were then very inactive, and usually attended by 

 the grub of a Scymnus, which daily devoured some of 

 them, leaving comparatively few to pass the winter. 

 Like other Ohermes, they were anchored to the buds 

 by long rostral setae, more than twice the length of 

 the insects themselves. 



Koch found, at the Botanical Gardens at Erlangen, 

 a Chermes which, from the character of the wing- 

 veining, he put into a new genus. He called this 

 insect Anisophleba pini. They were first noticed in 

 the greenhouses on a variety of the Scotch fir called 

 Pinus siberica, but the insects spread beyond the 

 greenhouses to other species of Pinus, amongst which 

 he names Pinus uliginosa. 



In a general manner his description agrees with 

 that above given; but his specimens seem to have 

 been brighter in colour, and the legs were ringed with 

 yellow near the femoral joints. 



I have not been able to secure the winged form of 

 Chermes pini ; but Koch says that his pupae had large 

 and smooth thoracic lobes, with olive-brown wing cases. 



