ENTOMOLOGICAL CABLNET. 



PSOCUS BIPUNCTATUS. Latr. 

 Hemerobius bipunctatus. Linne. 



Variegated with yellow and black : head above the 

 clypeus blackish : superior icings with a small costal 

 mark, and another on the opposite margin black ; 

 the interjected cords blackish ; stigma white, with a 

 black spot. 



Expansion of the wings 4 lines. 



Inhabits the trunks of trees. 



To the family Psocidce belongs the white ants, 

 whose history we beg to copy from Messrs. Kirby 

 and Spence. 



" Their societies consist of five different descrip- 

 tions of individuals — workers or larvae — nymphs or 

 pupae — neuters or soldiers — males, and females. 



"1, The workers or larvae, answering to the hy- 

 menopterous neuters, are the most numerous and 

 at the same time most active part of the community ; 

 upon whom devolves the office of erecting and re- 

 pairing the buildings, collecting provision, attending 

 upon the female, conveying the eggs when laid to 

 what Smeathman calls the nurseries, and feeding 

 the young larvae till they are old enough to take 

 care of themselves. They are distinguished from 

 the soldiers by their diminutive size, by their round 

 heads and shorter mandibles. 



" 2. The nymphs or pupae. These were not no- 

 ticed by Smeathman, who mistook the neuters for 

 them : — they differ in nothing from the larvae, and 

 probably are equally active, except that they have 

 rudiments of wings, or rather the wings folded up 

 in cases (Pterothecce). They were first observed by 

 Latrielle ; nor did they escape the author of the MS. 

 24-2 54 



