10 



PEINCIPAL HOUSEHOLD INSECTS. 



The writer, in the course of certain observations, lias carried C.imn- 

 gens through approximately two generations in the early part of the 

 season. It is strange that recent and definite observations upon accu- 





Fig. 1. — Culex pungem : a, female, from side : h, male, from above; c, front tarsus of same; d, middle 

 tarsus; e, bind tarsus; /, genitalia of same; ^, scales from hind border of wing; A, scales from disk 

 of wing— enlarged (original). 



rately determined species of many of our commonest insects have not 

 been published. This is mainly due to the fact that most entomologists 

 have a way of saving time by following the observations of older writers. 



