X EXPLANATION OF PLATES 



Plate 144. Mental Plates of Larvae: (647) Aedes knabi. (648) Aedes walkeri. (649) 

 Aedes albonotata. (650) Aedes busckii. (651) Stegoconops lucifer. (652) 

 Stegoconops equinus. (653) Bancroftia fascipes. (654) Bancroftia 

 signifer. (655) Uranotsenia geometrica. (656) Uranotaenia coatza- 

 coalcos. (657) Megarhinus septentrionalis. (658) The same, second 

 plate. (659) The same, third plate. (660) Anopheles grabhamii. (661) 

 Anopheles eisenl. (662) Anopheles pseudopunctipennis. (663) Ano- 

 pheles crucians. (664) Anopheles punctipennis. (665) Anopheles quad- 

 rimaculatus. (666) Coelodiazesis barberi. 



Plate 145. Eggs: (667) Aedes atropalpus. (668) Aedes calopus. (669) Bancroftia 

 signifer. 



Plate 146. Eggs: (670) Psorophora ciliata. (671) Psorophora howardii. (672) 

 Psorophora Columbia;. (673) Psorophora horridus. (674) Psorophora 

 discolor. (675) Psorophora sayi. (676) Aedes triseriatus. (677) Aedes 

 sylvestris. (678) Aedes taeniorhynchus. (679) Aedes sollici tans. (680) 

 Aedes innrmatus. (681) Aedes tormentor. (682) Aedes canadensis. 



Plate 147. Eggs: (683) Aedes grossbecki. (684) Aedes calopus. (685) Mansoniaper- 

 turbans. (686) Culex pipiens. (687) Culex salinarius. (688) Culex 

 territans. (689) Culex erraticus. (690) Culex restuans. (691) Culiseta 

 inornatus. (692) The same, single egg. (693) Anopheles punctipennis, 

 dorsal yiew. (694) The same, ventral view. (695) Anopheles quadri- 

 maculatus, ventral view. (696) Anopheles crucians, ventral view. 



Plate 148. Pups: (697) Wyeomyia smithii. (698) Culex territans. (699) Wyeomyia 

 circumcincta. (700) Culex restuans. (701) Culex pipiens. (702) 

 Aedes sylvestris. 



Plate 149. Pups: (703) Aedes fuscus. (704) Psorophora ciliata. (705) Psorophora 

 sayi. (706) Psorophora Columbia?. (707) Bancroftia signifer. (708) 

 Aedes triseriatus. 



Plate 150. Pupa;: (709) Anopheles punctipennis. (710) Aedes mediovittata. (711) 

 Uranotasnia sapphirinus. (712) Aedes atropalpus. (713) Aedes calopus. 



