132 



A Monograph of Culicidae. 



Herrick as portoricensis, but lie points out very obvious and 

 marked diiferences. I have placed it as a new species, which is 

 named after him. 



The specimens were bred from larvae taken " in the cup- 

 like bottom of a massive iron post 

 supporting one corner of a large 

 water tank. . . . Here we found 

 five large, dark brown, very spiny 

 larvae, and also remnants of cast 

 pupal skins, conspicuous for their 

 long spines, made especially pro- 

 minent by the colonies of Yorti- 

 cellae clinging to them. . . . We 

 fed the larvae entirely on Culex 

 larvae, and great numbers of the 

 latter were devoured. For example 

 three Megarhinus larvae in four days ate eighty-three large 

 Culex larvae besides many small ones just hatched from eggs, 



I \ 



Fig. 82. 



Meg a rh i i ius h errick i i(d). n . sp. 



Palp and proboscis. 



Fig. 33. 

 Larva of Megarhinus herriokii, n. sp. 



(After Glenn Herrick.) 



Head of Larva oi Megarhinus 

 herriokii. n. sp. 





Cauda] end of pupa of Megarhinus 

 herriefcii. n. sp. 



The larvae transformed to pupae on September 28th. 



The pupal stage lasted four days while that of the third 



