64 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 52 



AEDES NIGRICANS Ccquillett 



The types of this species in the U. S. National Museum came from 

 Panama (J. W. Ross, collector). No other record of its capture has 

 been made and I did not meet with it. 



AEDES LITHCECETOR Dyar and Knab 



Bred from larvae in a pot-hole in a rock at the edge of the upper 

 Chagres River between Allehuela and San Juan. It is probable that 

 the species breeds only in rock-holes, as in the case of the North 

 American Acdcs atropalpiis Coq. 



AEDES INSOLITA Coquillett 



Bred from larvae in hollow trees in two localities along the upper 

 Chagres River 'far from civilization. The larvse are known to be 

 normally inhabitants of hollow trees. 



AEDES SERRATUS Theobald 



Bred by Mr. A. H. Jennings from a pool near Pedro Miguel. 



Genus H^MAGOGUS Williston 

 H^MAGOGUS REGALIS Dyar and Knab 



The larvje of this brilliant blue mosquito were taken in bamboo- 

 joints and in several tree-holes near Tabernilla. One of these was a 

 mere knot-hole holding only a spoonful of water. It was also bred 

 from very foul water in old French machinery and from a wooden 

 box near a house at Las Cascadas ; also from a pot-hole in a rock, 

 inhabited by a crab, along a small stream on Taboga Island, and 

 from the rotten center of a cut banana trunk, filled with slimy juice, 

 near Lion Hill. 



The short-tubed larva reminds one of that of Stcgoinyia by its 

 slow, snaky movements. 



H^MAGOGUS SPLENDENS Dyar and Knab 



Bred from Stcgoiiiyia-Yike larvae in a tree-hole along the upper 

 Chagres River, far from civilization; also from bamboo- joints and 

 tree-holes near Tabernilla. 



H-ffiMAGOGUS AFFIRMATUS Dyar and Knab 



Adults, collected as they came to bite in the palm-shaded black 

 swamp near Lion Hill. 



