68 SMITHSOXIAX MISCELLANEOUS COLLECTIONS VOL. $2 



The species was also bred by jNIr. Jennings and the writer on 

 Taboga Island from larvae taken in a boat filled with rain-water. 



CULEX CONSPIRATOR Dyar and Knab 



Bred together with dilex Ic.princei from grassy edges of a slow- 

 running stream near Pedro Miguel. 



CULEX LACTATOR Dyar and Knab 



Bred from a barrel, from bamboo, and from a stagnant pool near 

 Tabernilla ; from a metal washtub and from recently flooded meadow 

 at Las Cascadas ; from a tin can and from a rotten banana trunk in 

 the black swamp near Lion Hill ; from a hollow tree-stump in an 

 open field near Gatun, and b}- ^Ir. Jennings from a water-tub used 

 for cattle on Taboga Island. 



CULEX EXTRICATOR Dyar and Knab 



The larvse of this species were taken in crab-holes near the wire- 

 less telegraph station at Colon, and the species is clearly closely asso- 

 ciated with these crabs, the adults remaining in the holes during day- 

 time like those of the genus Deinoceritcs. A large series was bred, 

 but neither adults nor larvae were obtained in other localities. 



This species was described from the larvae collected and bred by 

 the writer two years ago in Cedros, Trinidad. It is one of the sev- 

 eral convincing examples justifying Messrs. Dyar and Knab in their 

 classification of the mosquitoes, even to the extent of erecting new 

 species on the immature stages alone. The closer study of the adults 

 proved the distinctness of this species from the composite species 

 "pipiens," and now the study of the habits of the species further em- 

 phasizes the correctness of the deduction from larval characters. 



This species also illustrates the importance of exact observations 

 of superficially unimportant details. The Trinidad specimens were 

 bred from larvcC found in a small bucket used for holding live crabs ; 

 it was, in other words, an artificial crab-hole and thereby alone at- 

 tractive as a place to oviposit for this crab-hole-inhabiting species. 



The importance for practical work on the Canal Zone of definitely 

 ascertaining, by further observations, whether this species sucks 

 blood from nian or not, has been commented upon under the genus 

 Dcvioccritcs. 



CULEX JUBILATOR Dyar and Knab 



Bred by Mr. A. ii. Jennings from larv;e taken in an old tub in a 

 pasture and from a slow-running stream on Taboga Island. Neither 



