Dec, 1906.] Dvar and Knab : Larvae of Culicid^. 215 



from Victoria, Texas (Hinds), Baton Rouge, La. (Dupree), and 

 Washington, D. C. (Dyar). The specimens were uniformly deter- 

 mined as "Culex pipiens L," by Mr. Coquillett. 



Concerning the supposed transference of Filaria by this species, we 

 presume it is not necessary for it to be strictly conspecific with the 

 Indian fatigans in order to accomplish it, for a number of not closely 

 allied mosquitoes appear to be regarded as carrying agents (compare 

 Blanchard, Les Moustiques, 536, 1905). We would observe that the 

 Culex skusei which Col. Giles regarded as the transferring agent of 

 Filaria is a good species, not a synonym of fatigans as stated by Blan- 

 chard, nor even a variety of it as Theobald makes it, to judge from the 

 published figure of the larva. We do not know skusei in America. 



Culex coronator, new species. Fig. 38. 



Antennae with the tuft slightly beyond the middle, pale ; head hairs, 

 the upper in four or five, the lower in three or four, rarely five ; body 

 hairy. Air tube long, 9x1, the pecten reaching two-fifths, a crown 

 of coarse spikes before apex, usually well developed, sometimes 

 nearly obsolete. Anal gills moderate. 



An abundant species throughout the tropics, apparently absent 

 from the islands. Mr. Busck took it in a pool in the woods at St. 

 Joseph, Trinidad, in a lagoon pool on the South side of Trinidad, in a 

 bucket with live crabs and an open ditch in the middle of the village, 

 Cedros, Trinidad. The junior author found this the commonest 

 species in Mexico and Central America. The localities are : puddles in 

 street, shallow puddle on outskirt, pools in a stream, Cordoba ; muddy 

 road way along railroad tracks, Tehuantepec ; puddles, etc. ,Salina Cruz ; 

 tanks at Acapulco, Mexico; puddles, San Josede Guatemala; ditch, 

 San Salvador; hole in root of tree, Sonsonate, Salvador; shallow pool, 

 Puntarenas, large muddy puddle and barrel of clear water, San Jose, 

 Costa Rica; puddles in freshly dug railroad ditch, Port Limon,Cos\ 

 Rica. This is a most inoffensive mosquito. Although breeding i 

 myriads in all roadside puddles it seems not to bite and does not ente\ 

 houses. The adults were all named "Culex secutor Theob." by Mr. 

 Coquillett, except one of Mr. Busck's, which was called "pipiens" 

 (it may have been in bad condition). To the junior author's speci- 

 mens he added a query and the note "also janitor? and tarsalis?" 



