Dec, 1906.] Dyar and Knab : Larwe of Culicid^. 217 



ravine. The adults were named "Melanoconion humilis Theob.' ' by 

 Mr. Coquillett, but we see no reason to accept this determination . 

 M. humilis was described from Sao Paulo, Brazil. 

 Culex elevator, new species. Fig. 43. 

 Antennae with the tuft beyond the middle, pale at base; head hairs 

 single- body hairy; two lateral hairs on the second abdominal seg- 

 ment, 'three on the third to sixth. Air tube 6x1, nearly straight 

 with 'very long pecten; five tufts on the posterior margin; anal gills 



short. 



Taken by the junior author in a pool of clear water containing veg- 

 etable debris at the head of a small stream two miles west of Port 

 Limon, Costa Rica. The adults were not bred. 



Culex educator, new species. Fig. 44. 

 Antennae with the tuft at outer third, dark ; head hairs single ; body 

 coarsely hairy ; lateral hairs in twos on the second segment, in threes 

 on the third to sixth; subdorsal hairs long, stellate ; tracheae narrow. 

 Air tube 6 x 1, a little tapered, pecten moderate; five tufts on the pos- 

 terior margin decreasing to tip. 



Collected by the junior author in an old stream bed disconnected 



from the stream, containing fish, but the larvae in reeds at the edge, 



Rio Aranjuez, near Puntarenas, Costa Rica. The adults were named 



"Melanoconion atratus Theob." by Mr. Coquillett. 



Culex conspirator, new species. Fig. 45. 



As in the preceding species, but differentiated by the characters 



given in the table. 



Collected by the junior author at Almoloya, Oaxaca, Mexico, in a 

 laree pot hole full of clear water and in a shallow pool frequented by 

 cattle at Las Loras near Puntarenas, Costa Rica. The specimens 

 were named "Melanoconion atratus Theob.' ' 

 Culex territans Walker. 



Culex territans Walker, Ins. Saund., Dipt., i, 428, 1856. 



Culex territans Dyar, Journ. N. Y. ent. soc, ix, 178, 1901. 



Cutex territans Smith, Ent. news, xm, 302, 1902. 



Culex territans Dyar, Proc. ent. soc. Wash., v, 48, 142, 1903. 



Culex territans Dyar, Science, n. s., xvi, 672, 1902. 



Cutex territans Dyar, Proc. ent. soc. Wash., vi, 40, 1904- 



Culex territans Smith, Bull. 171, N. J. Agr. exp. Sta., 24, 1904. 



Culex territans Felt, Bull. 79, N. Y. Sta. Mus., 307, 1904- 



