32 INSECUTOR INSClTliE MENSTRUUS 



THE SWARMING OF CULEX QUINQUEFASCIATUS 



SAY 



(Diptera, Culicida) 

 By HARRISON G. DYAR 



In the monograph (Howard, Dyar & Knab, Mosq. No. & 

 Cent. Am. & W. I., iii, 355, 1915) we quote Schwarz and 

 Goeldi on the swarming of this species, but neither author 

 says anything about the attraction of the males to the human 

 person. In my experience it is pronounced, as much so as 

 with Aedes aegypti or Aedes varipalpus. At Kerrville, Texas, 

 the hotel had a double porch well shaded with lattice and vines. 

 In the daytime, on the upper porch, males of Aedes aegypti 

 swarmed about one who sat there for some time, and in the 

 evening, on the lower porch, the same phenomenon was ob- 

 served, only the species concerned was Cidex quinquefasciatus. 

 It was long after sunset, quite dark in fact, a small electric 

 light was burning at the entrance to the porch. Sitting in a 

 chair a little distance back from the light, after some time the 

 male Culex began to gather, and continued swarming about 

 head and shoulders in the dusk as long as one wished to stay. 



RING-LEGGED CULEX IN TEXAS 



(Diptera, Cttlicidce) 

 By HARRISON G. DYAR 



The following species of the ring-legged or tarsalis group 

 of Cidex occur in Texas. 



Culex (Culex) tarsalis Coquillett. 



Culex tarsalis Coquillett, Can. Ent., xxviii, 43, 1896. 



Culex zinllisfoiii Giles, Handb. Gn. or Mosq., 281, 1900. 



Culex affinis Adams (not Stephens), Kans. Univ. Bull., ii, 25. 



1903. 

 Culex kelloggii Theobald, Can. Ent., xxxv, 211, 1903. 

 Cidex pens Speiser, Insektenborse, xxi, 148, 1904. 



Undoubted specimens of this species are before me, pro- 

 boscis, legs and mesonotum fully ornamented. Camp Travis, 

 Texas, March 2G, 1918 (D. L. Van Dine). 



