554 MOSQUITOES or north AMERICA 



Psorophora posiicatus from the Antilles have a tendency to loss of white on the 

 hind tarsi. In the present form the tendency is apparently intensified, the white 

 area being still further reduced. The record from the Argentine seems doubtful. 



PSOROPHORA SAYI (Dyar & Knab). 



Culex musicus Say (not Leach), Journ. Acad. Nat. Sci. Phil., vi, 149, 1827. 



Culex musicus Say, Ent. of N. Amer., ii, 348, 18S3. 



Culex musicus Giles (not Leach), Gnats or Mosq., 276, 1900. 



Culex posticatus Coquillett (not Wiedemann), U. S. Dept. Agr., Div. Ent., Circular 



40, 2 Ser., 6, 1900. 

 Culex posticatus Howard (not Wiedemann), U. S. Dept. Agr., Dly. Ent., Bull. 25, n. s., 



20, 1900. 

 Conchyliastes musicus Howard, Mosquitoes, 155, 236, 1901. 

 Janthinosoma musica Theobald (in part), Hon. Culic, 1, 255, 1901. 

 Conchyliastes musicus Morgan, U. S. Dept. Agr., Div. Ent., Bull. 37, n. s., 113, 1902. 

 Conchyliastes musicus Dupree & Morgan, Science, n. s., xvi, 1037, 1902. 

 Janthinosoma discrucians Giles (not Walker), Gnats or Mosq., 2 ed., 339, 340, 1902. 

 Janthinosoma musica Giles (in part), Gnats or Mosq., 2 ed., 339, 340, 1902. 

 Janthinosoma musica Theobald, Mon. Culic, iil, 124, 1903. 

 Conchyliates musicus Morgan & Dupree, U. S. Dept. Agr., Div. Ent., Bull., 40, n. s., 



90, 91, 1903. 

 Janthinosoma musicum Dyar, Journ. N. Y. Ent. Soc, xii, 173, 1904. 

 Janthinosoma musica Felt, Bull. 79, N. Y. State Mus., 276, 1904. 

 Janthinosoma mexicanum Blanchard (not Culex mexicanus Bellardi), Les Mousti- 



ques, 234, 1905. 

 Janthinosoma musica Felt, Bull. 97, N. Y. State Mus., 471, 1905. 

 Janthinosoma musica Smith, N. J. Agr. Exp. Sta., Kept. Mosq., 180, 1905. 

 Janthinosoma musica CoflSn, in Shattuck, The Bahama Ids., 281, 1905. 

 Janthinosoma sayi Dyar & Knab (in part), Journ. N. Y. Ent. Soc, xlv, 181, 1906. 

 Janthinosoma posticata Coquillett (in part), U. S. Dept. Agr., Bur. Ent., Tech. Ser. 



11, 17, 1906. 

 Janthinosoma sayi Dyar & Knab, Proc. Biol. Soc. Wash., xix, 161, 1906. 

 Janthinosoma sayi Dyar, U. S. Dept. Agr., Bur. Ent., Circular 72, 3, 1906. 

 Janthinosoma sayi Theobald, Mon. Culicid., iv, 155, 1907. 

 Culex (Janthinosoma) posticata Viereck (not Wiedemann), 1st Ann. Kept. Comm. 



Health Pa., 470, 1908. 

 Aedes sayi Pazos, Anal. Acad, de Cien. med., fis. y nat. de la Habana, xlv, 420, 1908. 

 Aedes sayi Pazos, San. y Benef., ii, 46, 191, 1909. 

 Aedes sayi Thibault, Proc. Ent. Soc. Wash., xil, 17, 1910. 

 Janthinosoma sayi Theobald (In part), Mon. CuUc, v, 119, 1910. 

 Aedes sayi Morse, Ann. Rept. N. J. State Mus., 1909, 717, 1910. 



Obioinai. Description of Culex musicus : 



Tergum purplish, with lateral yellowish spots. 



Inhab. Indiana. 



Head dull honey-yellow: vertex blackish with yellowish hair: proboscis and palpi 

 black; thorax black-purple, with yellowish hair or scales: wings dusky: poisers 

 white, a little dusky at tip : tergum purple, or violaceous, with a band at base, and 

 large lateral spot on each segment of yellowish hair or scales: feet black-violaceous: 

 thighs, excepting at tip, and coxae whitish, sericeous: tarsi, two terminal joints of 

 the posterior pair white. 



Length more than one-fifth of an inch. 



Oeminai, Descbiption of Janthinosoma sayi (Dyar & Knab): 



Culex musicus Say (not Leach), Proc. acad. nat. sci. Phil., vl, 149, 1827. 

 Janthinosoma mexicana Blanchard, Les Moustlques, 234, 1905. 



The larva is found In temporary rain puddles and develops rapidly, as do all of 

 this genus. It occurs along the Atlantic seaboard as far North as Massachusetts, but 

 is common only further South. The senior author met with it In abundance at 

 Tampa, Florida. The junior author collected It at Santa Lucrecia, Almoloya and 

 Tehuantepec, Mexico; Sonsonate, Salvador; Corlnto, Nicaragua; Puntarenas and 

 Port LImon, Costa Rica. Blanchard says that musicus Say (preoccupied) Is surely 

 the same as mexicanus Bellardi; but Coquillett has identified as mexicana another 

 species, which he refers to " Culex " as It differs In scale structure. We therefore 

 propose the new name sayi for our familiar species. 



