194 inse:cutor insciti^ menstruus 



wing pale brownish, darker shaded on the costal region, the 

 veins narrowly dark there ; traces of terminal dots at the inter- 

 spaces. Expanse, male, 35 mm. 



The female is marked like the male, except that the two 

 outer lines are absent ; the intervenular lines are darker than 

 those on the veins, this character being present also in the 

 male, but less pronounced. Hind wing creamy white, with 

 traces of dark costal veins and terminal dots. Expanse, 43 mm. 



Bred from larvae in canes of Tripsacum laxum at Miami, 

 Florida; male, April 20, 1919 (A. C. Mason), female, Feb- 

 ruary 12, 1921 (W. B. Wood), three males, September 27, 

 1921 (W. B. Wood). The plants of Tripsacum were origi- 

 nally brought from Guatemala ; but as they were grown in 

 quarantine from June to October, 1916, without sign of in- 

 festation, before being released for planting, it is not certain 

 that the D. tripsacicola originated in Guatemala. 



Type, No. 24900, U. S. Nat. Mus. 



Mr. Carl Heinrich has kindly made a mount of the male 

 hypopygium, and reports that the structure is of the type of 

 seacolella Dyar, rather than that of saccharalis Fab., possess- 

 ing dififerential characters from both. The distinctness of the 

 species is indicated, however, without this information. 



NOTE ON CULEX DECLARATOR D. & K. 



(Dipt era, Culicida) 



By HARRISON G. DYAR 



Dr. and Mrs. Bonne stated in this magazine (Ins. Ins. Mens., 

 ix, 21, 1921) that Culex bilineatus Theob. and Culex virgultus 

 Theob. were identical with Culex declarator D. & Ki., and I 

 arranged the synonymy to correspond with this statement 

 (Ins. Ins. Mens., ix, 29, 1921). It appears, however, that this 

 is incorrect. Mr. F. W. Edwards informs me that the Bra- 

 zilian form is distinct, and I suppose that Dr. and Mrs. Bonne 

 may have been depending upon memory for the characters of 

 declarator. In any case the distinctions are marked. Accord- 



