36 PROCEEDINGS OF THE NATIONAL MUSEUM vol.71 



Entirely similar to squajivulella in color and markings and in the 

 disparity of the sexes, but differing in details of the genitalia. We 

 take qulriguella from Guatemala and Costa Rica to be the female 

 and prestonelUi from Mexico the male of one species. 



Expanse. — Male, 11 mm.; female, 17-18 mm. 



Male genitalia as in squaTnulellu, except with broader costal hook 

 on left harpe. Figured from type of prestonella. 



Female genitalia at once distinguished by the large thornlike signa 

 of bursa. Figured from type of quinguella. 



Type. — In National Collection. 



Type localities. — Quirigua, Guatemala {quiriguella) ; Venadio^ 

 Sinoloa, Mexico {prestonella) . 



HAIMBACHIA DUMPTALIS Schaus 



Figures 41, 69 



Eaimhachia dumptalis, Schaus, Proc. Ent. Soc. Washington, vol. 24, 1922, 

 p. 137. 



Fore wing narrow, crambiform, the markings obscure. The sexes 

 are similar in size. 



Expanse. — 15 mm. 



Male genitalia as in placideUii, except that projecting basal costal 

 lobe of harpe is semicircular rather than triangular. 



Female genitalia similar to those of squamulella^ but with ductus 

 bursae less chitinized. Bursa with two signa developed as minute^ 

 scobinate patches. 



Genitalia figured from specimens from Cayuga, Guatemala. 



We have two males, including the type, and two females, all from 

 Guatemala (Schaus and Barnes). 



Type. — In National Collection. 



Type locality. — Cayuga, Guatemala. 



HAIMBACHIA MARONIELLA, new species 



Figures 35, 70 



Entirely similar in color and size to dumptalis Schaus, but differ- 

 ing in locality and genital structure. 



The male genitalia are distinguished by the tapering vinculum 

 with rather narrow, straight posterior margin; and the female by the 

 unforked (scarcely incur vate) apex of the tongue from the 8th 

 segment collar ; signa developed as two small scobinate patches. 



Genitalia figured from type and paratype. 



Three males and a female are before us, all from the type locality, 

 August, 1904 (W. Schaus). 



Type.—Q^i. No. 29435, U.S.N.M. 



Type locality. — " Sixty miles up the Maroni River," French 

 Guiana. 



