730 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



Fig. 6. — Wings of Tamakkha bittenella. 



TAMARRHA BITTENELLA, new species. 



Antennae dark brown with white bases. Labial palpi white, second 

 joint mottled with black. Face and head white. Thorax white with 

 four bluish black dots. Patagina white. Forewings shining white 

 with dark brown markings, which, in certain lights, appear bright 

 metallic bluish black. Entire costal edge dark brown; a black dot on 



the fold near base ; an oblique 

 oblong dot below the fold 

 followed by a round one, 

 which is in turn followed by 

 a larger oblong spot on and 

 parallel with the dorsal edge. 

 On the cell is a round black 

 dot, at the end of the cell is 

 a similar one, and in the api- 

 cal part of the wing are sev- 

 eral less regular black spots; 

 around apical edg^s a row of 

 black dots, more or less confluent. Cilia white, with base of apical part 

 golden yellow. Hind wings light silvery fuscous; at the base of the 

 costa in the males is a thin tuft of long yellow hairs. Abdomen above 

 dark golden fuscous, below silverj'^, each joint tipped with golden 

 yellow. Anterior side of all coxse golden 3^ellow, legs otherwise white 

 with black markings on the exterior side; tarsi black, each joint tipped 

 with white. 



Ala7' expanse. — 18-12 mm. 

 Habitat. — Brownsville, Texas (Barber), June. 

 Type.—C2it. No. 9772, U.S.N.M. 



Described from a good series collected at light and by sweeping. 

 The species is quite similar in general appearance and color scheme 

 to T. delUella Fernald, but is smaller and readily distinguished by the 

 dark costa and the lack of transverse lines. 



The characteristic venation is identical with that of the type. 

 There is some slight variation in the disposition of the dark mark- 

 ing in the different specimens. The figure represents one common 

 form. 



BORKHAUSENIA DETERMINATELLA (Zeller). 



Oecophora determinatella Zeller, Dyar Cat. N. Am. Lep., No. 5924. 

 Two specimens. 



Family ELACHISTID.E. 



SCYTHRIS IMPOSITELLA (Zeller). 



Scythris impositella Zeller, Dyar Cat. N. Am. Lep. , No. 61 10. 

 Three specimens. 



