24 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol.47. 



as the forewings; cost a straight; apex blunt; termen and dorsum 

 evenl}' rounded; 8 veins: 3 and 4 stalked; 5 parallel; 6 and 7 sepa- 

 rate and parallel. Posterior tibiae hairy above. 



COSTOMA BASmOSELLA, new species. 



Labial palpi, face, and head bright yellow. Thorax purplish brown, 

 edged laterally with pink; patagina pLnk with brown base and yellow 

 tip. Base of the forewings light pink, on the costa yellow; this bright 

 coloredbase issharply limited outwardly by a narrow, blackish brown, 

 transverse fascia; beyond this fascia the wing is dark olive brown 

 with the costal edge from basal fourth outwardly, broadly yellow, and 

 with the entire apical, terminal, and dorsal edge narrowly yellow. 

 Hindwings dark brownish fuscous. Abdomen blackish above; 

 underside and anal tuft yellow. Legs yellow with dark brown tarsal 

 annulations. 



Alar expanse. — 31 mm. 



Eahitat. — Trinidad River, Panama, June. 



Type-specimen.— Cut. No. 16683, U.S.N.M. 



This large, handsome species has a noteworthy resemblance to the 

 somewhat larger Arctiid moth, Automolis (Cratoplastis) diluta Felder.^ 

 and even more strLkingly so to the Lithosiid Diarhahdosia coroides 

 Schaus^ and to the Stenomid moth, Stenoma lampyridella Busck,^ 

 both of which were taken at the same place and at the same time as 

 Costoma hasiroseUa. The same coloration in all these species, though 

 differently placed, give the same general impression at first sight; 

 they all probably imitate a large lampyrid beetle, CratomorpTius sp., 

 which occurred commonly at the same time and place as the last 

 three named Lepidoptera and which both in flight and alighting 

 resemble them very remarkably. 



RHINDOMA, new genus. 



Type. — Rhindoma rosapicella, new series. 



Labial palpi long, recurved; second joint comparatively short, 

 somewhat tliickened \\ath scales, rough anteriorly; terminal joint 

 more than twice as long as second, rather stout, compressed, with 

 rough anterior edge; apex acute. Antennae longer than the fore- 

 wings, simple; basal joint without pec ten. Forewings elongate; costa 

 sinuate beyond middle; apex rounded; termen oblique; dorsum 

 straight; 12 veins: 7 and 8 stalked; 7 to below apex; 2, 3, and 4 

 approximate, but separate. Hindwings narrower than the fore- 

 wings ; costa sinuate beyond the middle ; apex and termen rounded ; 

 8 veins: 3 and 4 stalked; 5 cubital but distant; 6 and 7 separate and 

 parallel. Posterior tibiae rough above. 



» Reise Kovara, 1867, pi. 102, fig. 8. 



s Ann. Acad. Nat. Hist. (8), vol. 7, 1911, p. 368. 



» See p. 41. 



