nUSClIEMONlD^E. . 33 



inches) ; wings densely clothed with large scales, and, especially 

 towards the base, with long hair ; fore-wings rather long, more 

 or less pointed at the tips ; hind -wings rounded, the frenulum 

 absent. Cells simple, closed, very long, the two lower sub- 

 median nervules rising in the male very near the base on the 

 fore-wings. Body very stout. Antennae strongly clubbed or 

 thickened at the extremity. 



Range — Southern United States, to Mexico and Costa Rica. 



Habits. — Plight diurnal, rapid, darting, and sometimes tower- 

 ing. They frequent open places, and generally settle near the 

 ground. At rest they fold their wings vertically. 



There are but two genera of this curious Family known. They 

 include a few brown species with tawny or yellowish markings. 

 In MegalJiyma^ Scudder, the antennae have a large knob like 

 club, and in Acentroaieme^ Scudder l^yEgiale^ Felder), there is 

 a long thickening before the tip, as in Cas//iia. 



FAMILY II. EUSCIIEMOXIIXE. 



This P'amily may be suggested to include a very curious 

 Australian species, Eusclienion rajjksice (Macleay), respecting 

 which authors differ, as to whether it is to be regarded as a 

 Butterfly or a Molh. It measures upwards of two inches across 

 the wings, which are dark brown. The fore-wings are rather 

 narrow and pointed, and the liind-wings rounded. There is a 

 narrow oblicjue yellow stripe on the fore-wings, and there are 

 two large yellow patches on the hind-wings. The hairy [)alpi 

 and the tip of tlie abdomen are scarlet. The antennae are 

 very long, much thickened, and slightly hooked at the tip. 

 The cells are sim[)le, and closed ; 'out the i»resence of a iVctui- 

 lum is a character of so much importance as to remove it from 

 the typical JhspcriiJi.c. Nothing a[)pe.us to be Kioided 

 respecting its habits and metamorphoses. 



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