244 PROCEEDINGS OP THE AMERICAN ACADEMY 



ments; frontal tubercles formed of rather long, cylindrical curved 

 projections; cremaster broad but pointed. 



SYNOPSIS OF OUR GENERA. 



Coea. Butterfly : Cell of both wings closed ; hind wings tailed. Early 

 stages: Unknown. 



Histoeis. Butterfly: Cell of both wings open ; hind wings entire. Mature 

 Caterpillar: Head with enormously clubbed coronal appendages. Chrysalis: 

 Dorsal spines of abdomen on anterior edge of segments, and 4-5 rayed at apex. 



Coea Hubner. 



Butterfly : Antennae less than half as long as the fore wings ; 

 fore wings with the cell closed and the third superior subcostal 

 nervule arising at or beyond the middle of the wing; hind wings 

 with cell closed and the upper median nervule prolonged to a slen- 

 der tail. Early stages : Unknown, (/coe'cu, i.e. one who perceives ; 

 see the next genus.) 



Coea acheronta Fabr. (Pap. cadmus Cram. ; Pap. pherecy- 

 des Cram.) Upper surface of fore wings tawny fulvous at base, 

 separated from the black apex and outer margin, sharply above, 

 vaguely below, by a line which crosses the outer part of the cell 

 obliquely to the centre of the upper median interspace and then 

 zigzags toward the lower outer angle ; the black apex has six sub- 

 quadrate or triangular white spots, four in an oblique series and 

 two beyond, irregularly placed and unequal ; hind wings rich dark 

 brown, the basal half with fulvous hairs. Under surface of various 

 shades of brown, enlivened by areas of blue, lilac, and nacreous, the 

 basal half slightly the darker and limited outwardly by a strongly 

 and irregularly crenulate black line, which on the hind wings sends 

 a long loop outward along the upper side of the submedian nervure ; 

 other large subocellate black-edged markings occur in the basal 

 half of the wings, a broad submarginal sprinkling of dark brown 

 and lavender scales before the tail of the hind wings, and a nearly 

 straight dark ferruginous cloudy streak across the middle of the 

 outer half of both wings starting from a subapical white spot on 

 the costal margin of the fore wings. Expanse 85 mm. — Texas, 

 New Mexico; accidental visitor. 



Historis Hubner. 



Butterfly : Antennae half as long as the produced fore wings ; these 

 with the cell open and the third superior subcostal nervule arising 

 well before the middle of the wing; hind wings with the cell open 



