34 MODERN ARRANGEMMENT OP 



sect in repose are slightly sloped or horizontal, and form with 

 the body a broad and short triangle. 



The genera are PYRALIS, VOLUCRA, XYLOPODA, PRO- 



CERAS and HERMINIA. 

 The caterpillar provided with fourteen feet. 



Genus PYRALIS, Latreille. 



The antennae are setaceous ; the wings are short, 

 broad at their base, forming with the body a 

 truncated ellipse or triangle, of which the opposite 

 sides are arched near their junction. 



FAMILY VI. PHAL.ENITES, Latreille. 



The caterpillars with ten or twelve feet, the anal 

 ones never wanting ; body naked, glabrous, 

 generally long or linear, the two extremities 

 approximated in walking, and the intermediate 

 portion curved upwards in an annular form ; 

 chrysalis slightly enveloped, or the cocoon with 

 but little silky matter ; body of the insect often 

 slender, with wings extended, or in a flattened 

 slope ; spiral trunk none, or minute ; many of 

 the males having pectinated antennae. 



I. Caterpillars with twelve feet. 



It has but one genus, METROCAMPUS. 



II. Caterpillars with ten feet. 



1. Males and females with wings formed for flight. 



It has but one genus, PHAL.KNA. 



2. Females apterous or semi-apterous, and unable to fly. 



It has but one genus, HYBERNIA. 



