PYRALIS. INSECTS. 371 



TRIBE V. TORTRICES, Lat. 



Caterpillars some with fourteen, but the greater portion with 

 sixteen feet, the anal ones never wanting ; labial palpi some- 

 times short and cylindrical, sometimes recurved above the 

 head, pointed, or in the form of horns. 



The caterpillars in this tribe roll themselves up in leaves or flowers, or live in the 

 interior of fruits. The wings of the insect in repose are slightly sloped or horizon- 

 tal, and form with the body a broad and short triangle. 



Gen. PYRALIS, VOLUCRA, (Pyralis hcradeana) ; XYLOPODA, (P. dentana) ; 

 PROCERAS (P. Soldana); HEHMIMIA, (caterpillar with fourteen feet.) 



Gen. PYRALIS, Lat. Oliv. Phalcena, Lin. 

 .Antennae setaceous ; wings short, broad at their base, forming 

 with the body a truncated ellipse or triangle, of which the 

 opposite sides are arched near their junction. 



P. prasinaria, Fab. Lat. Wings and body of a fine green ; two 

 oblique white lines on the upper wings ; under side of all the 

 wings whitish green. Inhabits Europe, on the oak and other trees. 

 Nouv. Diet, xxviii. 287. 



P. fagana, Lat. Fab. Green, with oblique lines of pale red on the 

 upper wings ; antennae and feet pale red, sometimes yellowish. 

 Inhabits Europe, on the oak, &c. Nouv. Diet, xxviii. 287- 



TRIBE VI. PHAL^ENITES, Lat. 



Caterpillars with ten or twelve feet, the anal ones never want- 

 ing ; body naked, glabrous, generally long or linear, the two 

 extremities approximated in walking, and the intermediate por- 

 tion curved upwards in the form of a ring ; chrysalis slightly 

 enveloped, or the cocoon with but little silky matter ; body 

 of the insect often slender, with wings extended or in a flat- 

 tened slope ; spiral trunk none or minute ; antennae pectina- 

 ted in many of the males. 



I. Caterpillars with twelve feet. 



Gen. METROCAMPUS. 



II. Caterpillars with ten feet 



1. Males and females with wings proper for flight. 



Gen. PHALJENA. 



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



Gen. HYBERNIA. 



Gen. PHALJENA, Lat. Phalcena (Geometra), Lin. 

 Antennae setaceous, short, simple, pectinated or plumose in both 

 sexes, or only in the males ; tongue often small ; lower palpi 

 almost concealing the upper, nearly cylindrical or conical, 

 short, and covered with small scales ; wings large, extended 

 horizontally, or slightly sloped, and the posterior border in 

 many species angular or dentated. 



This genus comprehends nearly that division of the Linnaean genus Phalcena termed 

 Geometra. Almost all the caterpillars are smooth, with a slender elongated body, 



