GENUS PIIAL/ENA. 109 



with two compressed reflected feelers ; the tongue 

 is short and membranaceous, obtuse and bifid ; the 

 caterpillars have sixteen feet, often haiiy ; and the 

 pupa is pointed at the tip. This section is sub- 

 divided as follows :— 



a. with the wings expanded. 



b. with the wings reversed. 



c. with the wings deflected. 



d. with the wings incumbent. 



e. with the wings convolute. 



Section II. Geometka. — The antennae are fili- 

 form ; the feelers are cylindrical ; the tongue is 

 projected, membranaceous, setaceous, and bifid; 

 the larvffi have from eight to ten feet, six of which 

 are pectoral, two caudal, and sometimes two sub- 

 caudal; the pupse have pointed tips. The follow- 

 ing are the subdivisions of this section : — 



a. the antennae are pectinated. 



b. the antennae are setaceous. 



c. the wings arc forked and connivent. 

 Section III. Noctua. — The antenncD are seta- 

 ceous ; the feelers are compressed and hairy, with 

 the tip cylindi'ical and naked ; the tongue is pro- 

 jecting, homy, setaceous, and bifid ; the larva has 

 sixteen feet ; the pupa is pointed at the tip. The 

 following are the subdivisions of this section : — 



a. with the wings expanded. 



b. with the wings flat and incumbent, and the 



thorax smooth. 



