USED IN ENTOMOLOGY. 19 



InfundibuHform, funnel-shaped . 



Inner margin, or interior margin, of the wings, is that margin 



which extends from the base to the posterior angle. 

 Institia, a stria of equal breadth throughout. 

 Instrumenta cibaria, the trophi ; parts of the mouth taken col- 

 lectively. 



Interior edge, or inner edge, the boundary of the inner margin. 

 Interior palpi, the labial palpi. 

 Interrupted, broken in its continuity ; but the tips of the broken 



parts are in a right line with each other. See dislocated. 

 Interstitial line, the longitudinal space which intervenes between 



two strise of the elytra. 

 Intorted, turned or twisted inwards. 

 Invertebral, those animals which are destitute of the vertebral 



column. 



Involute, rolled inwards spirally. 

 Iris, of an ocellate wing spot, is a circle which surrounds the 



pupil. 

 Irregular, (antennae) articulations strikingly unequal either in 



magnitude or order. 

 Irrorate, marked with minute points ; dew-like. 



J. 



Joint, articulation ; this word is applied to the space between 

 two incisures, as the divisions of the antennae. 



Jugulum, that cavity of the posterior part of the head to which 

 the neck is annexed. 



K. 



Keel, the carina. 



L. 



Labial palpi, articulated filaments, one on each side of the la- 

 bium ; the interior or anterior palpi. 



Labiated, having lips. 



Labium, lower lip ; composed of the mentum, and ligula or 

 tongue ; it supports the labial palpi. 



Labrum, upper lip; the superior member of the trophi; it is 

 generally moveable, and applied to or placed immediately be- 

 neath the nasus, and above the mandibles ; it is sometimes 

 entirely concealed ; it is the labium of some authors. 



Lacerated, ragged ; torn. 



Lacinias exteriores, (in the family Apidae,) two elongated, flat- 

 tened or concave, biarticulate valves, situated on the tongue 



