AMERICAN ENTOMOLOGY. 141 



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 lujala 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 beneath 

 the nasus, and above the mandibles', it is sometimes entirely con- 

 cealed ; it is the labium of some authors. 



Lacerated, ragged; torn. 



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

 tened or concave, biarticulate valves, situated on the tongue and 

 near their tip supporting the labial palpi; they are distinguished 

 from those palpi by being flat instead of cylindrical. 



fjaciniee infer lores, (in the family Apidae,) two inarticulate, mem- 

 branaceous valves, which embrace the tongue at its entrance into 

 the tube. 



Laciniated, jagged ; cut into irregular segments. 



Lactescent, yielding or secreting a milky fluid. 



Ijactcus, of a shining white or milky color. 



Lacunose, pitted ; having the surface covered with small cavities. 

 See /arose. 



Lamella, a thin plate or foliation. 



Lamcttated, (antennas) divided laterally into distinct plates or 

 foliations. Seejissilc, setaceous, &c. 



Lanate, woolly; covered with dense, fine, long, white hairs, so 

 distinct that they may be separated. See tomentose. 



Lanceolate, lance or spear-shaped; oblong and tapering to the 

 end. 



Larva, the first state of an insect subsequent to the egg ; it ik 

 known by the names maggot, grub, caterpillar, Sec. ; it is slow, 

 sterile, and voracious ; the old authors called it cruca. 



