AMERICAN ENTOMOLOGY. 143 



Lorn, small corneous cords upon which the base of the probos- 

 cis is seated ; these parts seem to be intended to let out or 

 draw in the proboscis; when the latter is projected they point 

 towards the mouth, and when it is retracted they point towards 

 the breast ; they are " les leviers " of Reaumur. 



Lubricous, covered with a slippery mucous. 



Lucid, shining; applied to insects which shine by night, as Lam- 

 pyris and Fulgora. 



Luciferous, giving light. 



Lunate, cresent-shaped ; formed like a new moon. 



Lurid, of a brownish-blue color. 



Luteus, unmixed yellow. 



Lyrate, cut into several transverse segments, and gradually en- 

 larging towards the extremity ; lyre-shaped. 



M. 



Macula, a spot larger than & puncture, of an indeterminate figure, 

 and of a different color from the general surface. 



Maculated, spotted ; marked with spots. 



Maerianum, that segment of the posfpectus situated one on each 

 side behind the acetabulum and parapleurum ; it supports the 

 posterior feet. 



Maggot, the larva; commonly applied to the immature fly 

 (Musca). 



Mandibles, the upper jaws, generally corneous, placed one on each 

 side immediately beneath the labrurn, and above the maxillae, 

 moving transversely ; they are the maxillae of Kirby, and are 

 destitute of palpi. 



Manus, the hand; the articulated termination of the anterior 

 feet; the anterior tarsus, including palma. 



Marcescent, shrivelling. 



Margin, that portion of a surface which is within the edge, 

 bounded on the inner side by the submarg in, and consisting 

 of a more or less dilated imaginary line. 



Marginal cellules, the radial cellules. 



Marginated, surrounded by an elevated or attenuated margin. 



Maxillee, jaws; one on each side of the mouth immediately be- 

 neath the mandibles, moving transversely, usually corneous at 

 base, and membranaceous or coriaceous at fip, and furnished 

 with one or two palpi. 



