USED IN ENTOMOLOGY. 21 



Lingua, a bivalve, involuted, obtuse and fistulous tongue, com- 

 posed of two elongated semitubular fillets, which are in reality 

 elongated maxillae, as in the Lepidoptera ; the central organ 

 of the proboscis in the Hymenoptera constituting a cartilagin- 

 ous instrument of suction. Fabricius has applied the word 

 labium to denote this part, and he again applies the same 

 word to designate the whole proboscis ; it is " le levre infe- 

 rieur" of Degeer. 



Linguiform, tongue-shaped ; linear with the extremities obtusely 

 rounded. 



Literate, ornamented with characters like letters. 



Livid, dark gray, verging towards violet. 



Longitudinal, the direction of the longest diameter; situated 

 longitudinally with respect to the body. 



Lora, 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 colour. 



Luteus, unmixed yellow. 



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

 larging towards the extremity ; lyre-shaped. 



M. 



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

 figure, and of a different colour from the general surface. 



Maculated, spotted ; marked with spots. 



Maerianum, that segment of the postpectus 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 labrum, and above the max- 

 illae, moving transversely ; they are the maxilla? of Kirby, and 

 are destitute of palpi. 



Manus, the hand ; the articulated termination of the anterior 



feet; the anterior tarsus, including palma. 

 Marcescent, shrivelling. 



