USED IN ENTOMOLOGY. 77 



Luciferine: a substance in the blood of luminous beetles which, when brought 

 into contact with luciferase, produces light. 



Luciferous: light giving. 



Lucifugous: fleeing the light: applied to nocturnal forms or those that live 

 in concealment. 



Lumen: the cavity of an organ: the inner surface of a tube: the hollow 

 portion of a gland or vesicular structure. 



Luminescence: applied to the light of fire-flies, as a substitute for phos- 

 phorescence. 



Lumper: one who, in describing species or genera, recognizes only prominent 

 or obvious characters to the exclusion of minor color or variable char- 

 acters of maculation or structure : see splitter. 



Lunaris or Lunate: crescent-shaped: formed like a new moon. 



Lunula: a small lunule or crescent. 



Lunulas: in Hymenoptera, crescent-shaped marks near the orbits. 



Lunulate: a line, when made up of a series of small lunules. 



Lunule: a lunate mark or crescent. 



Lurid -us: dirty brown with a bluish tinge [pale brown + a little French 

 blue] : also used to indicate an obscuring of bright colors. 



Luteo-testaceous: dark clay yellow. 



Luteous-eus: clay yellow [pale clay yellow]. 



Lutescent: becoming or appearing to be clay yellow. 



Lutose-us: apparently or really covered with dirt. 



Lymphatic: producing, carrying or relating to the lymph. 



Lyrate: lyre-shaped: cut into several transverse segments, and gradually en- 

 larging towards the extremity. 



Lyre: the upper wall or border of the spinning tube of caterpillars. 



M 



Macrochaetae: the long bristles occurring singly on the body of Diptera. 



Macropterous: long or large winged. 



Macrosomites: the primitive regions of primitive band of the insect embryo. 



Macula: a colored mark larger than a spot; of indeterminate figure. 



Maculate -ed: spotted or marked with figures of any shape, of a color dif- 

 fering from the ground. 



Maculation: the ornamentation or pattern of marking. 



Maculose: spotted; with many marks or spots. 



Mcerianum: "that segment of the post-pectus situate one on each side behind 

 the acetabulum and parapleurum ; it supports the posterior feet " : see 

 meriaeum. 



Magenta : pinkish red ; an aniline product. 



Magis: more. 



Maggot: applied to the footless larv?e of Diptera. 



Mala: a lobe: a ridged or grinding surface. 



Mala mandibularis: the grinding surface or area of a mandible. 



Mala maxillae: the lobes of maxilla; outer or galea, inner or lacinia; where 

 only one is present, the term refers to that one. 



