78 EXPLANATION OF TERMS 



Malaxation: a kneading or softening; applied to the chewing and squeezing 

 by fossorial wasps of insects captured as food for their larvae. 



Male: that sex having organs for the production of spermatozoa: desig- 

 nated by c?, the astronomical sign for Mars. 



Mallophaga: wool-eaters: an ordinal term applied to biting lice: wingless; 

 mandibulate ; thoracic segments similar ; no metamorphosis : = Lipoptcra. 



Malpighian tubules: long, slender tubules, varying in number, serving as 

 excretory organs, entering the alimentary canal at the point of junction of 

 chylific ventricle and ileum ; said to be analogous with kidneys : = biliary 

 vessels. 



Mammilate: with nipple-like protuberances or processes. 



Mandible: the lateral upper jaws of a biting insect. 



Mandibular scrobe: a broad deep groove on outer side of mandible in some 

 Coleoptcra. 



Mandibular segment: the fourth or mandible-bearing segment of head. 



Mandibulata: that series of insects in which the adults have functional 

 mandibles used for biting. 



Mandibulate: with jaws or mandibles. 



Manicate-us: fur-like: surface clothed with irregular depressed hair. 



Manitrunk: that part of trunk that bears the anterior legs: = prothorax. 



Manometabola: with a slight or gradual metamorphosis and without a rest- 

 ing stage; e. g., the Orthoptcra. 



Manubrium: in Coleoptcra; that part of the mesosternum in Elaterida; 

 which forms the process for fitting into the cavity of the prothorax : in 

 Collcmbola; the basal part of the furculum. 



Manus: the hand: formerly applied to the anterior tarsus. 



Marbled: irregularly mottled, gray and white, like marble; = marmoratus. 



Marcescent: shrivelling. 



Margaritaceous: shining, like mother of pearl = nacreous ; q. v. 



Margin: that portion of a surface within the edge, bounded on the inner 

 side by the sub-margin and consisting of a more or less dilated imaginary 

 line. 



Marginal: of, belonging to, or near the margin. 



Marginal area: in Orthoptcra; see mediastinal area. 



Marginal bristles: in Dipt era; are inserted on the posterior margin of the 

 abdominal segment. 



Marginal cell: in Diptcra (Williston) ; = subcostal (Schiner) ; =rradial 1 

 (Comst.) : in Hymcnoptcra; = radial 1 and 2 (Comst.) : in general that 

 cell beyond the stigma. 



Marginal field: in tegmina = costal field; q. v. 



Marginal nervure or vein: in Orthoptcra, = costa (Comst.) : in Hymcnop- 

 tcra (Norton), = radius 3 (Comst.): in general, the vein forming the 

 marginal cell. 



Margined -ated: bounded by an elevated or attenuated margin: when the 

 margin is edged by a flat border. 



Marmorate -us: spots and lines irregularly disposed, as in marble: marbled. 



Mask: in the nymphs of Odonata, the modified labium which, when at rest, 

 conceals the other mouth parts. 



