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GLOSSARY. 



pteron, wing). The order of 

 insects represented by Panor- 

 pa. 



Mel-an-ism' (Gr. melas, black). 

 Where an insect is abnormally 

 or unusually dark. 



Mem-bra- na'ce-ous. Thin; skin- 

 ny; semi-transparent like 

 parchment. 



Men'tum (Lat., the chin). The 

 basal piece or sclerite of the 

 labium or second maxillae of 

 insects. Submentum is the 

 posterior division of the men- 

 turn. 



Mes-en'te-ron. The mid-gut or 

 stomach. 



Me-ta-mere'. The same as so- 

 mites or arthromeres. 



Mo-nii/i-form. Like a string 

 of beads. 



Mon-cs'ci-otjs (Gr. monos, single; 

 oikos, house). With both 

 kinds of sexual glands, etc., 

 existing in the same individ- 

 ual. 



Mu'cro-nate. Ending suddenly 

 in a sharp point. 



Mtj'tic. Unarmed. 



MYii-i-op'o-DA(Gr. murios, thou- 

 sand; pons, podos, foot). The 

 class of Tracheati's compris- 

 ing the Millipedes and Centi- 

 pedes. 



Mys'tax. In certain Dipt era., a 

 patch of bristles or hairs, im- 

 mediately above the mouth, on 

 the lower part of the hy postoma, 

 below the vibrissa?. (Say. ) 



Ne-phrid'i-a (Gr. nephros, kid- 

 ney). The segmental organs 

 of worms, etc. 



Netj-ra'tion. Sometimes used 

 for the venation or system of 

 veins of the wing. 



Netj-rop'te-ra (Gr. neuron, 

 nerve; pteron, wing). The or- 

 der of net- veined insects with 

 a complete metamorphosis. 



Nida-men'tal. Referring to a 

 nest, or egg-sac. 



Node. A knot; a knob; nodi- 

 form, node-shaped. 



No'dus. A stout, oblique, short 

 vein in the Odonata, at the 

 place where the anterior mar- 

 gin of the wings is somewhat 

 drawn in. 



Nymph. Usually used as an 

 equivalent of pupa; but in 

 insects with an incomplete 

 metamorphosis applied to the 

 whole period from hatching 

 to the complete winged stage; 

 as in may-flies, Orthoptera, 

 etc. 



Ob-cordate. Inversely heart- 

 shaped. 



Ob-ovate. Inversely ovate; the 

 smaller end turned towards the 

 1 >ase. 



Or. so-lete. Indistinct; almost 

 lost to view; disused; rudi- 

 mentary. 



Ob'tect-ed. Covered ; con- 

 cealed. 



O'cHRE-orjs. Of a more or less 

 deep ochre color. 



O do'na. Applied to the pecu- 

 liar mouth-parts of Odonnt<t 

 (dragon-flies) by Fabricius, on 

 account of the long teeth on 

 the labium, etc. 



O'do-na-ta (Gr. odous, odontos, 





