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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 arthrorneres. 



Mo-NiL/i-FORM. Like a string 

 of beads. 



MoN-CE'ci-ous(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. 



MU'TIC. Unarmed. 



MYR-I-OP'O-DA (Gr. murios, thou- 

 sand; pous, podos, foot). The 

 class of Tracheates compris- 

 ing the Millipedes and Centi- 

 pedes. 



MYS'TAX. In certain Diptera, a 

 patch of bristles or hairs, im- 

 mediately above the mouth, on 

 the lower part of the hypostoma, 

 below the vibrissse. (Say.) 



NE-PHRID'I-A (Gr. nephros, kid- 

 ney). The segmental organs 

 of worms, etc. 



NEU-RA'TION. Sometimes used 

 for the venation or system of 

 veins of the wing. 



NEU-ROP'TE-RA (Gr. neuron, 

 nerve; pteron, wing). The or- 

 der of net-veined insects with 

 a complete metamorphosis. 



NID-A-MEN'TAI,. Referring to a 

 nest, or egg-sac. 



NODE. A knot; a knob; nodi- 

 forrn, node-shaped. 



NO'DUS. A stout, oblique, short 

 vein in the Odonala, 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-CORD'ATE. Inversely heart- 

 shaped. 



OB-O'VATE. Inversely ovate; the 

 smaller end turned towards the 

 base. 



OB'SO-LETE. Indistinct; almost 

 lost to view; disused; rudi- 

 mentary. 



OB'TECT-ED. Covered ; con- 

 cealed. 



O'CHRE-ous. Of a more or less 

 deep ochre color. 



O DO'NA. Applied to the pecu- 

 liar mouth-parts of Odonata 

 (dragon-flies) by Fabricius, on 

 account of the long teeth on 

 the labium, etc. 



O'DO-NA-TA (Gr. odous, odontos, 



