CLASSIFICATION. 

 DESCRIPTION OF LEPIDOPTERA. 



'Ist. — Wings : Four for active flight, large and 

 with branching veins like those of a fern leaf. 

 Covered on both sides with great numbers 

 of small scales J arranged in rows like the tiles 

 on a roof; these give the shadings and colors 

 to the wings. 

 2d. — Mouth parts^ for sucking. The most im- 

 portant part is a trunk, called the tongue, 

 consisting of the jaws prolonged into a tube; 

 this trunk or tongue, when at rest, is rolled up 

 in a spiral between two hairy palpi in the 

 front of the head. 

 3d. — Transformations^ complete. Eggs more 

 various in shape than in the other sub-orders. 

 Larv83 as caterpillars, long and cylindrical, 

 composed of thirteen segments, of which the 

 anterior rej) resents the head of the imago, and 

 p ) the next three, each usually with a pair of 

 g short legs, the thorax, and the remainder 



^ the abdomen of the imago. 



The four intermediate and the anal segment 

 have forelegs ; the sides of the body have 

 nine pairs of spiracles. The head has a strong 

 pair of mandibles, a moderate sized upper Up 

 or labrum, and the maxillte and labium or 

 under lip are small, fleshy and soldered 

 together, and on the centre of this labium is 

 placed the spinneret, or silk-spinning organ, 

 in tliose that have one. Body of larva3 naked, 

 or clothed with hairs, spines or warts. 



Pupic, obtected, conical in form, producing 

 moths ; or, angulated, producing butterflies. 



Some chrysalids encased in a cocoon of silk, 

 hair, etc. ; others naked. 



