432 



ARTHROrODA 



piiietrans* attacks mau, the female boring into the skin and there 

 laying the eggs. 



Order XI. Lepidoptera. 



This group of bultcrllies and motlis is the most sharply limited of any 

 order of Hexapods. I'he \\'iiigs, both pairs of which are well developed 

 (rarclv lacking, as in many female Psychida^ and some Geometrid;i?), are 

 covered with scales (llallened hairs), and to these are due the frequently 

 brilliant color patterns. Frequenth the fore and hind wings are united 

 bv hooks. The mesothorax is large and the smaller pro- and metathoras 

 are closely united to it, gixdng rire region a distinctness from head or alido- 

 men. The mouth parts are peculiar (lig. 447), although foreshadowed in 

 the rhryganids, and not fully developeil in (he ^Microlepidoplera. The 

 mandibles are rudimentarv or absent, while the fused maxilla-, greatly 

 elongate, form the proboscis. The de'wlopment is holometaljolous; the 



Fig. 4SS. — LcKCdiiid uniptaicfdla, arni\'-\vonii aiKl niolh ^froni Rilc\\ 



larva?, fre(]uontIy called caterpillars (fig. 460), have biting mouth parts, 

 the mandil)les \ery strong; and also a pair of silk glands (scrir/cria), which 

 open on the labium and produce a secretion hardening to silk; besides the 

 thoracic legs, prolegs (two to hve pairs) are present. The pupa^ are 

 usually pupa? ol.itecta-, sometimes ornamented witJi golden spots, whence 

 the name cltrysaliJcs often applied to them. 



Sub Order I. ^nCROLEPIDOPTERA. Small, inconspicuous; at rest 

 holding the wings horizontally over the hack. Timud.f,; the kirvx form a tube 

 of the food material which they carry around with them. Tinea prllimiclli},'*' 

 the clothes molh. Tortricid.e; the iar\;e roll leaves into a tube. Carftocapsa 

 pomondla* the codlin moth of apples. Sub Order IL GEOINIKTRINA. 

 Moths slender, wini,'s in pattern and shape recalling those of bulterllies, Init 

 held horizonlally when at rest; 'tongue' (proboscis) small; larva? with two, rarely 



