170 



IXVEIiTEBllATE AXIIIALH. 



insert rcMues t:> tli(.' surfare, and wliiih eoiive^- air to tlie tiucheaj. 

 Thougli active, the \>\\\kv ddes not eat ; and when the time cumes fur 

 the cnmpleticin nf the nietanunpliosin it approaches the surface, above 

 wliirh it raises its Imrk. 'I'lie skiu tlieii splits dorsally, an<l, drying. 



Fig. 12^.-Tli.- (•(.niijioii i;i;;it ('■„(,.,■ pipi.ns). .\, A IVn- (iT l;jr e;.'gs udaflinl togeOicr 

 tri ("nil a i-ift, ivliicli Hi.ats .in tin; walrr; I;, Tin- lanii, siisiiiaidta ill the water 

 lirail il()«-ii\\anl«, aii.l slimviiig the aiilenii;i' (.(). tin- terminal nsiiiratoiT tube (r), 

 and tlie tins attadn-d In tin; I'xtiviiiily nf tlie Imdv (/); C. The pupa, with the two 

 respiratory tubes atlaehrd t" flie tlmrax; 1), The adult insect, with the well- 

 develn]ieil fr'uut \viiigs, 1ln> rndinicniary liiud wings nr "balauecrs" (h), the 

 autemue (/i), and tin- laijlmseis ip). All the figures are greatly enlarged. 



forms a In.at, in which tlie insect floats until its wings are fit 

 for use. 



The Jti/iti'i-n constitute one of the largest orders of insects ; the 

 Hoii.se-tiies and Fh'sh-tlies (Miixra)^ the (Inats and Mosijuitoes 

 (Cdirnln-), llie (V.'ine-Hies (Tiimlii), the Fnrcst^tlics {Hij,p<jhosni\ 

 and the (_{ad-Hies {Tiihaniihe) constituting good examples. 



DltDKIt \. IvKrlKol'TEliA. 



This well-known and most lieautifnl of all the orders of insects 

 comprises the Biittertlies and Moths, tlie former lieing active by day 

 (diiinij//), anil the latter mostly towards twilight (rri'pusculaf), or 

 at night (iiurtunin/). In all the Li'pidiipt.era the mouth of the adult 

 insert is jinrely siK-torial, and is provided with a spiral trunk fitted 

 fd iiiiliiliing the juices of flowers, and formed out of the elongated 



