3. ANTHRAX ^^^ 



^it ami tSabdonr Sometimes with white cross-bands but the 



HvATA>^THRAX-Wiii-s hyaline with sometimes only the costal cell 



like oi-Tans at the base ot the wings unusnally developed, tliese or a 

 beTng u'sually cl.,thed with a dense covermg ot scales anj^ » "f'^^^'* ,,^ 

 l„.il1?n„t silverv or "olden reflection; sinnlar scales, m such cases, aaoni 

 the X-'^^^n^^^^^^^ o Ihe base of thecosta; the pr»,alar hook xs concea ed 

 "der tlfese scales, and beconres visible after thejr removal only , the 



shade of colour ot the scales somet.mes '^'^^'^ll^^.^l^'Z^.'^^d contains 

 ThyrUanthmx is well represented by om ^. /e)K« a I's, ana c 



about a dozen well-recognised PatearcUcspec,es^»«^.»(Bensu^^^^^^^^ 

 has no representative in Britain, but contains a laige n™^^'^ 



to be made both to elucidate synonymy and to te t the Ws ^^ f ^^ ^^ 

 crenus- many of the species are cxceedinrjly closely f^f ^' ^"*- , «°^^ 

 descSitiois Jre very scarce; some anthorshave got out of t^^^ difficratj ^^^^^ 



by the fact that the sexes are often differently '^n^^^ ° '^^^^^^ ^f another. 



fern::^rtTC;^^:j^^=|^HS^-^ 

 Kr gj^u^^^ '^^^^Six^;£^^ 



in America but have not been recognised m l^uiope, wnue pio J 

 Mhrax is incomplete, but enough is known to cause a belief that the 



