INVERTEBRATE ANIMALS. 91 



them may be noted Glaucopis caudata, with an append- 

 age resembling an ovipositor ; it is probably a mimic of 

 an associated Hymenopterous insect. 

 Group 210.— Family SPHINGIDyE. (r<p)y^, the sphinx. 

 The name alludes to the larva, which frequently carries 

 its head erect. Note the artistic correspondence between 

 the colour patterns and the very peculiar outlines of the 



insects in this group. 



Tipper Compartment. 



Specimen of S. Carolina, with extended proboscis. 



Division EHOPALOCERA. poTraXov, a club; Jtspaj, a horn. 



This division includes all the Butterflies, properly so called. 



The colour patterns of Butterflies appear to be 



derived through various modifications from two very 



simple type patterns, wrought with one or both of two 



kinds of scales. 



A. First Type-pattern. Wings having a pale 



ground with lines composed of dark scales along 

 the veins. Fi\a.rm^le : Aporia cratcegi. British. 



B. Second Type-pattern. Wings having a pale 



ground with an orange or red blush occupyinp 

 the central area. Gonepteryx Cleopatra 

 European. 

 There are also two kinds of scales : 



C. Scales coloured by Pigment. White, Yello\\ 



Brown, Black, Red, &c. 



D. Iridescent Scales, deriving their colour chiefly 



from the striation of their surface. Gold, Sil- 

 ver, Blue, Green, Amethyst, Crimson, &c. 

 Modifications : — 



A'. Dark lines attenuated, visible only at the tip 

 and there expanded. FierisBrassicce. British. 



