CHAP. XXJ.] 
INSECTS. 
4*1 
Sub-order — Lepiijoptera Heterocera, or Moths. 
The Lepidoptera Heterocera, or Moths, are of such immense 
extent, and are, besides, so imperfectly known compared with 
the Butterflies, that it would serve no purpose to go into the 
details of their distribution; especially as most of the families 
and a considerable number of the genera are cosmopolitan. We 
propose therefore to notice only the Sphingina, which, being 
generally of large size and finely marked or coloured, and many 
of them day-fliers, have been extensively collected ; and whose 
numbers are more manageable than the succeeding groups. 
Group I.— SPHINGINA. 
Family 17. — ZYGiENIDiE (46 Genera, about 530 Species). 
The ZygcBiiidfe are universally distributed, but many of the 
genera are restricted in their range. Zygoma (85 sp.) is mainly 
Pal tear ctic, but 2 species are South African, and 1 North 
American ; Procris (22 sp.) has a scattered distribution, from the 
Palsearctic region to South America, South Africa and North 
India ; Ileterogynis (3 sp.) and Dysauxis (3 sp.) are European ; 
Pollanisus (3 sp.) is Australian; Glaucopis (120 sp.) is mainly 
Neotropical, with a few Oriental ; Syntomis (94 sp.) is found in 
all the Old-World regions ; and Euchrnmia (150 sp.) is found 
in all warm countries, though especially abundant in South 
America, 
Family 18. — GASTNILDJE (7 Genera, 63 Species). 
The Castniidie have an interesting distribution, being mainly 
Neotropical, with four genera in Australia and New Guinea. 
Castma, Coronis, and Gazera, with 51 species, are Neotropical ; 
Synvmon, Euschemon, Damias and Cocytia, with 12 species, are 
Australian, the latter being found only in the Papuan Islands. 
VOL. II. 1 I 
