DANAIS. 
225 
Family 8. — DANAID^^^, Doubl. Gen. Diiirn. Lop. 1847 ; 
Feld. Wien. Ent. Mosc. vi. p. 74. 
Chaeacters. — Larva cylindrical, smaller towards the head, 
furnished on one or more of the anterior segments with a pair of 
long slender flexible non-retractile tentacula ; a similar shorter 
pair on the twelfth segment. 
Pupa suspended; rather compressed longitudinally in the 
abdominal region. 
Imago. — Fore wings elongated, the hind margin generally 
concave, and never angulated. The discoidal cell closed; the sub- 
costal nervure five-branched. Hind wings with their margins 
entire and rounded ; discoidal cell closed ; abdominal fold ample. 
Eyes prominent. Palpi divergent, not very prominent, triarticulate. 
Antenna gradually thickening into a club. Thorax spotted with 
white or yellow on the pectoral surface. Anterior legs atrophied, 
the two posterior pairs stout and strong. Abdomen slender, not 
reaching as far as the anal angle of the hind wing. 
Genus 1. — DANAIS, Latr. Ency. Meth. ix. p. 10 (1819); Boisd. 
Lee. Lep. Am. Sept. p. 1833 ; Doubl. Gen. Diurn. 
Lep. p. 89. 
Danaus, Latr. Gen. Crust. Ins. iv. p. 20. 
Larva generally whitish or grey, marked with green, yellow, 
or purple, and with black transverse lines. All the known larvae 
feed on Asdepiadee. 
Pupa. — Generally green, with gold decorations. 
Imago. — Antennae about half the length of the body, and with 
distinct though gradually formed clubs. Expanse of wings generally 
considerable; prevailing colours, brown, black, and white. Nervures 
black and strong ; costal and subcostal nervures of fore wings 
widely separated. Hind wings' with a patch of closely placed scales 
on the first median nervule in the male. 
This is a large genus, widely spread over the warmer regions 
of the earth. Only one species inhabits Europe, and but three are 
found in North America. They are much given to moving about 
2 G 
