1650 
CATALOGUE OF 
hyaline spot beyond the middle. Hind wings with a white-hyaline 
discal stripe. Length of the body 6 lines ; of the wings 16 lines. 
Brazil ? In Mr. Saunders’ collection. 
Genus COBYDALLA. 
Corpus sat validutn. Proboscis longiuscula. Palpi porrecti, 
caput superantes ; articulus 3us conicus, brevis. Antennas corporis 
dimidio longiores. Abdomen alas posticas superans. Tibiae pos- 
ticae calcaribus quatuor mediocriter longis. Alae longiusculae, sat 
angustae; anticae apud costam vix convexae, apice rotundatae, mar- 
gine exteriore perobliquo. Mas . — Antennae subpectinatae. Fcem . — 
Antennae vix pectinatae. 
Body moderately stout. Proboscis elongate. Palpi porrect, 
straight, extending some distance beyond the head ; third joint 
conical, not one-fourth of the length of the second. Antennae more 
than half the length of the body. Abdomen extending rather 
beyond the hind wings. Hind tibiae with four moderately long 
spurs. Wings rather long and narrow. Fore wings hardly convex 
in front, rounded at the tips, extremely oblique along the exterior 
border ; first inferior vein curved, united to the second at the base ; 
third about four times further from the fourth than from the second. 
Male. — Antennas slightly pectinated. Female . — Antennae hardly 
pectinated. 
1. CoRYDALLA CRYPTOLEUCA. 
Mas et fcem. Atra, cyaneo trivittata ; caput cyaneum ; abdomen 
subtus album ; alee cyaneo strigatce , anticce e maculis duabus 
oblongis obliquis albis fasciatce , posticce subangulosce , macula 
postica cinerea. 
Deep black. Head mostly blue. Thorax and abdomen with 
three blue stripes. Abdomen beneath with a white disk. Coxae 
white beneath, Wings with blue streaks. Fore wings beyond the 
middle with an oblique white band, which is composed of two ob- 
long spots; these form a continuous line on the inner side. Hind 
wings with a hind grayish spot, very slightly angular beyond the 
middle of the exterior border. Length of the body 6— 7 lines ; of 
the wings 18 lines. 
Para. Valley of the Amazon. In Mr. Saunders’ collection. 
