zyg;f,nid/e. — I NO. lo.;, 



Family L— ZYGTENID^E, Leach. 



Antenna; fusiform, sometimes bipectinated, without a fascicle of scales at the 

 apex : head smooth : paliii short or elongate, clothed with long scales or por- 

 rected hair, the terminal joint elongated : abdovien cylindric, with a slight 

 tuft at the apex : win<rs in the indigenous species covered with scales, deflcxcd 

 during repose. Larva exposed, fusiform, slightly villosc, not tailed, legs mi- 

 nute: ]mpa folliculated : posterior tibiw with short spurs. 



The insects of this family are of a gregarious nature, and, unlike 

 the Sjihingicke, they fly chiefly by day ; their flight is very heavy 

 and slow: their caterpillars sulisist iijion the leaves of divers plants, 

 and they form a silken web in which they change to pupae; some 

 of them arc hatched in the autumn, and remain concealed during 

 the winter, coming out on the ajiproach of spring, and undergoing 

 their final metamorphosis in May or June. 



AntenruE / ^^'P^'^^inatfe aut simphces, haud curvatffi : . 21. Inc. 



\ abrupte flexuoso-clavata? : .... 22. Anthrocera. 



Genus XXI. — Ixo, Leach. 



Antennae gradually thickening from the base to near the apex, straight, bipec- 

 tinated, or simple, with the interior edge subserrated ; paljii short, not reach- 

 ing beyond the clypeus, densely clothed with scales: head, thorax, abdomen, 

 and femo)-a thickly covered with scales, rather elongate on the former. Larva 

 scaly, depressed, head small : pupa with long wing-cases. 



The genus Ino was established by Fabricius by the name Procris, 

 but that having been preoccupied. Dr. Leach changed its appella- 

 tion to the one it now bears; the species are known from the An- 

 throcerse by the form of the antennee, which are not curved, but 

 nearly straight, and become gradually thicker as they approach the 

 tip, which is again slightly attenuated ; the males have this part 

 bipectinated, and the females simjile, but serrated beneath ; the 

 species (of which there arc several on the continent) are all of rich 

 tints of light green, blue, or brownish, and immaculate. 



Sp. 1. Statices. Alts aniicis viridi-caruleis subtas fnscis, jwsiicijtfuscis, antennis 

 pectinatis, apice subclavatis. (Exp. alar. 1 unc. — 1 unc. !• Un.) 



Sp. Statices. Linnc.—Don. vi. pi. 204./ 2.— Ino Statices. Stc/Ji. Catal. 



Anterior wings, thorax, and abdomen of a rich glossy silken blue-green ; the 

 former beneath and posterior wings on both sides brown : all the wings, espe- 

 cially the posterior, somewhat transparent : ciha greenish or brown. 



Var. /3. With the abdomen, and sometimes the thorax, of a brilliant rufous- 

 copper, with a silken gloss. 

 Haustellata. Vol. I. 30tii June, 1828. p 



