324 



Victoria, Vancouver Island, July (Crotcii, Mns. Comp. ZoiU.) ; Californiii 

 (Edwards). 



The long palpi, the sqnare, ungled hind wings, the silken brown-gray 

 wings, and the peculiar markings on tlie under side, the colors reminding one 

 of the under side oi' a Glaucoptenjr, and the very slender alxlomen, charac- 

 terize this peculiar species, which is named in h()iu)r of M. Guenee. 



ASTIIENA HiiWner. Plate 4, fig. 2. 



Aslluna Hiibii., Veiz., 310, 1818. 



JcidoHa Trt'its. (iu part), Sclim. Eur., vi (i),3, 1827. 



Diip., Lop. Frauce, vii (iv), a'21, 1829. 

 "Ciimaiida Sodoft"., Hull. S. I. Mosc, 18, 1837." 

 Acidalia Boisd. (iu part), Geu. luil., 227, 1840. 



H.-Sch. (ill part), Scbiii. Eiir.,iii, 12, 1847. 



Steph., Cat. U-p., 221, IS.'.O. 

 Cidaria Lederer (in part), Verb. Bot. Zool. Ges. Wieu, 253, 1853. 

 Asthcita Guen., Pbal., i, 434, 18.57. 



Walk., Li.st Lep. Ilet. Br. Mu.s.,xxii, 073, 18(il. 



Hea<i luirrow in tront; sides of front parallel; eyes large, globose. Palpi 

 very slender, not reaching the front. Male antenna; simple, as in Acidalia. 

 Wings much as in Acidalia, but shorter, not subfalcate; apex mucli rounded; 

 costal region ratiier wide. Hind wings much rounded, sometimes with a very 

 slight angle. Venation much as in Acidalia; a single subcostal cell; the 

 diflerences tVom Acidalia are mainly due to the diiierences in the shape of 

 the wings. Hind legs well developed ; tibiae long and slender, the spurs 

 unusually long ; tarsi not much more than half as long as the tibiae. Abdo- 

 men of male very long and slender. Coloration : white or ochreous, with 

 four to si.x transverse, sinuous, darker lines. 



This genus dilfers very sliglitly from Acidalia, and mainly in the more 

 arched costa of the fore wings, the i)road costal region, and the rounded apex. 

 On these accounts, 1 originally mistook our albogilvaria for a Cori/cia. 



Larva. — "Caterpillars short, moniliform, swollen in the middle, very 

 attenuated on the anterior segments; lluttened beneath and carinated on the 

 sides daring locomotion; head very small and globular; living exposed on 

 trees. Chrysalides contained in leaves or in moss." — Guenee. 



