262 BRITISH MOTHS 



Species 21. — Pterophorus calodactylus — (Wien. Verz., &c. ; Wood, fig. 1646; and our Plate CXXIT., 

 Fig. 8) — Expands 9 to 10 lines ; fore wings asliy-brown, with the tips more obscure, and marked with a large 

 fulvous spot, the inner margin dentated ; hind wings blackish, with the anal lobe blackish. Near London, New 

 Forest, Scotland, &c., in August. 



b. Fore vrings narrow, falcate, and variegated. 



Species 22. — Pterophortts tesseradactylus — (Linnseus, &c.; Wood, fig. 1647; and our Plate CXXIT., 

 Fig. 11) — Expands 9 to 9i lines ; fore wings subfalcate, clouded with white and brown, with a trigonate brown 

 spot towards the extremity of the costa edged externally with a white fascia and with a subapical white striga ; 

 the base of the costa with whitish lineote ; hind wings brown; anal lobe black. New Forest, near London, &c. 



Species 23. — Pterophorus punctidactylus s — (Haworth, &c.; Wood, fig. 1648 ; and our Plate CXXIV., 

 Fig. 12) — Expands 9 to 9j lines ; fore wings greenish-ashy, with whitish clouds, and numerous short white 

 costal Hneolfe, and a nearly obsolete, slightly-waved, whitish subapical striga ; hind wings deep brown ; anal 

 lobe black. Near London, and in Devonshire, in June and July. 



sSynonyme. — Alucita acanthodactyla, Hiibner? 



Species 24. — Pterophorus cosmodactyltjs — (Hiibner, &c. ; Wood, fig. 1649; and our Plate CXXIV., 

 Fig. 13) — Expands 9 lines ; fore wings olive-brown ; the costa with minute whitish spots, an obscure, darker, 

 subapical, triangular spot, and a very obscure, pale, subapical streak ; hind wings deep brown ; anal lobe 

 blackish. Ripley, in June ; but very rare. 



Species 25. — Pterophorfs didactylus h — (Linnseus; Donovan, ix., pi. 318 ; Wood, fig. 1650; and cur 

 Plate CXXIV., Fig. 14) — Expands 8 to 9 lines; fore wings dull ferruginous, with two white strigse beyond 

 the middle, the outer one running along the costa to the tip ; hind wings ashy-brown, with the tips darker ; 

 anal lobe brown and small. Near London, Norfolk, New Forest, &c., in June and July. 



^ Synonyme. — Alucita trichodactyla, Hiibner. 



Species 26. — Pterophorus heterodactylus — (Villers, &c.; Wood, fig. 1651 ; and our Plate CXXIV., 

 Fig. 15) — Expands 9| lines ; fore wings blackish, with white streaks, broken into spots ; hind wings brown. 

 Taken with the preceding species. 



Species 27. — Pterophorus microdactylus — (Stephens ; Wood, fig. 1652 ; and our Plate CXXIV., 

 Figs. 16, 17, 18) — Expands 6 to 6i lines ; fore wings brown, with a white striga beyond the middle, and some 

 apical white spots ; hind wings brown. Darenth Wood and Devonshire, in June, but very rare. 



ALUCITA, ScopoLi. 

 The triangular, many-cleft wings, short body, and long porrected palpi, with the terminal joint very slender, 

 distinguish this genus at once from the foregoing. Each wing is composed of six beautifully fringed flat 

 feathers, all of which are expanded when the animal is at rest. 



Species 1. — Alucita hexadactyla — (Linnseus, &c. ; Harris Expos, pi. 2, fig. 7, ph 3, fig. 1 ; Donovan iv,, 

 pi. 1.36 ; Wood, fig. 1653 ; and our Plate CXXIV., Fig. 19) — E-xpands 7 to 8 lines; wings ochreous-brown ; 

 the costa spotted with violet-black, with a broad fascia across the middle having paler edges, and a narrower 



