AND THEIR TRANSFORMATIONS. 



173 



RHYACIONIA, Hubner; Stephens. ZEIRAPHERA, pars, Curtis. 

 The palpi are short and slender, porrected like a beak, with the acute terminal joint exposed. The antennae 

 are very pubescent in the males ; the thorax is not crested ; the fore wings are short, with the costa straight, 

 and the apical margin obliquely truncate, thereby forming a triangle, with the surface black, with darker 

 elevated scales, and a very oblique snowy white fascia, which is occasionally more or less broken up and dentate 

 outwardly, a character possessed by no other indigenous species. 



Species 1. — Rhyacionia hastiana*" — (Plate XCIX., Fig. 15) — Measures from 6 to 8 lines in expanse ; 

 fore wings dark brown, varied with blackish spots and streaks, and with a broad white rather oblique fascia, 

 very variable in extent, before the middle, with an indentation on the inside, and waved on the outside, beyond 

 which are several lead-coloured spots and elevated scales, and an orange streak along the apical margin ; the 

 costa towards the apex with three white dots ; hind wings brown. Taken in Devonshire, at the end of May 

 and in June. 



■* SvNONVMES. — Phalcena Torlrix Hastiana, Linnieus; Fabricius ; Curtis, Brit. Ent., pi. 711 ; Stephens. 

 Tortrix ulmana, Hubner $ . Tortrix areolana, Hiibner $ . 



Species 2. — Rhyacionia flavopasciana — (Plate XCIX., Fig. 16) — Measures 72 lines in expanse ; fore 

 wings dark brown, mottled with lighter brown and shining leaden scales ; before the middle of the wing is a 

 rather broad, pale fulvous, angulated fascia, on which is an angulated rusty brown line ; centre of the wing 

 darkest, apical portion with an indistinct oblique, paler fascia extending from the costa to the anal angle, 

 emitting a branch which extends nearly to the apex ; the costa marked with pale dots, largest beyond the 

 middle of the wing, each bearing a small black speck ; tip of the wing with a dark brown spot, and the middle 

 of the apical margin with a larger dark blotch ; hind wings dark brown. From Mr. Stone's Cabinet now in Mr. 

 Bentley's Collection. 



DESCRIPTION OF PLATE C. 



Insects. — Fig. I. Eupoecilia maculosina, 2. a dark variety (the small 

 black spotted). 

 „ Fig. 3. Eupcecilia dubitana (the doubtful). 

 5, Fig. 4. Eupoecilia augustana (the barred marble). 



Fig. 5. Eupcecilia nana (the barred dwarf). 

 „ Fig. 6. Eupcecilia pygmseana (the dingy dwarf). 

 „ Fig. 7. Eupaecilia permixtana (the orange and black). 

 „ Fig. 8. Eupoecilia sodaliana (the brindled marble). 

 „ Fig. 9. Phtheochroa rugosana (the rough wing). 

 „ Fig. 10. Cochylis roseana (the rosy). 



Insects. — Fig. H. Cochylis subroseana (the dingy rosy). 

 „ Fig. 12. Cochylis ruficiliana (the red fringe). 

 „ Fig. 13. Cochylis griseana (the oblique barred gray). ' 

 „ Fig. 14. Cochylis rupicola (the chalk-clitT Tortrix). 

 „ Fig. 15. Cochylis Vectisana (the Isle of Wight Cochylis). 

 Plant. — Fig. 16. Aira Alpina (smooth alpine hair grass). 



All the insects in this plate are from the cabinet of Mr. Bentley, 

 except E. pygmaeana, and C. ruficiliana from Wood's figures, after Mr. 

 Stephen's specimens. H. N. H. 



EUPCECILIA, Stephens. COCHYLIS, Pars, Curtis. 

 These Insects are of small size, and have the palpi short and thick, densely squamose, with the terminal 

 joints nearly concealed ; the antenna are thickly pubescent beneath in the males, the head with a crest between 

 the antennae ; the thorax not crested ; and the fore wings rather narrow, elongate triangular, with the apical 

 margin slightly obliquely truncate ; the disc smooth, pale, and generally with a dark central fascia ; the hind 

 wings are pale in the males, and dark in the females. 



Species 1. — Eupcecilia maculosana <^ — (Plate C, Figs. 1,2) — Measures 5 or 6 lines in expanse ; fore 

 wings white, varying to ashy, the base itself ashy, with a sinuous brown fascia dotted with black rather 

 before the middle of the wing, which scarcely extends to the costa, beyond which are some irregular brown 



