Page:Transactions NZ Institute Volume 15.djvu/62
The following is a tabulation of the New Zealand genera:—
| I. Forewings with 12 veins. | |
| A. Veins 7 and 8 of forewings stalked. | |
| 1. Fore-wings with costal fold in male. | |
| a. Veins 3 and 4 of hindwings separate. | |
| i. Thorax crested | 3. Pyrgotis. |
| ii. Thorax„ smooth | 4. Adoxophyes. |
| b. Veins 3 and 4 of hindwings from a point | 2. Capua. |
| 2. Forewings simple | 1. Dichelia. |
| B. Veins 7 and 8 of forewings separate. | |
| 1. Forewings with costal fold in male. | |
| a. Veins 3 and 4 of hindwings separate | 6. Harmologa. |
| b. Veins„ 3 and 4„ of hindwings„ from a point | 7. Cacoecia. |
| 2. Forewings simple. | |
| a. Veins 3 and 4 of hindwings separate. | |
| i. Antennæ shortly and simply ciliated | 5. Proselena. |
| ii. Antennæ„ biciliated with long cilia | 11. Prothelymna. |
| b. Veins 3 and 4 of hindwings from a point. | |
| i. Veins 6 and 7 of hindwings separate | 8. Tortrix. |
| ii. Veins„ 3 and 4„ of hindwings„ stalked | 9. Dipterina. |
| II. Forewings with 10 veins | 10. Eurythecta. |
1. Dichelia, Gn.
Thorax smooth (rarely crested). Antennæ shortly ciliated in male. Palpi rather short, porrected, densely rough-scaled above and generally beneath, often tufted beneath. Forewings with costa simple in male. Hindwings hardly broader than forewings. Forewings with 12 veins, 7 and 8 stalked, 7 to hindmargin. Hindwings with 8 veins, 3 and 4 from a point or stalked, 5 approximated to 4 at base, 6 and 7 stalked.
Immediately distinguished from the other genera with veins 7 and 8 of the forewings stalked, by the absence of the costal fold in male. Only one New Zealand species is known, but the genus is well represented in Australia.
1. Dich. luciplagana, Walk.
(Pædisca luciplagana, Walk., Brit. Mus. Cat., 381; (Dichelia), Meyr., Proc. Linn. Soc. N.S.W., 1881, 470.)
Media, alis ant. dilutissime ochreis, triangulo costæ magno saturate fusco, spatio incluso semiovali sæpius albo, macula marginis postici elongata ciliisque saturate fuscis; post. albidis, apice leviter ochreo.
Male, female.—18–19½ mm. Head and thorax whitish-ochreous. Forewings moderate, posteriorly dilated, costa arched towards base, faintly sinuate in middle, hindmargin sinuate, oblique; whitish-ochreous, finely strigulated and sometimes suffused with darker; a moderately broad dark reddish-fuscous outwardly oblique streak from costa at ⅓, and a similar inwardly oblique streak from costa at ⅔, uniting on disc below middle so as to form a triangle enclosing a semi-oval white or pale ochreous patch; a