350 MR. W. L. DISTANT ON RHYNCHOTA 
57. HERONAX WOLLASTONI, sp.n. (Pl. XXXIV. figs. 7, 7a.) 
Body and legs tawny white ; tegmina obscure greyish with opalescent reflections, the 
venation mostly black, the apical veins ochraceous; wings pale bluish opaline, the 
venation brownish; vertex of head triangular, its disk excavate; face very narrow, 
widened and excavate posteriorly; pronotum very short; mesonotum tricarinate ; 
tegmina nearly three times as long as broad, moderately widened from base to apex. 
Long., excl. tegm., 3} mm. Exp. tegm. 14 mm. 
Utakwa River, 2500-3000 ft. 
Subfamily Ricaniine. 
Genus RIcanIA. 
Ricania Germ. Mag. Ent. iii. p. 221 (1818). 
A genus found in the East Palearctic, Ethiopian, Oriental, Malayan, Australasian, 
and Neotropical regions. 
58. RIcANIA PERSONATA. 
Ricania (Ricanula) personata Melich. Verh. zool.-bot. Gesellsch. Wien, xlix. p. 290 (1899). 
Utakwa River, 3600 ft. 
The type was founded on a specimen from Astrolabe Bay. 
59. RIcANIA BINOTATA. 
Ricania binotata Walk. Journ. Linn. Soc. Lond., Zool. x. p. 149 (1870). 
Mimika River. Canor Camp, Utakwa River. Base Camp, sea-level. 
The species has also been received from Aru. 
60. RIcANIA CALIGINOSA. 
Ricama caliginosa Walk. Journ. Linn. Soc. Lond., Zool. x. p. 144 (1870). 
Utakwa River. 
Originally described from Aru. 
61. Ricanta Noctua, sp.n. (Pl. XXXIV. figs. 8, 8 a.) 
@. Body black ; vertex of head, margins and a central fascia to face, clypeus, and 
legs pale castaneous; abdominal segmental margins beneath pale ochraceous; tegmina 
black, more piceous on apical half, a small lunate spot on disk of basal area and the 
apex of clavus pale castaneous, on costal membrane above the apex of radial area a 
transverse whitish spot touching costal margin and attached to a smaller inner 
ochraceous spot; wings piceous, the venation black; vertex of head with a central 
carination, its lateral margins concavely oblique; pronotum with a central longitudinal 
