68 Transactions. — Zoology. 



Or. catacaustus, Meyr. 

 Also from Mount Arthur (4,500 feet). 



Crambus, F. 

 Cr. heliotes, n. sp. 



Male, female. — 15-18 rnm. Head, palpi, antennae, thorax, 

 abdomen, and legs rather dark fuscous ; palpi 31 ; antennal cilia- 

 tions in male \ ; thorax sometimes with a slender ochreous- 

 whitish dorsal streak indicated ; posterior tibiae suffused with 

 whitish-ochreous. Forewings elongate, posteriorly moderately 

 dilated, costa hardly arched, apex obtuse, hindmargin rather 

 obliquely rounded ; ochreous-brown ; sometimes a few scattered 

 black scales, sometimes a black suffusion forming strong longi- 

 tudinal streaks in disc and along veins towards anal angle ; 

 sometimes an ochreous-whitish streak along submedian fold from 

 base almost to anal angle, and a similar longitudinal streak 

 above middle from middle of disc to near hindmargin ; all these 

 markings often quite absent : cilia glossy whitish-grey. Hind- 

 wings bright orange ; base, costa, and inner margin, sometimes 

 also hindmargin and parts of one or two veins, slenderly suffused 

 with dark fuscous ; cilia whitish-fuscous, with a cloudy darker 

 line. 



Mount Arthur (3,800 feet), in January ; common in a re- 

 stricted locality in one of the limestone valleys. It varies con- 

 siderably, but is the only known Crambus with orange hindwings. 



Cr. dicr melius, Meyr. 

 Also from Mount Arthur (4,000 feet). 



Cr. isochytus, n. sp. 



Male. — 34-40 mm. Head white, sides behind eyes pale 

 ochreous. Palpi 5, light brownish-ochreous, white above and 

 towards base beneath. Antennas grey, flatly dentate, ciliations 

 § . Thorax pale brownish-ochreous, with a broad white dorsal 

 stripe. Abdomen ochreous-whitish. Legs ochreous-fuscous, 

 posterior pair ochreous-whitish. Forewings elongate, poste- 

 riorly gradually dilated, costa slightly arched, apex round- 

 pointed, hindmargin somewhat sinuate, oblique ; pale glossy 

 brownish-ochreous, with a slight brassy tinge ; a narrow white 

 costal streak from base, rather dilated beyond middle, then 

 attenuated to a point, terminating before apex ; a moderate 

 straight white central longitudinal streak from base to hind- 

 margin ; a moderate white streak, sometimes indistinct, at- 

 tenuated at both extremities, along inner margin from base to 

 anal angle, leaving a marginal line of ground-colour on posterior 

 § : cilia snow-white. Hindwings grey- whitish or ochreous- 

 whitish ; cilia white. 



