Meyeick. — On New Zealand Geometrina. 101 



33. Detunda, Walk. 



Face roughly haired. Palpi moderate, second joint ascending, densely 

 rough-haired beneath, terminal joint slender, clavate, porrected. Antennae 

 in male bipectinated (4-5), in female also shortly bipectinated (1J). Fore- 

 wings with rough scales. Forewings with vein -6 from a point with or out 

 of 9, 7 from below angle of areole, 10 from areole or out of 9, anastomosing 

 shortly with 9, 11 separate, 12 free. Hindwings normal, 3 and 4 separate. 

 Femora densely hairy beneath. 



This and the two following genera are sometimes mistaken for Noctum ; 

 the neuration shows that there is no real connection. The peculiar palpi 

 are also noteworthy, being alike in all three genera. D. egregia has vein 6 

 of the forewings rising out of 9, 10 also out of 9, and veins 6 and 7 of the 

 hindwings extremely closely approximated at base ; in D. atronivea these 

 points do not occur. 



79. Det. atronivea, Walk. 



(Detunda atronivea, Walk., Suppl., ii.,619 ; Chlenias (?) manxifera, Fereday, Trans. N.Z. 

 Inst., xii. (1879), 268, pi. is., 1.) 



Male, female. — 43-52 mm. Forewings elongate-triangular, costa almost 

 straight, slightly sinuate, hindmargin rounded, crenate ; white ; costa 

 marked with small quadrate black spots, inner margin with irregular 

 transverse black marks, hindmargin with elongate semi-oval black spots ; a 

 black basal spot beneath costa, with a strong posterior projection, and 

 a shorter one beneath ; a brown black-margined fascia near base, twice 

 strongly angulated ; an irregular black fascia from before middle of costa to 

 beyond middle of inner margin, interrupted above middle ; an irregular 

 brown black-margined fascia from middle of costa to anal angle, anterior 

 edge with irregular projections above and below middle, posterior edge 

 emitting an irregular branch to costa before apex, black margin strong and 

 partially broken beneath into disconnected spots. Hindwings moderate, 

 hindmargin rounded, crenate ; grey, darker posteriorly ; a faint darker 

 median shade ; a fine well-marked irregular dark grey line towards hind- 

 margin, with a sharply angulated median projection. 



A most striking and conspicuous species ; the markings vary somewhat 

 in detail. 



Wellington and Napier ; five specimens received by Mr. Fereday from 

 correspondents. 



80. Det. egregia, Feld. 

 (Chlenias egregia, Feld., cxxxi., 24 ; Fereday, Trans. N.Z. Inst., xii., 268, pi. ix., 2.) 



Male, female. — 43-47 mm. Forewings elongate-triangular, costa almost 

 straight, slightly sinuate, apex somewhat projecting, hindmargin otherwise 

 rounded, crenate ; white ; inner and hindmargins somewhat suffused with 



