BY E. MEYRICK, B.A., F.E.S. 783 



133. Hydr. nesothetis, n. sp. 

 £. 40-46 mm. Head orange-yellow, with a dark fuscous hand 

 between antennae. Antennae blackish. Thorax purple-black, 

 with a posterior orange-yellow spot. Abdomen orange-yellow, 

 base of segments purple-blackish. Forewings purple-blackish ; 

 spots rather large, thinly scaled, light ochreous-yellow ; first 

 trapezoidal ; second similar, more elongate ; third curved-sub- 

 oblong, surmounted by a smaller triangular additional spot ; 

 fourth elongate, surmounted posteriorly by a linear spot, and 

 connected with fifth by a rather small broad-crescentic spot beneath 

 posterior extremity ; fifth roundish. Hindwings purple-blackish : 

 spots large, thinly scaled, light ochreous-yellow ; first occupying 

 basal half of wing, outer edge irregularly rounded ; second 



roundish, confluent with first in disc above and below middle, 

 enclosing a small spot of groundcolour. 



Hay, New South Wales ; two specimens. 



134. Hydr. aperta, Walk. 



(Syntomis aperta, Walk. Suppl. 72.) 

 £. 40-44 mm. Head orange, crown broadly black. Antennae 

 black, apex white. Thorax black. Abdomen orange, base of 

 segments blue-black. Forewings purplish-black ; spots moderate, 

 orange ; first subquadrate ; second trapezoidal ; third irregular 

 trapezoidal, anterior angle produced and truncate, upper side 

 sometimes surmounted by an additional dot ; fourth very elongate, 

 posterior extremity surmounted by a dot ; fifth roundish. Hind- 

 wings purplish-black ; spots rather large, orange ; first occupying 

 basal 5, outer edge strongly rounded, bisecting vein black or 

 sometimes orange ; second roundish, touching first in disc. 



Bathurst (2300 feet), New South Wales ; in March ; three 



specimens. 



135. Hydr. annulata, F. 



{Zygaena annulata, F.E.S. 389 ; Syntomis annulata, Eoisd. 

 Zyg. 122, pi. VII, 8, pi. VIII, 2; Hydrusa cingulata, Butl., 

 Journ. Linn. Soc. 1876, 352 ; H. nigriceps, ib. 352.) 



(J £. 34-40 mm. Head orange, crown broadly black. Antennae 

 black, apex white. Thorax black. Abdomen orange, base of 



