ORCUS. 18.9 



with a slight easily removed pubescence, the fold at the posterior 

 angles well marked; scutellum very small, black; elytra rufous 

 with the margin, suture (narrowly) and 2 vittse greenish-black ; 

 the 1st vitta reaches from the callus nearly to the apex, the 2nd 

 (just before the middle) between the first and the suture, is ex- 

 tremely abbreviated; inner edge of epipleurse rufous. L. 1^ liu. 

 Art (Deyrolle). 



Orcus jantbinus. 



Orcus janthinus, Mids. Spec. p. 466. 1 (T). 

 Java (Reiche), the sides of the thorax reticulate or deeply 

 punctate. 



Orcus cyanocephalus. 



Orcus cyanocephalus, Muls. Spec. p. 467. 2. 



Port Essington (Hope). Closely allied to 0. janthinus. 



Orcus Lafertei. 



Orcus Lafertei, Muls. Op. III. p. 63 (1853) T. 



Heinisphserical, punctuation fine and sparse, but visible ; 

 colour metallic purple changing to golden, the margin of the 

 elytra and the thorax golden gi'een ; sides of thorax rugosely 

 punctate. L. 2 lin. Moreton Bay (Deyrolle, Janson). W. Aus- 

 tralia (Pry). Closely allied to 0. janthinus. 



Orcus bilunulatus. 



Coccinella bilunulata, Boisd. Voy. cle VAsirol. p. 594. 9 (1835). 



Orcus bilunulatus, Muls. Sjyec. p. 467. 3. 



N. Australia. Form subovate, rather opaque, very obsoletely 

 punctate, elytra not thickened at the margin, thorax with the 

 sides uniformly punctate. 



Orcus Australasiae. 



Coccinella Australasias, Boisd. Voy. de VAstrol. p. 593. 7 

 (1835). 



Orcus Australasice, Muls. Spec. p. 468. 4. 



Coccinella nummularis, Boisd. I.e. p. 594. 10 (1835). 



Orcus nurnmularis, Mids. Spec. p. 470: 5. 



Queensland, Victoria, Tasmania. 0. nummularis is a rare 

 variety, in which the posterior spot is divided ; I have a variety 

 in which all three spots are united. 



Orcus chalybeus. 



Coccinella chalybea, Boisd. I.e. p. 595. 11 (1835). 



Orcus chalybeus, Muls. Spec. p. 471. 6. 



Australia, Queensland, N. ... (Wallace). The punctuation 

 is fine, evident, and moderately close ; the line at the base of the 

 thorax here is at the edge. 



