LARVA OF PSEUDOTERPNA PERCOMPTARIA RAINBOW. 81 



DESCRIPTrON OF the LARVA of PSEUDOTERPNA 

 PERCOMPTARIA, Gn. 



By W. J. Rainbow, Entomologist. 

 (Plate xviii.) 



Family GeometriDjE. 



Sub-Family Boarmiin^e. 



Genus Pseudoterpna, Meyr. 



PsEUDOTERPNA PERCOMPTARIA, Gu. 



(PI. xviii.. Figs. 1, 1«, \h, \c, \d.) 



Dorsal surface sage green with small black spots ; sides con- 

 colorous, with narrow longitudinal median stripes of pale yellow, 

 the latter bordered with green ; lateral surfaces sparingly dotted 

 with minute black spots ; in addition to these, the fourth, fifth, 

 sixth, seventh and eighth segments have each a small red spot, 

 seated just below the spiracular oriface ; spiracles white, oval, 

 ringed with black ; ventral surface concolorous, with median 

 stripe of pale yellow. 



The head consists of an elongated, hard, chitinous process, 

 wedge-shaped, deeply grooved down the centre both above and 

 underneath ; back of head sage-green at base, apex suffused with 

 pink and tipped with black, the surface finely granulated, and 

 sparingly dotted with black ; sides granulated, sage-green, with a 

 median longitudinal line of dark brown commencing at apex, and 

 terminating rather lower down than half-way ; in front sage-green 

 at base, suffused with pink, and thickly furnished with minute 

 brown granules ; mouth parts of a dingy pinkish colour. 



Legs short, closely grouped together, pale yellowish ; pro-legs 

 small, grouped together, and attached to the two final segments. 



Anal segment terminating with an elongated, chitinous, bifur- 

 cated wedge-shaped process, the surface of which is granulated ; 

 sage-green at base, black at tips. 



The specimen described was obtained by Mr. Sydney L. Evans, 

 at Guyra, near Inverell, and was forwarded by him to the Aus- 

 tralian Museum, where it was received on the 12th of April, 1897. 

 Two days afterwards it entered the pupal stage. In the interval, 

 however, that elapsed between the date it was received and the 

 time of its pupating, the notes and sketches necessary for a 

 description of the creature were made. The pupa was attached 

 to a stick by its tail, and had a silken girdle across the middle. 



