OF NEW ZEALAND, 121 



front, sometimes obsolete. Thorax : the lateral margins of the pro- 

 thorax, the scutellum, post-scutellum, sometimes a spot also on the 

 disc of the mesothorax, yellow or reddish-yellow ; two ovate yellow 

 spots beneath the wings ; occasionally a reddish spot on the meta- 

 thorax in the enclosed horseshoe-shaped space at its base ; wings 

 slightly fulvo-hyaline, the nervures fuscous, the stigma and nervures 

 at the base of the wings pale ferruginous ; legs pale ferruginous, with 

 the coxse and trochanters black. Abdomen smooth and shining, with 

 three, but sometimes four, of the basal segments ferruginous. 



Length, 6—7 lines. 



Var. /3. The fourth segment more or less red. 



** Abdomen red, 

 I. PLACicus. Smith, Tram. Ent. Soc, 1876, p. 476. 



Female. Ferruginous, with the head and thorax more or less 

 black. Head black, the orbits of the eyes white ; the clypeus, cheeks, 

 and scape in front ferruginous ; the mandibles white. Thorax smooth 

 and shining; the prothorax above, and the anterior portion of the 

 mesothorax, black; the margin of the prothorax, two longitudinal 

 stripes on the mesothorax, the scutellum and post-scutellum, white ; 

 wings fulvo-hyaline, the nervures pale rufo-testaceous ; the legs 

 ferruginous, with a white spot on the coxse above, also a longi- 

 tudinal white line beneath the wings. Abdomen smooth and 

 shining. 



Length, 4 lines. 



I. EXHiLARATUs. Smith, Trans. Ent. Soc, 1876, p. 477. 



Male. Ferruginous, and variegated with yellow. Head : the 

 front, below the antennse, the mandibles and scape in front, yellow ; 

 the jflagellum and scape behind black. Thorax : the scutellum, post- 

 scutellum, and tegulae, yellow ; wings fulvo-hyaline, with the nervures 

 black, the latter pale ferruginous at the base of the wings ; the anterior 

 and intermediate legs yellow, with their coxae ferruginous ; the posterior 

 femora, trochanters, and coxae ferruginous, tibiae and tarsi yellow. 

 Abdomen ferruginous, with the basal segment yellow. 



Length, 62 lines. 



I. DECEPTUs. Smith, Trans. Ent. Soc., 1876, jw. 477. 



Female. Head and thorax black; abdomen ferruginous. The 



inner orbits of the eyes above the antennae, and sometimes a spot on 



each side of the clypeus, close to the eyes, yellow, the latter spot 



frequently obsolete; the scape in front and mandibles ferruginous. 



9 



