634 FAUNA HAWAIIENSIS 



Head in front above the facial impression rather shining and smoother ; 



mesonotal ridges not reddish E. heterosomus. 



33. Smaller; marginal vein yellow, nearly uniform in colour and like the stigmal ; 



facial impression sordid metallic E. rhododorus. 



Larger ; marginal vein infuscate, much paler at the extreme base, darker than 



the stigmal ; facial impression green metallic — E. amaurndes. 



34. Scape of antennae yellow or brownish yellow basally %%. 



Scape not yellow at the base 35. 



35. Ovipositor very short about half the length of the hind tarsi E. achreiodes. 



Ovipositor more than half the length of the hind tarsi 36. 



36. Front tibiae at most a little browner and slightly metallic above E. aporostichus. 



Front tibiae with a dark conspicuous metallic line above 37. 



37. Middle tibiae with a dark metallic line above ; facial impression brightly 



metallic green or golden E. eustichus. 



Middle tibiae at most a little deeper brown above and not or hardly metallic ; 



facial impression of sordid metallic colour E. pelodes. 



38. Fully the basal half of the scape of antennae yellow E. kemixanthus. 



Less than half of the scape yellow 39. 



39. Front tibiae above yellow without a conspicuous dark metallic line ; ab- 



dominal pleura brightly metallic basally, dark apically E. pauroxanthits. 



Front tibiae above with a dark metallic line ; abdominal pleura not so 

 coloured, very dull and densely sculptured 40. 



40. Mesothoracic pleura with distinct green metallic tint in part E. leucothrix. 



Mesothoracic pleura without distinct green tint E. paraleucothrix. 



41. Mesonotum medially fine metallic green, the ridges purple and strongly 



contrasted with the other E. basileius. 



Mesonotum without these strongly contrasted colours 42. 



42. Middle tibiae above dark and metallic except at the extreme base and at the 



apex; hind tarsi black or dark above, except at the base E. melanotarsus. 



Middle tibiae above only somewhat sordid in the middle ; hind tarsi mostly 



yellow E. xaiithoiarsiis. 



43. Hind femora and tibiae dark, the latter yellow apically ; middle legs entirely 



yellow, excepting the tips of the tarsi E. dysoplias. 



(i) Eupelnms setiger, sp. nov. 



Very dull, the head and thorax very densely shagreened and clothed with short, 

 thick, white, subappressed setae. Head posteriorly with a greenish metallic tinge in 

 front of this obscure coppery; mesonotum posteriorly dark fuscous, very little 

 metallic, in front and externally to the ridges dull reddish, scutellum and axillae still 

 more conspicuously red, mesopleura with a dull green tint in the middle. Abdomen 

 shining metallic red at the extreme base, for the rest dull bluish or greenish black and 

 densely sculptured, its sides with white setae like those of the thorax. Legs for the 

 most part purplish black, the knee joints pale, basal joint of the front and middle tarsi 

 pale at base and the former also at the apex, second and fourth joints of front tarsi 

 brownish above, third yellow, fifth black ; third and fourth joints of middle tarsi yellow, 

 hind tarsi like the front ones with third joint entirely yellow, the second and fourth 



