632 FAUNA HAWAIIENSIS 



3. Scape of antennae to a large extent and the mesopleura yellow E. rhyitcogoni. 



Scape darl^, yellow at most at the base above, mesopleura not yellow ...4. 



4. Facial impression above the interantennal elevation black, blue-black, or 



purple-black, more or less shining, at least in some aspects, finely 

 shagpeened or quite smooth, never extremely dull and densely and 



evenly shagreened over its whole surface 5. 



Facial impression generally metallic, of various hues, but very rarely as 

 above, the surface very dull, conspicuously and densely shagreened, 

 generally shallow 11. 



5. Front and hind femora black or metallic green or blue-black, the apices 



only yellow 6. 



Front and hind femora largely or entirely pale or the hind femora only pale... 7. 



6. Head brilliantly shining E. xestias. 



Head not very polished, owing to minute surface sculpture E. axestias. 



7. Hind tarsi blackish or dark fuscous above 8. 



Hind tarsi pale 9. 



8. Front femora black, metallic E. ombrias. 



Front femora yellow E. parombrias. 



9. Ovipositor black and very short ......E. dysombrias. 



Ovipositor pale, except at base 10. 



10. Facial impression smooth and highly polished E. xestops. 



Facial impression only somewhat shining, being feebly shagreened E. paraxestips. 



11. Facial impression dark, blue-black or purple-black, and the sides of the 



face between the impression and the margins of the eyes also with 



purple or purple-red reflections E. axsstops. 



Facial impression of various metallic tints, as also the sides of the face 

 adjoining it, rarely the impression itself is of a dark obscure tint and 

 only slightly metallic 12. 



12. Scape with a clear yellow or brownish yellow band at the base 13. 



Scape without a yellow band at base 14. 



13. Abdomen (e.xcept basally) largely of a very dull red or rosy colcar and 



excessively densely shagreened, the surface being very dull E. rhodias. 



Abdomen nearly uniformly metallic and in some aspects shining E.xanthodorus. 



14. Very large species 5 mm. or more ; mesonotum extremely dril and densely 



sculptured, its colour for the most part dull metallic coppery, posterior 

 femora dark and metallic outwardly in the lower j-art, the posterior 



tibiae infuscate outwardly • E. ei/prepes. 



Smaller species without some or any of the above characters 15. 



15. Front femora dark and metallic posteriorly except at the apex and more or 



less dark in front also at the base; eyes rather conspicuously hairy 



under a strong lens E. oribates. 



Front femora yellowish or brown, eyes very little hairy 16. 



16. Front tibiae yellow, not at all dark or metallic, mesonotum mostly vivid green ...E. oreias. 

 Front tibiae metallic and usually distinctly darkened above ; mesonotum 



more golden or brassy green E. chrysopinus. 



17. Antennae short, and thick, basal funicle joints short not or only a little longer 



than wide 41. 



Antennae slender, several of the basal joints of funicle elongate and much 



longer than wide 1 7 (7. 



17a. Ovipositor hardly exserted behind the abdomen 43. 



Ovipositor well exserted ,. iS. 



