68 FAUNA HAWAIIENSIS 



(74) Odynerus nesotrephes, sp. nov. 



Niger, alis infuscatis, subcaeruleo-iridescentibus, tegulis cum postscutello flavo- 

 notatis, abdominis duobus segmentis basalibus postice flavo-marginatis. Clypeus 

 distincte emarginatus. Mesonotum opacum, subtiliter et inaequaliter punctatum, 

 interstitiis densissime et minutissime ruguloso-punctatis. Propodeum subobsolete 

 punctatum, concavitate rugosa. Abdominis segmentum 2 ventrale depressione lata, 

 minus alta. ?. Long. 8 mm. 



Female black, with the tegulae and postscutellum spotted with yellow, and the 

 hind margin of the two basal abdominal segments of the same colour. Wings infus- 

 cate with very little blue iridescence. Clypeus distinctly emarginate, head above 

 the antennae dull with somewhat remote and fine puncturation. Mesothorax dull, 

 finely and irregularly punctured, more sparsely behind than on the anterior part. 

 Propodeum with some large shallow punctures in front, the concavity rugose. 

 Abdomen dull, covered with sericeous pubescence, the second segment not raised, 

 ordinarily convex longitudinally ; beneath with a well-marked, wide, but shallow 

 depression, costae longer than the basal part of the segment, strong, but not very 

 closely set. 



Hab. Waialua, Oahu, a single example on the coast. 



(75) Odynerus lanaiensis, sp. nov. 



Niger, alis plus minusve infuscatis et caeruleo-iridescentibus. Clypeus vix 

 emarginatus. Mesonotum dense fortiter punctatum. Propodeum opacum rugoso- 

 punctatum. Abdominis segmentum secundum vix elevatum ; subtus, depressione 

 distincta nulla, c/'?. Long. 6"5 — 10 mm. 



Black, the wings infuscate, but not deeply, except along the costal margin of 

 the anterior pair, their iridescence blue. 



Apex of the clypeus hardly emarginate, head above the antennae densely punc- 

 tured. Mesothorax strongly and closely punctured, the punctures rather larger in 

 the d", and the surface of the thorax more dull. Propodeum rugose. Basal segment 

 of the abdomen somewhat evenly punctured ; second slighdy raised from the base ; 

 beneath, somewhat flat beyond the costae, with no depression, or at the most with 

 only a vague indication of one. 



Hab. Lanai, on the coast at Manele. 



