HYMENOPTERA 59 



(56) Odynerus /rater, D. T. 



Odynerns f rater, Dalla Torre, Cat. Hym. Fam. Vespidae. 



Odynerus pacific us, Blackburn, P. Manch. Soc. Vol. xxv. (1885 — 1886), p. 159; 

 (nee Kirsch). 



Niger, opacus, alis obscure caeruleo-iridescentibus, abdominis segmento prime 

 et secundo totis, vel fere totis, rufis. Clypeus emarginatus. Caput cum mesonoto 

 peropacum, subobsolete punctatum. Abdominis segmentum secundum haud quaquam 

 elevatum ; subtus, depressione lata. Thorax cum propodeo totus niger, tegulis non- 

 nunquam rufis. c/?. Long. 5-5 — 8 mm. 



Black, the wings infuscate and with slight blue iridescence. Two basal seg- 

 ments of the abdomen nearly entirely red. Clypeus distinctly emarginate, head and 

 thorax with the surface very dull, and the punctures feebly impressed, more nearly 

 obsolete in some examples than in others. Abdomen with the basal segment dull, 

 closely, but very shallowly, punctured ; second slightly shining, simply convex longi- 

 tudinally ; beneath, with the depression well-defined, meeting the apices of the costae 

 widely at its base. 



Hab. Hawaii, on the coast. Molokai and Maui coast, and lower slopes of the 

 mountains. On the latter two islands this species has the tegulae red ; those from 

 Hawaii have these parts black. 



{57) Odynerus obscure-punctatus. 



Odynerus obsciire-punctatus, Blackburn, 1. c. p. 160. 



Niger, alis infuscatis, laete caeruleo-iridescentibus, thorace cum propodeo nigro, 

 abdominis segmentis 2 basalibus maculis rubris lateralibus ornatis. Caput supra 

 antennas subobsolete punctatum. Mesonotum peropacum, plus minusve obscure et 

 subobsolete punctatum, propodei puncturatione fere obsoleta. Abdominis segmentum 

 primum aequaliter punctatum, segmenti 2 ventralis depressione lata, costarum apicibus 

 late occurrente. Long, c/ 6 — 8, ? 8 — 9 mm. (Plate L fig. 13.) 



Black, wings infuscate, and with bright blue iridescence. Mandibles more or 

 less red. Thorax and propodeum without red markings. Two basal segments of 

 the abdomen w^ith red lateral spots. Clypeus very slightly emarginate or truncate ; 

 head above the antennae with very feebly impressed puncturation. Thorax very dull, 

 with very shallow more or less obsolete punctures. Propodeum with indications of 

 large, shallow puncturation. Abdomen shining, basal segment evenly punctured ; 



8—2 



