188 Mr. II. C. L. Perkins' 



Odyncrns cypris, sp. nov. 



Niger, inamlibulis clypeiqiie apice rufi.s, abdominis segmento primo 

 postice llavoiiiarginato (an semper?). Frons capitis dense punctata, 

 clypeo distincte emarginato. Mesonotum sparsini punctatnm, in- 

 terstitiis etiam distincte punctulatis. Propodeum lajve, nitidvim, 

 parce punctatum. Abdominis segmentum secundum supra fere 

 sequaliter convexum ; subtus, post sulcum transversum fortiter 

 abrupte elevatum, costis nullis, suico nitido, depressione post 

 sulcum angustissima. Ala} fuscaj, nitentes, violaceo-iridesceiites. 

 ^. Long. ad. apicem abd. seg. 2<ii- 8 m.m. 



Hall. Puna, Hawaii. 



Odynerus cutretus, sp. nov. 



Niger, mandibulis px majore parte vel totis nigris, fronte media 

 post antennas siepe rubronotata ; alis infuscatis, cajruleo-iridescent- 

 ibus. Frons capitis densissinie punctata, apice clypei subimpresso, 

 truncato aut vix emarginato. Mesonotum nitidum, fortiter dense 

 punctatum, propodeo loevi, postice dense punctato. Abdominis 

 segmentum 2 dorsale simpliciter convexum, liaudquaquam eleva- 

 tum ; ventrale post sulciun transversum Ibrtissime abrupte elevatum, 

 sulco nitido. ^ $. Long. 7-10 m.m. 



Sp. 0. heterochfomo, atfinis, thoi'ace nitido, multo grossius punc- 

 tato, et sulco transverso segmenti ventralis 2' nitido distinctissinia. 



Ilah. Hawaii, in several districts. 



Odyncrns liohmiclas, sp. n. 



Niger, mandibulis rufis, alis infuscatis ca^ruleo-iridescentibus. 

 Frons capitis densissinie punctata, clypei apice plus minusve im- 

 presso, levissiine emarginato aut truncato. Mesonotum grossius 

 dense punctatum, baud opacum, propodeo postice grosse punctato. 

 Abdominis segmentum 2 ventrale post costas liaudquaquam 

 elevatum, costis ipsis brevissimis. depressione post costas nulla. 

 $ ?. Long. G-10 m.m. 



Sp. Imic atfinis est 0. cuanoptcri/x, Perk., qui thorace per pacn, 

 nmlu) subtilius punctato, et abdomine ssepius aut supra aut infra 

 rulbnolato, conspicue dilfert. 



JIah. Widely distributed on Hawaii, but not generally 

 common. 



