H YMENOP TERA 



41 



mandibles are also red, the head above the antennae is closely and distinctly punctured, 

 the mesothorax is less dull, and more strongly punctured, the minute interstitial 

 puncturation less extremely dense, and the scutellum is sparsely and finely but evi- 

 dently punctured. 



Hab. Kona, Hawaii, on the coast and in the mountains (4000 ft.). 



(22) Odynerns niolokaiensis, sp. nov. 



Praecedenti simillimus. Fasciae abdominis i 2 pallidae plerumque plus minusve 

 obsoletae. Pronotum cum tuberculis, tegulae, scutellum, postscutellum, et clypeus 

 nonnunquam flavo-notata, vel haec omnia nigra, t^ ? fronte fortius punctata ; $ meso- 

 noto nitido, distinctissime punctate, distinguenda. c/?. Long. 7 — 10 mm. 



Extremely like the preceding, of similar form and the mandibles red in both 

 sexes. (/ with the head in front evidendy less shallowly punctured. The abdominal 

 bands are generally more or less obsolete, and in a series of specimens much less 

 evident, than in the preceding species. On the other hand sometimes not only the 

 prothorax, tegulae and postscutellum are marked with yellow, but also the clypeus, 

 the tubercles of the prothorax, and the scutellum. The ? is quite distinct by the 

 closely and deeply punctured head in front, and the entirely shining surface of the 

 thorax, with its very distinct puncturation. 



Hab. Molokai mountains (3000 ft). 



(23) Odynerus smitkii. 



Odynerus agilis, Smith, J. Linn. Soc. xiv. p. 681 (nee Smith, op. cit. iii, p. 164). 



Blackburn and Cameron, P. Manch. Soc. xxv. p. 162. 

 Odynerus smithii, Dalla Torre, Wien. Ent. Zeitg. viii. (1889), p. 124. 



Niger, alis minus infuscatis, hand evidenter caeruleo-iridescentibus. Mandibulae 

 nigrae. Frons post antennas flavo-notata. cf fasciis duabus abdominis pallidis dis- 

 tinctis, clypeo fortiter emarginato, mesonoto dense aequaliter punctato. ? mesonoto 

 opaco, (antice saltem) dense aequaliter punctato ; segmento abdominis 2 ventrali post 

 costas levissime (late tamen) depresso. cT ? . Long. b\ — 9^ mm. 



Allied to the several preceding species, but of smaller average size. Black, 

 with a small median yellow spot just behind the antennae. The mandibles are 

 dark. The d" has the two basal segments of the abdomen distinctly bordered with 

 yellow along their apical margins, and they are obscurely and very narrowly pale 

 in the single ? , which I have examined. 



(/ clypeus deeply emarginate, head above the antennae dull, closely punctured. 

 Thorax black, entirely dull ; mesothorax without sericeous appressed pubescence, 



p. F. H. 6 



