40 FAUNA HAWAIIENSIS 



sionc lata, minus alta. ? minus sericeo-pubescens. Clypeus minus fortiter sed distincte 

 emarginatus. Mesonotum subtiliter remote punctatum (puncturatione nonnunquam fere 

 obsoleta), interstitiis distincte densissime punctulatis. Mandibulae plerumque rufae. 

 cf?. Long. 6| — 10^ mm. (Plate I. fig. 20.) 



Male black, dull, with an appressed sericeous pubescence, often with the apical 

 margin of the first and second abdominal segments narrowly yellow, or with one or 

 other of them so coloured. Mandibles for the most part red. Clypeus very deeply 

 emarginate, the emargination forming rather more than a semicircle. Head above 

 the antennae dull, finely and feebly subobsoletely punctured. Mesothorax and scutellum 

 with an appressed pubescence concealing the surface which is hardly visibly punctured. 

 Propodeum with feeble subobsolete punctures, giving it generally a reticulately rugose 

 appearance in front. Abdomen dull, with sericeous pubescence, and very feebly 

 punctured. Second segment simple above, not raised from the base ; beneath with 

 the depression shallow, meeting the apices of the costae widely, the surface dull, 

 somewhat evenly punctured beyond the depression. 



Female rather unlike the d", much less densely clothed with sericeous pubescence. 

 Mandibles entirely red, or more or less dark. The clypeus, although distinctly dentately- 

 emarginate, is much less deeply so than that of the rf". Mesothorax dull, with fine 

 sparse punctures, nearly obsolete in some examples, in others more distinct ; between 

 these there is an exceedingly close and distinct minute puncturation. Propodeum 

 rugosely punctate as in the ^. Abdomen less dull, owing to the pubescence being 

 much less dense. 



Hab. Mountains of Maui and Hawaii in open localities from 4000 — 10,000 ft. 

 Common. 



(21) Odynej-iis scoriaceus, sp. nov. 



Praecedenti cognatissimus. </ margine apicali segmentorum 2 basalium flavo, 

 nonnunquam etiam pronoto postscutello, tegulisque flavo-notatis. Mandibulae rufae. 

 Frons dense subgrosse (nee fortiter) punctata. c/ mesonoto distinctius punctato, 

 ? fronte dense distincteque, scutello evidenter subtiliter punctato, discernenda. ^ ? . 

 Long. 7 — II mm. 



Very like the preceding which it exactly resembles in form, c/' with two 

 basal segments apparendy always pale along their apical margins. The prothorax, 

 postscutellum and tegulae are also sometimes spotted with yellow ; the mandibles 

 are red. The head above the antennae is more largely and closely and less 

 obsoletely punctured, than that of the preceding, the sericeous pubescence of the 

 thorax is less dense and the puncturation larger and more distinct. In the ? the 



