COLEOPTERA 593 



examples an apparently bare, round, red spot, this being- due to the direction of the 

 pubescence and not really to its absence. The smallest examples are hardly one-fourth 

 the bulk of the larger ones. 



In both forms the colour of the legs varies from red to dark, and the lateral dark 

 elytral marking, often triangular in shape, may loose its characteristic form by confluence 

 with other dark markings. It becomes a question whether X. miptus is really more 

 than a special form of A'. protc2is. Both on Lanai and Kauai though mtptus is the 

 dominant form in various localities, yet on both islands one or two individuals have 

 occurred, that appear to belong to A', proteits. It is necessarily difficult to accurately 

 distinguish between species so closely allied, each being very variable, but the average 

 size of A', mtptus is much less, it is normally more elongate, and in proportion to its 

 size the antennae of the male seem to be more strongly developed. It is the more 

 typical forms of X. protciis that are most like X. niipiits. 



Hab. Lanai, Kauai. — Probably common as I have examined over fifty examples 

 in all. 



(11) Xylctobitis pcic, sp. nov. 



Nigricans et testaceus, statura majore, pedibus e.x majore parte nigricantibus, 

 antennarum articulis duobus basalibus rufis, pronoto testaceo sive rufescente, medio 

 marginem versus posticum nigromaculato. Oculi mediocres. Antennae sat fortiter 

 elongatae, articulo quinto fortius elongato, quam quartus evidenter longiore, quam 

 sextus multo breviore, articulo septimo et sequentibus gracilibus et valde elongatis. 

 Pronotum latum, antice distinctissime marginatum, margine nitido, partibus nigri- 

 cantibus exceptis dense pallido-tomentosum, a latere visum supra baud aequaliter 

 convexum. Elytra elongatula, plaga laterali, ab humeris fere ad mediam elytrorum 

 longitudinem extensa, testacea, dense pallido tomento vestita, caeteris partibus nigro- 

 tomentosis, lineis maculis que nonnullis cinereis variegatis. Long, circa 4 mm. 



No doubt distinct from X. protciis, possibly the representative on Hawaii of 

 A', miptus of the other islands; the unique example showing an apparently bare red spot 

 on each side at about their middle in dorsal aspqct. This bareness is of course only 

 apparent, as in other species. The upper outline in profile of the pronotum is a good 

 deal sinuate, and far from presenting an evenly convex curve. The dark marking on 

 the pronotum is transverse and trilobate. The testaceous elytral markings, covered 

 with pale tomentum, merge into a sanguineous colour (without pale tomentum) on the 

 dorsum. It is quite probable that the unique example may be a remarkable colour 

 variety and that the typical form is more like that of A'. pToteus or X. niiptiis. 



Hab. Hawaii ; Kilauea, a single example was taken in July 1895. ^t is no doubt 

 a male. 



