COLEOPTERA 



217 



(3) Aielothrus limbatus, sp. nov. 



Elongatus, angustus, nigro-plceus, antennis, palpis pedibusque flavis ; prothorace 

 marginibus ferrugineis, angulis posterioribus leviter obtusis, parum rotundatis ; elytris 

 limbo (ad apicem late) testaceo-ferrugineo ; abdomine testaceo-variegato. Long. 'i\ mm. 



Antennae very long (just over 5 mm.), basal joints yellow, those beyond somewhat 

 darker. Head as broad as the thorax. Thora.x narrow, much rounded at the sides 

 and narrowed behind, hind angles obtuse and a little rounded. Elytra blackish with 

 a definite pale margin ; this marginal band is very broad at the tip, though narrow at 

 the shoulder. The apex is but little sinuate. Fourth joint of hind foot not lobed, its 

 angles, however, are acute and somewhat produced. 



Three specimens only have been found of this insect in its typical form. 



Var. .■' conco/or n. van Paulo latior fere unicolor, ferrugineus, prothorace angulis 

 posterioribus minus obtusis. Three specimens. 



Hab. Maui (Perkins, Koebele); West Maui mountains, 4000 ft., April 1894, the 

 type form and var. concolor. Lahaina, 3000 ft., Koebele. 



(4) Atelothrns longicoliis, sp. nov. 



Major, elongatus, ferrugineus, nitidus, antennis, palpis pedibusque flavis ; prothorace 

 elongato, nitido, lateribus anterius parum elongatis, parte basali elongata, angulis poste- 

 rioribus acute rectis ; elytris sat profunde striatis, ad apicem parum sinuatis. Long, 

 corp. 9 mm. 



Distinguished from the var. concolor of A. liinbatiis by the more elongate thorax 

 and the sharp hind angles. The small series of eight examples varies a good deal, and 

 it is possible there may be two species among them ; but 1 think it is more probable 

 that all belong to one variable species. 



Hab. Maui (Perkins). Haleakala, 5000 ft., March and April 1894, and at 4000 ft. 

 in May 1896. Apparently it occurred only in single examples. 



(5) AtcloiJints constrictits, sp. nov. 



Angustus, convexiusculus, niger, nitidus, antennis, palpis pedibusque flavis ; pro- 

 thorace angusto, basi recta, angulis posterioribus subrectis minutissime obtusis ; elytris 

 anguste ovatis, sat profunde striatis, apice parum sinuato. Long. corp. 7 — 7^ mm. 



The rather narrower and more convex form, and especially the narrower thorax, 

 readily distinguish this species from its congeners of similar size, such as A. longtdus. 

 The thorax is a good deal narrowed and sinuate behind, but in front the sides are less 

 rounded than usual. The antennae and legs are long and slender, the fourth joint of 

 the hind foot produced under the fifth, but not bilobed. 



Hab. Molokai (Perkins). 



2S — 2 



