BLACKBURN AND SHarp—On some New Species and Genera of Coleoptera. 131 
Fam. NITIDULIDA. 
GONIORYCTUS. 
Gonioryctus fugitivus, n. sp.—Haud latus; testaceo-ferrugineus, elytris ab- 
domineque obscure infuscatis; prothorace minus transverso, margine posteriori 
quam anteriori vix latiori ; elytris distincte sulcatis, marginibus pone humeros haud 
explanatis. Long. 8 m.m. 
The antennz are about as stout and well developed as those of G. latus, but 
with the fourth joint shorter in proportion to the third. This species can readily 
be identified by its thorax being only slightly transverse, scarcely wider at the 
base than in front, with scarcely explanate sides, and by its elytra being more 
definedly sulcate than in the other described species of the genus, with margins 
not at all explanate, and only very narrowly reflexed. 
In the male the apical dorsal segment is much wider and less acuminate than 
in the other described species of the genus; the hind margin of this segment is 
convex, and formed by two slightly curved lines meeting in a well-defined but 
very obtuse angle, and the segment somewhat abruptly increases its downward 
slope in the apical third, so that the front and hind portions are in different planes. 
The small additional segment is ciliate. ‘The apical ventral segment has a large 
depression (extending from the base, where the depression is narrow, to the apex, 
where it occupies nearly the whole width), and its hind margin is strongly and 
widely produced in the middle, and furnished with a fringe of hairs. 
The female is unknown to me. 
A single specimen was taken by me at an elevation of about 3500 feet, on the mountains near 
Waimea, Hawaii, on a flower. 
MMs 183. 
Gonioryctus similis, n. sp.—Latus; testaceus confuse fusco-vittatus, antennis 
palpis pedibusque testaceis; prothorace transverso, angulis posticis acute rectis ; 
elytris distincte sulcatis, marginibus pone humeros anguste explanatis. Long. 
6 to 7 m.m. 
Excessively close to G. latus, but differs in the shape of the thorax, which is 
not quite so strongly transverse, and has the hinder angles slightly sharper, in the 
less obsolete sulcation of the elytra, and in the sexual characters. 
In the male the apical dorsal segment is formed as in G. latus, except that its 
hinder portion is slightly turned up, and the hind margin, instead of being simply 
rounded, is formed by two lines meeting in a well-defined angle, The apical 
ventral segment resembles that of G. latus. 
