BLackBurN AND SHArP—On some New Species and Genera of Coleoptera. 149 
being in fact slightly longer than the much broader subglobular second joint; of 
joints four to ten, each is a little broader than its predecessor, the tenth being 
strongly transverse; terminal joint rather large, longer than the two preceding 
together. The thorax is sinuate on each ‘side, the hind angles being a little pro- 
duced backwards and acute; its pubescence is rather long and scanty, but it is 
almost without punctuation. Elytra rather elongate, with pubescence and obscure 
punctuation similar to the thorax; from the shoulder of each there descends a yel- 
lowish fascia towards the suture, but the two do not quite meet, and behind the 
middle there is a large yellow spot. 
I have named this species in honour of Dr. Horace F. Jayne, who has recently published a memoir 
on the North American allies, adding considerably to our knowledge of these neglected insects. I have 
received only one pair of L. jaynei from Mr. Blackburn as No. 392; they were beaten from dead wood 
on Haleakala, Maui, and I am told by Mr. Blackburn that the markings of the elytra are very variable. 
D: 8. 
Labrocerus concolor, n. sp.—-Minus elongatus, niger, nigro-pubescens, antennis 
in medio tarsisque picescentibus; elytris subtiliter granulatis, granulis versus apicem 
obsoletis. Long. 38 m.m. 
This species, so far as I can judge from a single male, is allied to L. jaynei, 
but is abundantly distinct by the shorter form and by the granulate sculpture of 
the elytra; the male antenne are similarly formed, but are less elongate, and have 
a considerably shorter terminal joint. 
Sent by Mr. Blackburn as No. 461, and found by beating dead branches of trees at an elevation of 
about 6000 feet on Mauna Loa, Hawaii. 
DAS: 
Labrocerus obscurus, n. sp.—Minus elongatus, haud dense pubescens, niger, 
antennis obscure testaceis; elytris obscure granulatis, maculis quatuor fulvis 
(duabus anterioribus fere in fasciam curvatam conjunctis) notatis. Long. 3 m.m. 
This species is almost of the shape of L. concolor, Sh., with the markings cf 
L. jaynei, Sh. The pubescence resembles that of L. jaynei; and the elytra are 
granulate as in L. concolor. My single specimen appears to be a female, and dif- 
fers from the same sex in the other species of the genus in having considerably 
shorter and more slender antennee. 
I have a single female specimen of Labrocerus from the Waianae mountains, 
Oahu; apparently very close to L. jaynei, but narrower and more elongate, with 
more slender antenne, and dark slender legs. Unfortunately, it is not in 
sufficiently good condition to serve as the type of a new species. 
Taken by beating dead branches of trees on Mauna Loa, Hawaii, at an elevation of about 6000 feete 
UB}. 
