154 LONGICORNIA. 
basi rufescentibus, apice et tarsis nigris ; elytris tuberculis elongatis tribus, primo centrali basali, secundo 
mediano, tertio supra declivitatem posteriorem, lineisque elevatis submarginalibus interruptis basin versus 
obsoletis. , 
Long. 2 lin. 
Hab. GuateMAa, Capetillo (Champion). 
2. Alphinellus minimus. 
Minor et minus convexus, rufescenti-cinereus, crebre punctatus, thorace disco elytrisque maculis in fascias tres 
digestis (prima basali, secunda mediana tertiaque supra declivitatem posteriorem) et macula magna 
laterali fuscis; antennis pedibusque pallide rufo-testaceis, fusco maculatis; thorace latiore, transverso, 
antice gibboso, spina laterali multo breviore sed acuta; elytris tuberculis elongatis tribus, primo centro- 
basali magis elevato cariniformi, lineis elevatis utrinque submarginalibus vix elevatis. 
Long. 1 lin. 
Hab. GuatemMaua, Zapote (Champion). 
3. Alphinellus subcornutus. | 
Rufescenti-fuscus, plagis nonnullis obscurioribus, antennis rufo-testaceis, articulis 3° et 4° apice, 6°-11™ totis 
nigro-fuscis, tibiis apice nigris ; tuberibus antenniferis intus conice elevatis subcornutis ; thorace antice 
valde gibboso trituberoso, basi constricta et depressa, lateribus ante basin obtuse prominulis haud spinosis ; 
elytris carinula centro-basali, altera simili anteapicali tertiaque minore mediana, lateribus utrinque lineis 
duabus elevatis. 
Long. 13 lin. 
Hab. GuateMa.a, Teleman (Champion). 
ELEOTHINUS. 
Leptostylo et Leiopo affinis. Corpus elongato-ovatum, modice convexum, supra inzequale, fasciculatum, interdum 
hirsutum. Caput inter antennas concavum, fronte verticali, infra oculos sat prolongatum. Antenne corpore 
fere duplo longiores, setacex, sparsissime setosee ; scapus capite cum thorace longior, subtus subplanatus, vix 
flexuosus; articuli 8%-11™ subequales. Thorax fere ut in genere @dopeza, convexo, disco antice bituber- 
culato basi depresso, lateribus ante basin breviter spinosis, a spina usque ad marginem anteriorem subro- 
tundatim angustato. Elytra elongato-ovata, postice attenuata, apice oblique sinuato-truncata, angulo 
exteriore producto, disco subcostata, pluripenicillata. Pedes modice elongati; femora clavata; tarsi 
postici breves, articulo primo duobus sequentibus equali. Prosternum sat latum; mesosternum latum, 
postice angustatum. Segmentum apicale ventrale ( ¢?) late emarginato-truncatum, dorsale late obtusum. 
This new genus is founded for the reception of three species from Guatemala which 
partake of the characters of both Leptostylus and Leiopus, and cannot be included in 
either without rendering their definition impossible. They have the broad pro- and meso- 
sterna, the cristulated upper surface of the body, and short hind tarsi of Leptostylus, 
with the general form, and particularly of the thorax, of Leiopus. In general form and 
in the shape of the apices of the elytra one of the species much resembles Leptostylus 
premorsus of the West Indies, though much smaller. 
1. Eleothinus abstrusus. 
Fulvescenti-fuscus, elytris dimidio basali obscuriore, thorace vitta abbreviata dorsali, altera utrinque obliqua, 
scutello penicillisque elytrorum nigris; elytris disco posteriore tricostulatis, costulis ante apicem con- 
