LEPTOSTYLUS. 147 
recorded from North America and a small number from the West Indies. None have 
yet been described from temperate latitudes in South America or even from South 
Brazil, whilst Central America is rich in species. Mexico and the adjoining regions 
may be considered, therefore, as in the case of Lagochirus, the headquarters of the genus. 
I suspect Erphea of Erichson (Wiegm. Arch. 1847, i. p. 144) to be synonymous with 
Leptostylus, or at least to include the species with prominent mesosternum ; but no 
author seems to have recognized the genus since it was described, and I have not seen 
the species on which it is founded. 
1. Leptostylus viriditinctus. (Tab. XI. fig. 16.) 
Leptostylus viriditinctus, Bates, Trans. Ent. Soc. 1872, p. 210°. 
Hab. Nicaraeva, Chontales (Belt 1, Janson). 
2. Leptostylus metallicus. 
L. viriditincto similis, sed differt elytrorum carinis prope basin valde elevatis et arcuatis sic ut in gen. Stevrastoma. 
Breviter ovatus, fuscus, thorace lateribus elytrisque fere totis aurato-viridibus sericeo-nitentibus ; oculis 
parvis; antennis fuscis, articulis 3° et 4° medio cinereo-annulatis, scapo basi gracili gradatim dilatato, infra 
vix planato, apice paullulum producto; thorace parvo, medio punctato tuberculis lateralibus distinctis, coni- 
cis, dorsalibus quinque elevatis; elytris sic ut in ZL. viriditincto, apice angustatis, sinuato-truncatis, angulis 
(precipue exteriore) productis, dorso utrinque bicostatis plurifasciculatis, costa interiore valde arcuata et 
elevata; corpore subtus nigro-nitido, lateribus fulvo-tomentosis ; prosterno latissimo convexo, mesosterno 
-antice concavo ; femoribus minus incrassatis, posticis apice extus dentatis. 
Long. 6 lin. 
Hab. Costa Rica (Dr. Horn). 
8. Leptostylus hilaris. (Tab. XI. fig. 17.) 
Leptostylus hilaris, Bates, Trans. Ent. Soc. 1872, p. 211°. 
Hab. Nicaraaua, Chontales (Belt 1, Janson). 
4. Leptostylus subfurcatus. (Tab. XI. fig. 8.) 
L. hilari proxime affinis, postice magis attenuatus: griseus viridi tinctus, elytris macula laterali mediana (a 
margine distante), fascia recta maculari posteriore maculaque marginali ante apicem nigro-fuscis, notulis 
dorsalibus basin versus, altera subsuturali prope apicem fulvis; thorace tuberculo laterali haud prominulo ; 
antennis cinereis fusco guttatis; elytris juxta apicem attenuatis, apice breviter sinuato-truncatis, angulis 
exterioribus divaricatis, dorso multifasciculato, carina centro-basali elevata, tota basi grosse punctata. 
Long. 5-6 lin. 
Hab. Nicaraeua, Chontales (Belt). 
Differs from L. hilaris by the grey, not hoary-white, colour of the light parts of its 
upper surface and the silky-green tinge in places, also by the less distinct lateral 
tubercles of the thorax and the more produced apices of the elytra. A distinguishing 
character is also furnished by the position of the dark median spot. on the elytra, which 
does not reach the margin. 
u 2 
