66 



Sacium coUare. 



S. cnllare, Matthews, Biol. Cent.-Amer. Col. ii. pt. i. p. 112, 1887. 



L- c. i"g— ft lin. - 1-1"12 mm. — Ovale, sat obtusum, modice convexum, 

 iiitidissimum, pilis flavescentibus dense vestitum, castaneum, pronoto flavescenti ; 

 jironoto modico, seniiovaii, ad basim latis.siinum, minute sed distincte punctate, 

 iiiterstitiis giabris, nitidis, fronte et lateribus levittr marginalia et levissime reflexis, 

 margine basali leviter bisinuata, angulis fere rectis ; elytris sat brevibus, jironoto 

 baud latiorilnis, fere sesqui longioribus, prope humeros latissimis, minute sed 

 distinctissime punctatis, interstitiis giabris, nitidis, lateribus leviter marginatis, 

 apicibus latis, valde rotundatis, dilutioribus ; pedibus atque antennis sat brevibus, 

 ferrugineis. 



Body oval, ratber obtuse, moderately convex, very shining, thickly clothed with 



tlavescent hair, castaneous, with the thorax tlavescent. 

 Jlead piceous, eyes moderate ; antennae rather short, ferruginous. 

 Thortix moderate, semioval, widest at the base, minutely but distinctly punctured, 



with the interstices smooth and shining, front and sides slightly margined and 



very slightly reflexed ; basal margin faintly bisiuuated, with the angles nearly 



rectangular. 

 Scutilliim moderate, obtusely triangular. 

 Elytra rather short, one-half longer but not broader than the thorax, widest near 



the shoulders, minutely but very distinctly punctured, with the interstices 



smooth and shining, sides slightly margined, extremities broad and much 



rounded, paler. 

 Legs rather short, ferruginous. 

 Under parts castaneous. 

 Differs from iS. nuiniituitum in its small size, very slightly reflexed margins of the 



thorax, and in scul|>ture. 

 Habitat, North America. Found in Mexico (Salle). 



Sacium marginatum. 



S. manjinatum, Matthews, Biol. Cent.-Amer. Col. ii. pt. i. p. 112, 1887. 



L. c. iVT^B^iii' = 1~1'12 mm. — Ovale, modice convexum, nitidum, distincte 

 punctatum, pilis flavis vestitum, piceum, pronoti margine anteriori flava ; pronoto 

 lato, margine anteriori rotundatii, late reflexa, flavii, distincte et sat profunde 

 punctato, interstitiis giabris, nitidis, margine basali vix sinuata, angulis rectis ; 

 elytris pronoto piirum latioribus, duplo longioribus, prope humeros latissimis, 

 pronoto magis i^rofunde punctatis, apicibus sat angustatis, valde rotundatis, 

 dilutioribus ; pedibus robustis, flavis ; antennis obscurioribus. 



Body oval, moderatelj' convex, shining, distinctl}' punctured, clothed with yellow 



hair, piceous, with the whole anterior margin of the thorax yellow. 

 Head small, ferruginous ; eyes moderate ; antennae dusky yellow, with the club 



darker. 

 Thorax broad, anterior margin broadly reflexed, yellow, distinctly and rather deeply 



punctured, with the interstices smooth and shining, basal margin scarcely 



sinuated, with the angles right angles. 

 Seutellum rather large, rounded, and deeply punctured. 

 Elytra rather broader, twice longer, and more deeply punctured than the thorax, 



widest near the shoulders, rather narrowed posteriorly, extremities much 



rounded and pale. 

 Abdomen with the pygidium exposed, ferruginous. 



