ARTHROLIPS. 115 
the red half; sides margined; extremities broad, very slightly rounded. Abdomen with the pygidium 
exposed and flavescent. Legs rather short, robust, bright yellow. Underparts yellow; metasternum 
finely punctured. 
Hab. Paxama, Tolé (Champion). 
Differs from others in its ornamental colour and finer sculpture. This species has 
the form and general appearance of a Saciwm, and can only be distinguished from that 
genus by its 10-jointed antenne. 
2. Arthrolips misellus. 
Sacium misellum, Lec. Proc. Ac. Phil. vi. p. 145}. 
Oblongo-ovalis, modice convexus, confertim punctatus, nitidus, pilis brevissimis parce vestitus, piceus, pro- 
noto plus minusve rufescente ; pronoto parvo, sat confertim punctato, interstitiis nitidis, margine anteriore 
reflexa, pallida, margine basali fere recta angulis rectis; elytris quam pronotum multo latioribus et fere 
duplo longioribus, ante media latissimis, quam pronotum magis confertim et magis profunde punctatis, 
apicibus latissimis et anguste dilutioribus; pedibus atque antennis robustis, flavis. Long. corp. 7; lin.= 
1 millim. 
Head flavescent ; antenne large, yellow. horas small, rather closely punctured, with the interstices shining ; 
anterior margin reflexed, pale; basal margin nearly straight, with the angles rectangular. Scutellum 
rather large, rounded, and punctured. lytra much broader and nearly twice longer than the thorax, 
widest before the middle, more closely and more deeply punctured than the thorax, the apex very broad 
and narrowly pale. Abdomen ferruginous. Legs robust, yellow. Underparts ferruginous, with the edges 
of the segments paler. 
Hab. Nortu America, United States 1\—Guatemata, San Geronimo (Champion). 
Differs from others inits smaller size, broader form, small thorax, and deep and close 
sculpture. The two specimens found by Mr. Champion in Guatemala are rather 
smaller than those from the United States; but in every other respect are perfectly 
similar. 
3. Arthrolips ovatus, sp. n. 
Late ovatus, modice convexus, nitidus, pilis flavescentibus dense vestitus, niger, fronte pronoti atque elytrorum 
apicibus translucide albidis ; pronoto sat parvo, antice rotundato et modice elongato, modice et remote 
punctato, interstitiis glabris, nitidis, lateribus atque fronte modice reflexis et leviter marginatis, margine 
basali leviter sinuata angulis fere rectis; elytris quam pronotum parum. latioribus, duplo longioribus, et 
magis profunde punctatis, ante media latissimis, apicibus latis, valde rotundatis, et late dilutioribus ; 
pedibus atque antennis testaceis. Long. corp. 7% lin.=1 millim. 
Body broadly ovate, moderately convex, shining, densely clothed with flavescent hair, black, with the front of 
the thorax and extremities of the elytra translucent white. Thorax rather small, rounded and rather 
elongate in front, widest at the base ; moderately and remotely punctured, with the interstices smooth and 
shining; sides and front moderately reflexed and slightly margined; basal margin faintly sinuated, with 
the angles nearly rectangular. Scutellum large, rounded, and punctured. lytra rather broader, twice 
longer, and more deeply punctured than the thorax, widest before the middle; extremities broad, much 
rounded, and broadly pale. Legs and antenne testaceous. Underparts testaceous. 
Hab. Mzxico, Toxpam (Sal/é). 
One example. Differs from A. hirsutus in its smaller thorax, with the sides and front 
Q* 2 
