95 



Abdomen with the pygidium exposed, piceous. 



Legs rather large, robust, yellow. 



Under parts ferruginous, with the edges of the ventral segments paler. 



Differs from others in its small size, rather broad form, small thorax, and deep and 



close sculpture. 

 Habitat, America. Found in the United States, and also in Guatemala by Mr. 



Champion. 



Arthrolips humilis. 



{Serieoderns) hii)nilis, Eosenhauer, Thier. Andalus. p. 347, 1856. 



L. c. y"|j lin. = '75 mm. — Brevis, ovalis, valde convexus, nitidus, profunda 

 punctatus, piceus, 25ronoto rufescenti, pilis brevibus flavis vestitus ; pronoto modico, 

 rufescenti, antice ovaliter rotundato, profunde et confertim punctato, interstitiis 

 glabris, nitidis, linea basali leviter impressa, margine anteriori modice retlexa, 

 margine basali fere recta, angulis sat acutis ; elytris brevibus, latis, pronoto multum 

 latioribus et fere duple longioribus, ad media latissimis, valde profunde et confertim 

 puuctatis, interstitiis nitidis et levissime alutaceis, stria suturali distincta, lateribus 

 marginatis et rotundatis, apicibus obtusis et rotiindatis, dilutioribus ; pygidio 

 exserto, rufo-piceo ; pedibus atque antennis brevibus, testaceis. 



Body short and broad, oval, very convex, shining, deeply punctured, piceous, with 

 the thorax rufescent, sparingly clothed with short yellow hair. 



Head moderate, testaceous ; eyes moderate ; antenn;e short, rather robust, flavescent. 



Thorax rufescent, moderate, ovally rounded in front, deeply and closely punctured, 

 with the ! interstices smooth and shining, basal line faint, anterior margin 

 moderately reflexed, basal margin almost straight, with the angles rather acute. 



Scntellum broad and rounded. 



Elytra short and broad, much broader and nearly twice longer than the thorax, 

 widest at the middle, closely and very deeply punctured, with the interstices 

 very faintly alutaceous, sutural stria distinct, sides margined and rounded, 

 extremities obtuse, rounded and pale. 



Abdomen with the pygidium exposed, rufo-piceous. 



Le(is short, robust, testaceous. 



Under imrts castaneous, head and last ventral segments pale. 



Differs from A. piceus in its smaller size, much broader form, much deeper 

 sculpture, paler colour, and rufescent thorax. 



Habitat, Europe. Found in Italy and the South of France. 



Arthrolips niger. 



A. ni;ier, Matthews, Biol. Cent.-Amer. Col. ii. pt. i. p. IIG, 1887. 



L. c. -i-^-jji lin. = •7o-"87 mm.— Ovatus, valde convexus, nitidus, sat remote 

 et sat profunde punctatus, pilis aureis sat longis vestitus, aterrimus, pronoto antice 

 pellucide albo ; pronoto parvo, antice ovaliter rotundato, leviter et remote punctato, 

 interstitiis glabris, nitidissimis, margine anteriori modice reflexa, pellucide alba, 

 margine basali vix sinuata, angulis fere rectis ; elytris pronoto latioribus, duplo 

 longioribus, magis profunde et magis confertim punctatis, ad media latissimis, 

 postice attenuatis, valde convesis, nitidissimis, apicibus rotundatis, dilutioribus ; 

 abdomine longius exserto, nigro-piceo; pedibus robustis, piceis; antennis perbrevibus, 

 articulis basalibus flavescentibus, clavis valde incrassatis, piceis. 



Body ovate, attenuated posteriorly, very convex, shining, rather remotely and rather 

 deeply punctured, clothed with rather long golden hair, deep black, with the 

 front of the thorax transparent white. 



