116 CORYLOPHIDZ. 
much less broadly reflexed, more deeply punctured elytra, flavescent pubescence, and 
pale legs and underparts. 
4. Arthrolips niger, sp. n. 
Ovatus, valde convexus, nitidus, pilis sat longis aureis vestitus, sat profunde sat sparse punctatus, aterrimus, 
pronoto antice albido translucido ; pronoto parvo, antice angustato, leviter et remote punctato, interstitiis 
glabris, nitidissimis, margine anteriore modice reflexa, albida translucida, margine basali vix sinuata angulis 
fere rectis ; elytris quam pronotum latioribus et duplo longioribus, ad media latissimis, postice attenuatis, 
nitidis, valde convexis, quam pronotum magis confertim et magis profunde punctatis, apicibus rotundatis, 
dilutioribus ; abdomine longius exserto, nigro-piceo ; pedibus robustis, piceis ; antennarum articulis basa- 
libus pallidis, clava obscuriore. Long. corp. + lin. =0°87 millim. 
Head piceous ; antennz with the basal joints pale, and the club dusky and much incrassated. Thoraw small, 
narrowed in front, lightly and remotely punctured, with the interstices smooth and shining; anterior 
margin moderately reflexed, transparent white ; basal margin scarcely sinuated, with the angles nearly 
rectangular. Scutellum very small, rounded, and punctured. lytra broader and twice longer than the 
thorax, widest at the middle, attenuated posteriorly, very convex and shining, more closely and more 
deeply punctured than the thorax, the apex rounded and pale. Abdomen much exposed, pitchy-black. 
Legs robust, piceous. Underparts piceous, with the edges of the segments broadly ferruginous. 
Hab. Panama, Bugaba (Champion). One specimen only. 
Differs from the other species of the genus in its small size, ovate and posteriorly 
attenuated form, very convex and shining surface, deep black colour, and dark legs. 
5. Arthrolips hirsutus, sp.n. (Tab. III. fig. 18.) 
Ovalis, sat latus, aterrimus, convexus, nitidus, remote punctatus, pilis elongatis suberectis, nigris, sepe abrasis, 
parce vestitus ; pronoto sat magno, ad basin latissimo, modice et remote punctato, interstitiis glabris, niti- 
dissimis, margine anteriore late reflexa, dilutissime translucida, margine basali leviter sinuata angulis fere 
rectis; elytris latis, convexissimis, quam pronotum latioribus et plus quam sesqui-longioribus, prope media 
latissimis, magis leviter magisque remote punctatis, lateribus marginatis, apicibus valde rotundatis, anguste 
dilutioribus ; antennis atque pedibus robustis, piceis. Long. corp. ui lin. ="87—1°25 millim. 
Hlead ferruginous; antennee rather large, piceous. Thorax rather large, widest at the base, moderately and 
remotely punctured, with the interstices smooth and very shining; anterior margin broadly reflexed, very 
pale and transparent; basal margin slightly sinuated, with the angles nearly rectangular. Scutellum 
moderate, rounded, and punctured. lytra clothed with long suberect black hairs (which are often more 
or less rubbed off), broad, very convex, broader and more than half as long again as the thorax, widest 
near the middle, more faintly and more remotely punctured ; sides margined ; apex much rounded, narrowly 
pale. Abdomen slightly exposed, ferruginous. Legs robust, piceous. Underparts piceous, with the head, 
coxee, and edges of the ventral segments ferruginous. 
Hab. GuateMaLa, ‘Tamahu, Senahu, Zapote (Champion); Nicaragua, Chontales 
(Janson). 
This insect varies much in size, but is perfectly uniform in colour and sculpture. It 
differs from the allied species in its short, broad form, shining surface, and deep black 
colour; and in some examples by the long black hair on all parts of the body, but 
this covering of hair is often partially, and sometimes wholly, abraded. 
