LOBOPODA. 39] 
long, wide at the base, rather rapidly narrowing from a little below the shoulders, somewhat deeply 
striate, the strie very closely punctate, the interstices feebly convex on the basal balf of the disc, strongly 
so at the sides and beyond the middle, and with scattered rather coarse punctures, the apices slightly 
produced and more or less sharply pointed in the female; beneath very sparsely punctured; legs and 
antenne more or less ferruginous, the femora usually darker. 
$. Anterior tibie slightly sinuous within. The fifth ventral segment broadly and semicircularly excavate in 
the middle behind, the excavation extending to the apical margin. The lateral lobes of the last ventral 
segment long and curved, slightly setose within, very broad towards the base, narrowing outwardly, and 
hooked upwards at the apex; the central sheath rather abruptly narrowed and acuminate at the apex, 
the apical portion short, feebly setose beneath, and slightly recurved, the extreme apex somewhat hooked. 
(Figg. 3, 3.4.) 
Length 123-133 millim.; breadth 33-44 millim. (¢ 9.) 
Hab. Mexico, Jalapa (Hoge), Orizaba (Sallé); Britise Honpuras (Blancaneaux) ; 
GuatemaLa, El Reposo, Zapote, Tamahu, Purula (Champion); Nicaragua, Chontales 
(Belt); Panama, Volcan de Chiriqui (Champion). 
Numerous examples. ‘This species is chiefly distinguished amongst its allies by the 
sharp and laterally extended hind angles of the thorax; and by the interstices of the 
elytra being strongly convex at the sides and apex, and only feebly so on the anterior 
half of the disc. The very deep semicircular excavation at the apex of the fifth ventral 
segment is a marked male character, as also is the structure of the cedeagus. In some 
examples the hind angles of the thorax are less acute than in others; the apices of the 
elytra in the female are always more or less produced and pointed. 
5. Lobopoda tristis. (Tab. XVII. figg. 4, 4 a.) 
Moderately elongate, rather broad, brownish-piceous or black, shining, sparsely pubescent. Head with scattered, 
rather coarse punctures; eyes very large and approximate in the male, smaller and moderately widely 
separated in the female; prothorax sparsely, but somewhat coarsely, punctured, the disc very shallowly 
canaliculate, and shallowly transversely impressed before the base, the basal fovee deep, the sides slightly 
sinuate behind, the hind angles somewhat acute ; elytra moderately long, a little rounded at the sides, and 
gradually narrowing from a little below the base, moderately deeply striate, the strie closely punctured, 
the interstices slightly convex, and with scattered rather coarse punctures, the apices feebly mucronate 
in the female; beneath sparingly, but somewhat coarsely, punctured, the metasternum rather more closely 
so in the male; antenne ferruginous ; legs brownish-piceous, the tarsi more or less ferruginous. 
3. Anterior tibiz widened on the inner side from near the base, and thence to the apex a little sinuous 
within. The lateral lobes of the last ventral segment long and twisted, obliquely truncate at the apex, 
widened and subangularly raised on each side inwardly and outwardly (between which is a deep groove) 
towards the base, the inner edges finely serrate within ; the central sheath very broad, the apical portion 
narrower, setose beneath, spoon-shaped, and recurved, the sheath itself armed just behind the spoon-shaped 
piece with two transversely placed rounded prominences above. (Figg. 4, 4a.) 
Length 113-18 millim.; breadth 44 millim. (¢ @-) 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Numerous examples. Shorter, smaller, and with the elytra rather more parallel and 
the striz shallower than in L. panamensis ; the hind angles of the thorax more acute, 
&c. The narrower form, more shallowly impressed thorax, and feebly mucronate apices 
of the elytra (in the female) separate L. tristis from L. mucronata. The complicated 
structure of the cedeagus of the male will be best understood from our figure. 
