104 



L'll'iil palpi iPl. II., 13, H-^. 0, m) rather small, three-jointed, 1 very small ; 2 large, 

 tiUfjiiUy inerassate, pyrifonu, slightly incurved; 3 minute, aciculate. 



Lalinun (Pi. II., B, tig. 3) rather large, sulxiuaJrate. 



MiiiiiUbles (PI. II., B, fig. 4) feelile, suhquadrate, with the apical margin strongly 

 serrated. Stipes l)road, subquadrate, and flattened. 



M<uilLe (PI. II., B, fig. 5) unilobed, the lobe robust and stronglj' hooked, armed 

 with two very sharp teeth near the apex. 



Meiitnin (PI. II., B, tig. 0, j) rather narrow, suboblong, roundly dilated anteriorly. 



Liihiiim (PI. II., B, fig. G, k) short, subquadrate, sides rounded anteriorly. 



Liniiiiit (PI. II., B, fig. li, 1) rather large, much longer than the labium, moderately 

 dilated anteriorly, with the apical margin nearly straight. 



PiuiiDtU'ii small and short, anterior margin entire, posterior margin faintly sinuated, 

 with the iingles obtuse. 



S iitell'im small, rounded. 



Khitni long, almost entire. 



ll'i/(//s very large, with the usual nervures strongly marked. 



Abdomen composed of seven segments, the four basal coriaceous, and three apical 

 corneous, the pygidium scarcely exposed. 



Protliorax (PI. II., 13, fig. 2, a) with the pnisterntim very small; episterna incon- 

 spicuous ; I'piiiii'rti small, partly enclosing the coxal cavities ; coxal cavities 

 moderate, elongate-oval, contingent, partly ojien in front and behind ; the 

 indexed part of the pronotum broad and long. 



Pectus with the mcHosternum (PI. II., B, fig. 2, d) very short, deeply excavated in 

 front ; episterna very large ; epimera rather large, humeral, widely distant from 

 the coxal cavities ; coxal cavities large, circular, and widely separated. 

 mebisteriium (PI. II., B, fig. 2, g) large and long, widely distant from the sides of 

 the body, with the posterior margin between the coxae straight ; episterna very 

 large and broad, extending to the coxse ; epimera long, entirely concealed by the 

 elytra. 



Venter composed of six segments, 1 very large, the rest short, equal to each other, 

 apical entire. 



Legs anterior (PI. II., B, fig. ])) with the trochanters moderate, oval ; femora simple, 

 long and robust; tibiie long and simiile; tarsi long, four-jointed, 1 large and 

 ol)long ; 2 much shorter than the first, bifid, and furnished with a large shovel- 

 shaped process at its extremity ; 3 minute ; 4 long and rather robust ; claws 

 strong, abruptly curved, and strongly dentate beneath at the base. 

 intermediate like the anterior, but longer, with the two basal joints of the tarsi 



very deeply bifid. 

 posterior longer than the intermediate, with the second joint of the tarsi simple, 

 alike in other respects. 

 Coi(e anterior rather small, elongate, contingent, and prominent. 

 intermediate large, circubir, and widely separated. 

 posterior moderate, elongate, very widely separated, extending to the episterna. 



Meioderus bears a superficial resemblance to the Corylophina, but belongs 

 jiroperly to the Saciina on account of the narrow form of its head, and the character 

 of its maxilbiry palpi and mandibles, as well as the length of its tibia^ and tarsi. 



From Aithrolips, wliicli it resembles in the shape and number of the joints of 

 its aiitennie, Meioderus can only be distinguished by the general form of its body, 

 and by the very peculiar shaiie of its maxillarj' and labial palpi ; the former of 

 these IS abundantly conspicuous without dissection. 



