88 SILPHID~. 
inhabit Europe and temperate North America. One species has been found at a high 
altitude in Guatemala. 
1. Anisotoma podagrica, sp.n. (Tab. III. fig. 7, 3.) 
Late ovata, validissime convexa, piceo-castanea, nitida; capite sat parvo, modice et distincte punctato, inter- 
stitiis glabris, ore rufo, mandibulis prominentibus, nigro terminatis; oculis modicis, haud prominentibus ; 
pronoto sat brevi, quam caput parum longiore, multo latiore, ad basin latissimo, distincte sed modice punc- 
tato, interstitiis glabris, lateribus marginatis, antice valde rotundatis, margine basali leviter sinuata angulis 
obtusis ; elytris semiovatis, quam caput atque pronotum vix latioribus plus quam sesqui-longioribus, pone 
humeros latissimis, postice parum attenuatis, punctorum striis octo integris impressis, interstitiis leviter sed 
distincte punctatis, lateribus marginatis; pedibus robustis, tibiis ad apices dilatatis, fortiter spinosis, 
quatuor posterioribus calcaribus longis robustis armatis, tarsis 5-, 5-, 4-articulatis, posterioribus valde 
incrassatis ; antennis sat brevibus, rufis, clavis piceis. Long. corp. 1,% lin.=3:12 millim. 
Body broadly ovate, exceedingly convex, pitchy-castaneous, shining. Head rather small, somewhat strongly 
and distinctly punctured, with the interstices smooth; mouth rufous, with the mandibles prominent, tipped 
with black ; eyes moderate, not prominent; antenne rather short, rufous, with the club piceous. Thorax 
rather short, a little longer and much broader than the head, widest at the base, distinctly but moderately 
punctured, with the interstices smooth ; sides margined and much rounded anteriorly ; basal margin faintly 
sinuated, with the angles obtuse. Scutellum large, triangular, distinctly punctured. Llytra semiovate, 
scarcely broader but more than one half longer than the head and thorax, widest behind the shoulders, 
slightly attenuated posteriorly ; marked with eight perfect rows of punctures on each elytron, with the 
interstices broad, lightly but distinctly punctured; sides margined. Legs robust; tibie dilated towards 
the apex and strongly spinose, with a long and very strong spur on the inner side of the intermediate 
and posterior pairs; tarsi 5-, 5-, 4-jointed, the posterior pair very much incrassated ; posterior femora 
strongly laminated on the hinder side, terminating at the apical extremity in a strong curved hook. 
Underparis castaneous. 
Hab. GuateMaLa, Totonicapam 10,500 feet (Champion). 
One example, found in moss in a pine-wood. 
DIETTA. 
Dietia, Sharp, Ent. Monthly Mag. xiii. p. 78 (1876). 
Body rather elongate; head and thorax narrow; elytra inflated ;. beneath very convex, with the sides 
flattened. Head very prominent, contracted posteriorly ; frontal plate reflexed at the margin ; clypeus 
distinct, deeply emarginate, furnished with four strong setw. Thorax more or less oval, with the front 
margin entire, and the base incumbent on the elytra. Scutellum triangular. Elytra entire, inflated, 
posteriorly very obtuse. Antenne inserted beneath the frontal plate, 11-jointed, 1 much longer than 
2, 2-6 gradually shorter, 7 very large, cyathiform, 8 very small, 9 very large, cyathiform, 10 cyathiform 
but smaller, 11 obtusely conic, 1-6 furnished with short sete; joints 7, 9, 10, 11 pubescent, forming a 
much incrassated and remotely articulated club. Palpi: mawillary long and slender, 4-jointed, the basal 
joint very small, the remainder nearly equal in length and breadth, the apical joint pointed ; labial long and 
slender, 3-jointed, the basal joint very small, 2 and 3 equal in length and breadth, the apical joint pointed. 
Labrum small and very prominent, deeply bifid in front, with the extremities rounded; sides and 
extremities broadly membranaceous and translucent, and furnished with a broad membranaceous 
appendage in front. Mandibles very large and strongly hooked, armed with several small teeth 
near the base. Masille bilobed: exterior lobe very small, slender, and incurved, furnished at the 
apex with short sete; inner lobe very large, fringed on the inner edge with very long sete. 
Mentum large and corneous, very broad at the base, and narrowed anteriorly ; submentum of the same 
