SCAPHISOMA. 171 
1 very small; 2 and 3 long, subcylindric, nearly equal; 4 much the longest, acuminate. Labial pal 
rather large, distinctly 4-jointed—1, 2, 8 transverse, gradually decreasing in size; joint 4 the longest, 
subcylindric, much incurved, with the apex obtuse ; joints 1 and 2 each with an erect seta on the inner 
side of the apex. Labrum large, rounded, and narrowly transparent at the sides, emarginate in front, 
and furnished on the disc with strong sete. Mandibles robust, not bifid at the apex, furnished with a 
ciliated appendage above the middle. Mawille moderate, bilobed; outer lobe large, much dilated, and 
shortly pectinated at the apex; inner lobe small and short, pectinated at the apex. Mentwm elongate- 
oblong, concave at the sides. Labium rather small, suboblong, widest at the apex. Lingua very large, 
much expanded laterally, concave in front, and strengthened with a strong medial costa. Prosternum 
small; episterna rather long; epimera very small, linear ; coxal cavities extending into the mesosternum. 
Mesosternum moderate; ¢pisterna small, antehumeral; epimera small, linear, widely distant from the 
coxal cavities ; mesosternum elevated and produced into a lanciform point between the anterior coxe. 
Metasternum moderate, widely distant from the sides of the body; episterna very broad, not extending to 
the coxe ; epimera very large, broadly inflected beyond the episterna. Venter composed of six segments— 
1, 5, 6 very long, 3, 4, 5 short. Legs generally long and slender ; tarsi 5-jointed—1 very long, 2, 3, 4 
shorter, subequal, the anterior pair sometimes dilated. Coww: anterior prominent and contingent ; inter- 
mediate rather widely distant ; posterior rather widely distant. 
In one of my dissections the labium has been separated from the mentum. This 
preparation clearly exhibits the attachment of the labium to the base of the mentum 
on its inner side, and also the attachment of the lingua to the inner side of the labium. 
Forty-six species of this widely distributed genus have been described ; two only of 
these are from Mexico or Central America, whence I now add eleven others. 
Epitome of the Species. 
Elytra variegated. 
L. c. 250 mm. Ovate, rather deeply punctured ; red, with the elytra more or 
less broadly fasciated with black; legs and antennee long, red . . . . . balteatum. 
L. c. 2°25 mm. Ovate, broad, closely punctured; elytra with a suffused crimson 
spot on the disc ; abdomen bright yellow; legs and antenne yellow . . . letum. 
Elytra pale. 
L.c. 1:75 mm. Ovate, moderately punctured ; flavescent, with a lunate mark on 
each elytron ; legs and antenne rufescent . . lunatum. 
L.c. 1:25 mm. Broadly ovate, moderately punctured ; flavescent, with the dise 
of the elytra dusky ; legs and antenne very long, yellow. . . . . . nebulosum. 
L.c. 1:75 mm. Ovate, rather broad, testaceous, elytra strongly punctured ; legs 
and antenne testaceous. . . . . . . «+ - lutetpes. 
Elytra black or castaneous. 
L. c. 350mm. Elongate ovate, deep black, closely punctured ; thorax much 
thoracicum. 
rounded in front; legs black; antennz piceous. . . . 
L. c. 2°75 mm. Broadly ovate, pitchy-castaneous, minutely punctured ; legs and 
antennee bright rufous ~ guatemalense. 
L.c. 2°25 mm. Broadly ovate, deep black, closely punctured ; legs and antennze 
. . . bilimeki. 
Z* 2 
long, rufescent . 
