260 PHALACRID. 
with iridescent reflections, and with fine series of punctures behind; the scutellum is 
concolorous with them. The head and thorax are piceous, the former becoming yellow 
in front, the latter at the sides. 
4. Litolibrus quadratus, sp.n. (Tab. VII. fig. 25.) 
Hemispheericus, rufo-testaceus, nitidus, antennis pedibusque testaceis ; elytris nigris, limbo maculisque quatuor 
discoidalibus, quadratim positis, rufo-testaceis. 
Long. 37 millim. 
Hab. GuatTeMAua, Panzos in Vera Paz (Champion). 
A species of very convex form and almost circular outline, and with highly polished 
surface. The elytra have four yellow spots placed so as to mark the position of a square 
on the discoidal portion ; and bear a well-marked series of fine punctures not extending 
to the base. 
We have received only one specimen. 
5. Litolibrus signatus, sp.n. (Tab. VIII. fig. 3.) 
Hemisphericus, nitidus, testaceus, prothorace elytrisque nigro-signatis. 
Long. 3} millim. 
Hab. Panama, David (Champion). 
I distinguish this insect from LZ. guadratus on account of the black. colour on the 
elytra being less extensive, while the thorax is marked with black on the middle. 
We have received only two examples; in one of them the thoracic dark mark consists 
of three separated pieces, in the other there is a single black mark enclosing a yellow 
space. The dark mark on the elytra consists of a black discoidal space showing four 
large yellow spots. 
6. Litolibrus varians, sp. n. 
Rotundato-ovalis, sat convexus, testaceus; elytris colore variabilibus, sepius nigris, medio rufo-bimaculatis, 
margine apicali testaceo ; antennarum clava minus laxa, haud lata. 
Long. 23 millim. 
Hiab. GuatEMALA, Las Mercedes, Zapote, Mirandilla, Guatemala city, San Gerénimo, 
Tamahu, Chacoj, Chiacam, Cahabon, San Juan in Vera Paz (Champion); Panama, 
Volcan de Chiriqui, Caldera 1200 feet, San Feliz (Champion). 
This insect is considerably smaller than LZ. quadratus and L. rufipennis, and is not 
so convex ; it has a more slender club to the antenna, and the basal portion of the hind 
tarsus is more curved. ‘The sutural stria is distinct for about two thirds of the elytral 
length, and the serial punctures on the posterior part of the wing-cases are very fine. 
The elytra are certainly variable in colour, and doubtless this will be the case 
