MALACODERMATA. 267 
25 (s). Photinus championi. 
Oblongus, sat latus, nigro-fuscus, vix nitidus ; elytrorum limbo toto (basi excepta) tenuissime flavo; prothorace 
lineola brevi utrinque sanguinea (maris), vel concolore (femine). Long. 18 (¢), 162 (@) millim. 
Mas. Segmentis quinto et sexto flavis eburatis. 
Femina. Segmento quinto flavo, sexto margine apicali bisinuato, medio exciso. 
Var. Prothorace pallido, disco nigro-fusco utrinque lineola sanguineo, margine reflexo sordide infuscato. 9. 
Hab. GuatemMaLa, Volcan de Agua 8500 to 10,000 feet, Quezaltenango 7800 feet 
(Champion). 
This fine species of Photinus is one easily recognized by its large size and general 
dark colour, the thorax being relieved by a vivid blood-red line on each side of the 
dark disc. ‘There are only two specimens from each of the localities. Those from the 
Volcan de Agua are darker than those from Quezaltenango, and the female specimen 
of the former is concolorous above, if we except the extremely fine but distinct yellow 
margin and suture. The apical segments are normal—the genital one in the male 
being quite black, the one preceding it, or the seventh, being black, only pale at its 
sides, the fifth and sixth totally yellow and shining. In the female it is the fifth alone 
that is luminous, the apical and subapical ones dark and notched in the middle. I 
have pleasure in dedicating this species to its captor, Mr. Champion. 
25 (c). Photinus signaticornis. 
Breviter ovatus, nigro-piceus, parum nitidus ; prothorace ad latera albescente, disco late miniato, nigro-vittato ; 
antennis brevibus compressis, articulis duobus vel tribus apicalibus albis. Long. 74 millim. 9. 
Mas. Latet. 
Femina. Segmento ventrali apicali flavo-albescente. 
Hab, Panama, Bugaba (Champion). 
The white apical joints of the antenne separate this species of Photinus from any 
except P. armatus and P. edus, from either of which it is distinguished at once by its 
short oval form, in addition to other characters. The elytra are entirely black, with a 
faint purplish tinge. The antenne have all their joints short, the intermediate ones 
about half as long again as wide, while the three white apical ones in the female are 
not longer than wide. One example has rather longer antennz, with two joints only 
white, and is perhaps the male; the abdomen, however, in this one is too much shrunk 
to be well observed. The form is very nearly that of P. latiusculus and of P. montanus. 
25 (p). Photinus purulanus. (Tab. XII. fig. 1.) 
Oblongus, subparallelus, niger, depressiusculus; prothorace maculis duabus rubricatis. Long. 5-6 millim. 
dQ. 
Mas. Oculis globosis prominulis, segmento subapicali ventrali macula parva utrinque pallida. 
Hab. Guatemata, Purula 4000 to 5000 feet (Champion). 
This little species is not very like any other known to me as described. The thorax 
2M 2 
