MALACODERMATA. O68 
This species will, I think, be recognized when the combined characters of rather long 
antenne with the apical three or four, with sometimes half of the preceding joint, 
nearly wholly rufous, thorax with a distinct but short channel, and abdomen with 
three or four segments white (but not ivory-white or shining) are noticed. The elytra 
are blackish and dull and are sometimes narrowly margined with pale ; this is especially 
noticeable in the Bugaba specimens. The legs are black, the front ones and the middle 
pair being a little paler at their bases. Mr. Champion observed this species and 
several others to fly in the early morning in the forest. A very common species in the 
locality where it was found; a large series of more than one hundred examples was 
collected. 
19 (c). Photinus subfuscus. 
Oblongo-elongatus, subparallelus, sat latus, fuscus ; prothorace pedibusque pallidis, his, tibiis tarsisque, illo disco 
disperse fuscis; capite nigro. Long. 15 millim. ¢ 9. 
Mas. Segmentis quarto, quinto et sexto pallide flavis eburneis, septimo et genitali fere obtectis pallidis ; segmento 
sexto margine in medio angulariter exciso, septimo perbrevi in medio acute producto. 
Femina. Segmentis quatuor ventralibus apicalibus albis. 
Hab. Panama, Pefia Blanca, San Feliz, Tolé (Champion). 
This Photinus is allied to many South-American species, but has no near ally among 
the species yet recorded from Central America. It may be recognized perhaps by 
being compared to the European Lampyris reichei or the North-African L. zenkeri, 
which it closely resembles in size, form, and colour. The prothorax is equally wide 
and long, but evenly rounded in front and sometimes narrowed from the base, which 
makes it of the form often called hat-shaped; its surface is even, rather widely rugose 
round the margins, but little reflexed ; the centre of the disc has a rude rather deep 
channel, on each side of which is a tumid swelling darker in colour than the rest of 
the disc. The elytra are of a pale fuscous tint evenly distributed. The female 
specimen described has the margin of one elytron abnormally expanded below the 
middle and asymmetrically to the other one, in which it is very slightly so. The 
specimen from Pefia Blanca is a female; this one has the elytra normally formed, the 
abdomen very wide, the sides of the two dorsal penultimate segments, and most of the 
pygidial one, pale. 
22, (a). Photinus armatus. (Tab. XII. figg. 2, a, 4, ¢, 3.) 
Oblongus, subparallelus, nigro-fuscus ; prothorace albido, disco late nigro-vittato, utrinque lete miniato ; antennis 
articulis duobus apicalibus albis; pedibus basi et geniculis pallidis. Long. 7 millim. ¢ 9. 
Mas. Segmento septimo apice acute producto, octavo (genitali) convexo; genitalibus lanceolis quatuor armatis, 
duobus superioribus uncinatis, inferioribus curvatis acutis. 
Femina. Segmento ventrali apicali apice rotundo simplici, utrinque maculis duobus albescentibus. 
Hab. Panama, Bugaba (3 ? ), Volcan de Chiriqui (Champion). 
This species is remarkable for the genital armature of the male. I have not observed 
BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 2, October 1884. 2M 
