399, SUPPLEMENT. 
Mas. Antennis acute serratis, quam elytra longioribus. 
Femina. Antennis quam elytra brevioribus, minus acute serratis. 
Hab. Panama, Taboga Island (Champion). 
Head black, shining, yellow in front of the eyes; front rather produced ; palpi 
pitchy. Antenne of the male of the length of the elytra; black, the first three joints 
yellowish, the joints from the fourth to the tenth triangular, acutely produced on the 
inner side, the apical one elongate and faintly cultriform; of the female they are one 
third less in length, all the joints, especially the apical ones, shorter. Thorax broader 
than long, red, with a broad black vitta not touching the base; in the male the front 
is black also, in the female there is only a spot on each front angle. Elytra clothed 
with a shining grey pubescence, and with a long but very fine pile (which extends over 
the whole upper surface); a deep sutural stria, and the margin, subreflexed. Four 
segments of the abdomen are left exposed in the female, in which sex the three apical 
ones are black, in the male they are all fuscous above. Legs testaceous, more infuscate 
in the female. One specimen only of each sex. 
DROMANTHUS (p. 121). 
1 (a). Dromanthus laticornis. 
Niger; prothorace rufo, nigro vittato, nitido; ore abdominisque lateribus anguste rufis, coxis et trochanteribus 
rufo-piceis; elytris opacis, nigro-violaceis, parce piloseilis ; antennis latis, serratis. Long. 44 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Allied to D. decipiens, but with the opaque elytra of D. opacus, from both of which 
the wide flat antennee will distinguish it. It moreover differs from D. decipiens in the 
following respects :—the antenne are black at the base, the thorax is wider and with a 
narrower black vitta, the elytra are less hairy and free from punctuation and have the 
suture and the margins neatly raised. The epistoma, mandibles, and maxille are 
reddish yellow, but the labrum and the palpi are black. 
This insect presents a singular combination of the general appearance of the other. 
Malacoderm groups: the smooth elytra of the Lampyride, the antenne of the Lycide, 
and the thorax of the Telephoride ; the four-jointed tarsi should, however, enable it to 
be recognized. It appears rare, three specimens being all I have seen. 
1(s). Dromanthus nitidicollis. (Tab. XIII. fig. 6.) 
Niger; prothorace rufo, nigro vittato, nitido; elytris opacis, nigro-violaceis, parce pilosellis; antennis latis, 
serratis, articulo apicali albido. Long. 43 millim. 
Hab. Panama, Bugaba (Champion). 
Two examples. Resembles D. laticornis so nearly that it may prove to be a form of 
that species, but the white apical joint of the antenne is a character usually indica- 
