430 SUPPLEMENT. 
as in Guatemalan specimens of A. spectabilis. In the Panama localities individuals occur 
in which the black belts are covered with bluish-grey pile ; these approach A. bifasciata, 
but differ from it in the form of the belts and other features. A. bifasciata remains a 
tolerably distinct local form, peculiar to Chontales. 
Amphionycha fraudatrix (p. 218). 
To the locality given, add :—Costa Rica (Van Patten). 
11. Amphionycha sericipennis, (Tab. XXV. fig. 16.) 
Sat breviter oblongo-subcylindrica, supra deplanata, melleo-flava ; elytris dimidio posteriori, metathorace, ventre, 
tibiis apice et tarsis, nigris ; elytris supra (apice excepto), metasterno, et ventre, pube sericeo cinereo-flavo 
dense vestitis, colorem nigrum occultante ; antennis tenuibus, laxe ciliatis, nigris, articulo 4° fere toto 5°que 
basi testaceis ; capite magno, inter antennas lato et plano, vertice convexo ; thorace quam caput cum oculis 
haud angustiori, breviter cylindrico, basi angustato, auro-sericeo ; elytris apice sinuato-truncatis utrinque 
acute bidentatis, epipleuris bicarinatis margineque incrassato. 
Long. 5—53 lin. 
Hab. Panama, Bugaba (Champion). 
The black ground-colour of the apical half of the elytra, as well as of the meta- 
sternum and abdomen, is just visible through the dense clothing of laid blonde pubes- 
cence ; a narrow apical fascia and the apical half of the epipleura remain black with 
black pubescence. 
12, Amphionycha chionides. (Tab. XXV. fig. 17.) 
Phebe luteole similis, sed fronte haud tuberculata. Parva, angusta, clare rufescenti-fulva ; antennis (apice nigro 
excepto) melleo-flavis, pedibus testaceo-albis, capite (occipite excepto), thorace vittis latis duabus, elytris 
basi (usque medium) utrinque vittis angustis duabus (una suturali), macula ovata versus apicem, apiceque 
intus, cretaceo-albis ; capite inter antennas lato sed paullo depresso ; thorace quam caput angustiori, cylin- 
drico (lateribus medio rotundatis), conspicue punctato ; elytris pube fulvo-aurea vestitis, striato-punctatis, 
apice singulatim rotundatis, epipleuris unicarinatis et pluripunctato-striatis ; sterno vitta utrinque laterali 
cretaceo-alba. 
Long. 33 lin. 
Hab. Panama, Bugaba (Champion). 
This charming little species may possibly belong to the genus Phebe. The unique 
example, however, appears to be a male, and has no trace of the frontal tubercles or 
processes which alone distinguish Phebe from Amphionycha. 
13, Amphionycha bicarinata. (Tab. XXV. fig. 18.) 
A, pluricostate proxime affinis. Elongata, lateribus parallelis, epipleuris altis ; supra verticem, thorace vitta lata 
dorsali scutelloque, nigris, capite thoraceque lateribus ochraceis, elytris fulvescenti-rufis ; corpore subtus 
pedibusque nigris nitidis, pro- et mesosterno medio femoribusque basi flavo-testaceis ; capite inter antennas 
angusto, concavo; thorace antice gradatim angustato ; elytris apice obtusissime rotundatis, subtilissime et 
densissime fulvo-rufo tomentosis, carinis utrinque validis nitidis parallelis duabus; antennis (¢ ) quam 
corpus vix longioribus, subtus sparsim breviter ciliatis. 
Long. 54 lin. 
