TEN NEW FIREFLIES FROM JAMAICA—BUCK 69 
Male.—Pronotum about 1.8 by 2.3 mm.; variable in contour, the 
lateral margins sometimes subparallel in basal third, sometimes 
farthest apart at basal third; front margin usually approximately 
semicircular, but sometimes produced, slightly upturned and sub- 
angulate; basal margin straight except at hind angles, which are 
produced slightly backward (pl. 3, fig. 21); disc with central dark 
brown or black area of irregular shape and variable extent, usually 
one-half to one-fourth the pronotal width in diameter, and sometimes 
flanked also by more or less distinct longitudinal dark brown stripes 
of about the length of the disc and about one-fourth pronotal width 
in from the lateral margins of the pronotum; central part of disc with 
broad very shallow transverse depression; disc surrounded on sides 
and in front by broad, flat, yellow-brown border. Scutellum dark 
brown anteriorly, usually lighter toward its apex. Mesonotal plates 
dark brown or black. Elytron about 6.5 by 1.5 mm., dark brown, 
with lateral whitish border up to one-third elytral width and much 
narrower pale sutural border, the two vaguely confluent at apex; very 
slightly broader at basal third, main taper begins at apical fourth and 
in lateral margin only; vestiture fine, light, and inconspicuous. Head 
width about 1.45 mm. Eye length 0.9mm. Frons width 0.48 mm., 
black, slightly concave; interocular margins slightly divergent. 
Maxillary palpi dark brown, labial palpi dark brown, pale at apices. 
Antennae 4.0 mm., dark brown, segments 6 to 8 each about three and 
one-half times aslong as wide. Ventralsurface of thorax, tibiae, and tarsi 
dark brown, rest of legs lighter; tibiae much flattened; claws light brown; 
tibial spurs light brown, small and so inconspicuous that their distribu- 
tion cannot be specified with assurance, although where clear itisfront 1, 
middle 2, hind 1. Tergites 6 to 8 white, rest infuscate in variable 
degree; pygidium in shape of broad abruptly truncated triangle, the 
hind margin being nearly straight (occasionally feebly arcuate) and 
about two-thirds as wide as the basal margin. Sternites 2 to 4 dark 
brown, 5 usually so at least anteriorly, 6 to 9 white; 6 slightly, 7 and 
8 markedly notched in centers of hind margins (pl. 3, fig. 32) and 
slightly narrower than corresponding sternites. Aedeagus (pl. 2, fig. 15, 
a-c) similar to that of P. chapini Barber; almost wholly white; 
lateral lobes white, laterally compressed, outer margins subparallel to 
apical third where they converge abruptly and narrow dorsoventrally 
to sharp points directed posteroventrally; inner margins subparallel 
and well separated in basal third, then divergent to apical third, 
thence convergent; median lobe moderately broad, dorsoventrally 
- flattened, its dorsal sclerotized surface white basally, black apically, 
curving dorsally from deeply ventral level to top surfaces of lateral 
lobes, membranous portion projects dorsally therefrom to pointed 
apex; dorsal sclerotized surface of median lobe is incised at apex by 
