406 | [Feb. 1, 
LeConte.] 
Lucidote. . L. thoracica from Mexico has been considered as 
identical with P. collaris, but difters by more robust form, 
red scutellum, coarser sculpture, and by the reflexed margin 
of the elytra being much broader. The abdomen of both 
sexes is entirely without phosphorescent organs, and the an- 
tennee are more distinctly serrate than in L. luteicollis. 
80. Photinus (Pyractomena) ecostatus, n. sp.—Elongate, head and 
prothorax pale ; the latter a little longer than wide, rounded on the sides, 
narrower in front, and less broadly rounded at apex, sides depressed, 
scarcely punctured, edge dusky for the greater part of the length ; disc 
finely carinate, with a dark stripe, narrow at the apex, broad at the base, 
which is bisinuate ; hind angles rectangular, blunt at tip. Scutellum dark. 
Elytra finely and densely scabrous, narrowly margined, without discoidal 
elevated lines, sutural, lateral and apical margin pale; a narrow discoidal 
vitta extends from near the humerus to behind the middle. Antenn:e dark, 
shorter than the prothorax. Beneath pale, meso- and metathorax, and two 
series of large transverse ventral spots dark ; phosphorescent organs on 5th 
and 6th segments, as two pairs of oval slightly depressed spots of a honey 
yellow color. Legs piceous, trochanters and proximal half of thighs 
pale. Length 14.5 mm. ; .57 inch. 
Key West; one $, Mr. Edw. Burgess. Allied to Ph. 
borealis, but differs by the elytra being more finely scabrous 
and entirely without elevated lines. 
81. Photinus (Pyractosoma) mitidivemtris, n. sp.—Very elon- 
gate, pale. Prothorax with sides broadly flattened, sparsely punctured, 
marked with an elongate lateral dusky spot, disc with a broad dark dorsal 
stripe. Elytra densely scabrous, without elevated lines, strongly margined ; 
sutural, apical and lateral margins pale; a narrow dorsal vitta runs from 
near the humerus to beyond the middle. Meso- and metathorax fuscous ; ab- 
domen pale ; 2d and 3d segments with a quadrate spot each side half way 
between the median line and the side ; 4th segment with a large transverse 
dark spot each side, remaining segments bright yellow, 5th and 6th each 
with a pair of pits connected with the phosphorescent organs, resembling 
large spiracles. Antennæ shorter than the prothorax, dark, base pale. 
Legs dark, trochanters and base of thighs testaceous. Length 14 mm.; .55 
inch. 
Enterprise; one Y specimen. The scutellum is testaceous 
and the prothorax rather narrowly rounded at apex; in 
another specimen from Capron the scutellum is cloudy, and 
the apex of the prothorax is broadly rounded. Nearly allied 
to P. angustata, but in that species the sides of the prothorax 
are not dusky, while the head and the first four ventral seg- 
۱ YT 
1878.] 407 [LeConte. 
ments are entirely dark. Also nearly allied, but different by 
the densely punctulate phosphorescent segments, is the fol- 
lowing species. 
82. Photinus (Pyractosoma) punctiventris, n. sp.—Very elon- 
gate, of the same form, size and color as P. nitidiventris, with the sides of 
the prothorax fuscous ; the 1st-4th segments of abdomen are not spotted, but 
fuscous, a little paler at the edges. The phosphorescent segments are finely 
and densely punctulate. The discoidal elevated lines of the elytra are dis- 
tinct. Length 13 mm. ; .50 inch. 
Texas; three زگ‎ Austin, Mrs. V. O. King; Bosque Co., 
G. W. Belfrage. | 
82. Photinus (Pyractosoma) collustrams, n. sp. — Elongate, 
fuscous. Prothorax yellow, tinged with orange at the middle, a little longer 
than wide, sides parallel behind, regularly rounded into the apex before 
the middle, margins widely reflexed, scabrous; dise sparsely punctulate, 
shining, finely channeled, between the middle and the apex is a transverse 
fuscous spot. Scutellum yellow. Elytra pubescent, coarsely scabrous, 
each with two faint elevated lines ; sutural, apical and lateral margin 
narrowly bordered with yellow, side margin narrow, not reflexed. Beneath 
fusco-piceous, 5th and following ventral segments (f) yellow, Sth and 6th 
phosphorescent, each with a pair of rounded impressions, having a pore at 
the bottom. Antenne fiscous, not longer than the prothorax. Legs fus- 
cous, anterior and middle more or less testaceous. Length 7.2 mm.; .285 
inch. 
Tampa and Enterprise; two c. 
84. Photinus (Pyractosoma) umbratus, n. sp.—Of the same size, 
form, color and sculpture as P. collustrans, but differs by the prothorax 
having an elongate black spot, extending from near the base to the anterior 
scabrous portion, this spot is wider in front than behind ; the elytra are 
more strongly margined at the side. The antenne are longer and more 
slender, extending beyond the base of the prothorax, and the 1st joint is 
pale. Length 7.5 mm.; .30 inch. 
cf 4th and following ventral segments yellow, 4th and 5th phosphores- 
cent, each with a pair o^ small pits with a pore at the bottom; 5th broadly 
emarginate behind, 6th small, emarginate, 7th small, rounded at tip. 
© The black spot of the prothorax extends to the apex ; the ventral seg- 
ments are black, and only the 4th has a transverse oval phosphorescent 
spot of pale yellow at the middle, the 5th segment is not emarginate, the 
6th is flat, prominent and slightly notched at tip. 
Tampa, Baldwin, Capron; May and June. Two much 
smaller females seem to indicate other species, which with 
more material may be properly defined. It seems to me un- 
safe to propose names for them at present. 

