64 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 97 
Mossmans Peak (Portland): Collected for 2 miles along the level forest trail 
leading from Portland Gap west around the north shoulder of the peak, at 
5,600 feet. - 
New Haven Gap (Portland—St. Andrew): Between Bellvue and Sir Johns Peaks. 
Altitude 5,500 feet. 
Port Antonio (Portland): Port on north coast near east end of island. 
Sir Johns Peak (St. Andrew): Collected trail leading around south shoulder of 
peak from saddle (5,750 feet) between Sir Johns and High Peaks through 
tree fern forest (5,900 feet) and down toward New Haven Gap. 
Stony Hill (St. Andrew): 8 airline miles due north of Kingston. Altitude 1,150 
feet. 
Trafalgar Gap Trail (Portland): Leads north from Morces Gap (4,950 feet), 
descending gradually to 4,350 feet in about 2 miles. 
DESCRIPTIONS OF NEW SPECIES AND GENERA 
Genus PHOTINUS Motschulsky 
A redescription of the genus Photinus would be out of place here, 
but a few words about certain characteristics common to all the species 
here described and, in most cases, different from those of the other 
genera considered, will save duplication in the individual descriptions. 
In the males of the known Jamaican species of the genus (except 
Photinus lucernula Barber) the photogenic organs of the adult occupy 
all the ventral surfaces of abdominal segments 6 and 7 (pl. 3, fig. 
32), whereas in the female (pl. 3, fig. 33) there is only one organ, 
occupying part of sternite 6. The photogenic organ, which is usually 
white or, in life, very pale yellow and is surrounded by a very narrow 
chalky border formed by the edge of the “reflector’’ layer of the organ, 
should not be confused with white sternites due merely to absence of 
pigmentation. In most species of Photinus, in contrast to Diphotus, 
sternites 6, 7, and 8 have a rounded notch, sometimes quite deep, in 
the middle of the posterior margins, giving a more or less bilobed 
effect (pl. 3, fig. 32). As in Diphotus the tarsal claws are simple (pl. 3, 
fig. 29). The tibial spur pattern is usually 0-1-1 or 1-2-2. Aedeagal 
characters have already been mentioned. 
PHOTINUS LEWISI, new species 
PuaTE 1, Ficure 1; Puats 2, Figure 11 
Field characters Dimensions varying from 6.5 by 2.4 to 8.1 by 3.0 
mm. (Average dimensions, with standard errors, 7.40.5 mm. by 
2.7+0.2 mm.) Pronotum and end of abdomen nearly white, rest of 
body dark brown to black. 
Male.—Pronotum averaging 1.5 mm. long by 2.2 mm. wide (though 
length-width ratio varies from 2:3 to nearly 1: 1); shape and propor- 
tions variable; sometimes widest before hind angles, front margin 
usually semicircular, hind angles usually produced backward slightly, 
basal margin straight in median three-fifths; color entirely white or 
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