PYRECTOMENA.—CRATOMORPHUS. 51 
3. Pyrectomena, striatella. (Tab. III. fig. 13, ¢.) 
Pyrectomena striatella, Gorham, Trans. Ent. Soc. 1880, p 33. 
Hab. GuateMata, Duefias, Zapote (Champion, Salvin). 
Var.—Panzos, province of Vera Paz (Champion). 
The variety is rather more shining and has concolorous coste to the elytra. A 
specimen from Duefias is figured. 
CRATOMORPHUS. 
Cratomorphus, Motschulsky, Etud. Ent. i. p. 35 (1852). 
Photinus, Castelnau (pars). 
Cratomorphus includes some of the largest species of the Lampyride, rivalling in size 
Lamprocera latreillei; and at the same time they are highly luminous insects. The 
males have large globular eyes; and in both sexes the antenne are simple. The thorax 
has usually two transparent portions near the front margin above the eyes. In this 
genus the apical segments of the abdomen exhibit peculiarities of form varying in each 
species. 
The distribution of Cratomorphus is very much the same as that of Photinus; but it 
has not occurred so far north, no species having yet been found above the tropic of 
Cancer. On the other hand, it occurs as far south as Buenos Ayres; so that South 
America must be regarded as the home of these insects. 
The species are not numerous, nor do they appear to occur in such numbers where 
they are found ; yet, owing to their large size, they must add considerably to the brilliancy 
of the night scene of a tropical forest. 
At present I have only seen three species, represented by seven specimens from the 
northern continent. 
1. Cratomorphus fuscipennis. 
Cratomorphus fuscipennis, Mots. Etud. Ent. ii. p. 33‘; Gorh. Trans. Ent. Soc. 1880, p. 34. 
Cratomorphus latus, Kirsch, Berl. Zeit. 1865, p. 72. 
Cratomorphus albomarginatus, Guérin coll. (ined.).?, 
Late ovatus; testaceus, antennis nigris, articulo primo flavo, fusco variegato, secundo brevi flavo, tibiis tarsisque 
infuscatis. Long. 27-29 millim., lat. 14-15 millim. ¢.° 
Mas abdominis segmentis quinto et sexto marginibus medio sinuatis, septimo late emarginato, pygidio 
truncato. 
Hab. Nicaragua, Chontales (Bel¢).—Braziu!. 
This fine insect is the largest species of ‘“ glow-worm” yet found in Central America ; 
and four males sent by the late Mr. Belt are all that have yet occurred. 
I have little doubt of its identity with the C. /atus of Kirsch; the reference to 
Motschulsky’s species is more doubtful, his description consisting merely of a state- 
ment that his insect resembled C. fabricii (giganteus, Drury), but was without the 
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