156 PROCEEDINGS OF THE NATIONAL MUSEUM 



Scutellum and mesonotal plates brown, the latter ivory in one cT 

 specimen. 



Elytra 0.8 of total length, subparallel, distinctly bicostate, deflexed 

 over abdominal segments, especially apically. Very narrow explanate 

 margins. Terminal abdominal segments not exposed. Brown. 



Head with frons brown, bent sharply backwards and transversely 

 impressed above antennal sockets. Width across eyes 1.15 mm., be- 

 tween eyes 0.65 mm. Eyes rather small. Maxillary palpi dark 

 brown, of the usual conoidal outline. Labial palpi dark brown, 

 securiform. Clypeus brown, short, margin almost straight. Man- 

 dibles small, projecting forward. 



Antennae nearly black, compressed but not markedly serrate. 

 First article shorter than 3d. 5.1 mm. long. 



Prosternum pinkish yellow. Mesosterna and metasterna brown. 



Tergites and abdominal segments brown, with no evidence 

 luminous organs. 



Legs brown, with tibial spurs not distinguishable. 



This species, usually having a yellow pronotum, was not represent 

 in the Pefia shipment. 



Literature Cited 



Barber, Herbert S. 



1951. North American fireflies of the genus Photuris, Smithsonian Misc. 

 Coll., vol. 117, No. 1, p. 16. 

 Blanchard, E. 



1853. In Hombron and Jacquinot, Voyage au P61e Sud et dans l'Oceanie 

 sur les courvettes V Astrolabe et la ZeUe, execute . . . pendant . . . 

 1837-40, Zoologie, vol. 4, p. 70, pi. 5, fig. 7. 

 Fairmaire, Leon, and Germain, P. 



1862. Cole6pteres Chilensia, vol. 2. 

 Ferris, Gordon Floyd. 



1928. The principles of systematic entomology. Stanford University Pub- 

 lications, University Series, Biological Science, vol. 5(3), 169 pp. 

 Gemminger, M., and von Harold, E. 



1869. Catalogus coleopterorum hucusque descriptorum synonymicus et 

 systematicus, vol. 6, pp. 1609-1800. 

 Gorham, H. S. 



1883. Revision of the genera and species of malacoderm Coleoptera of the 

 Japanese fauna. Trans. Ent. Soc. London, pp. 393-411. 

 le Guillou, E. J. F. 



1844. Description de vingt insectes coldopteres recueillis pendant le voyage 

 autour du monde de V Astrolabe et la Zelie. Revue Zoologique, 

 vol. 7, pp. 220-225. 

 McDermott, F. A. 



1956. Gigantic glowworms in South America. Coleopterists' Bull., vol. 

 10, No. 2, pp. 17-19. 



