26 Rev. H. S. Gorham's materials for a 



Photinus autumnalis, Melsli, Proc. Ac. Phil. ii. p. 303. 



The smaller, narrower, and blacker form of coruscus, 

 L., from which it is not, I believe, specifically distinct. 



Pennsylvania, U. S. Most collections, 



[I have not seen a type of californica. Mots., but 

 judging from the description, it is a large form of 

 corusca, L. Crotch gives it as a sub-species oi facula, 

 Lee. Pyropyga californica, Mots. 1. c. p. 5, is quite a 

 different species, 2^ lines long, thorax with two red marks, 

 and will want a new name.] 



Pliotijius nigricans, Say, Journ. Ac. Phil. iii. 179. 



Massachusetts, U. S. 



Photinus decipiens, Harris, Trans, Hartf. 1836, p. 74. 



Texas, U. S, 



Very near nigricans, Say. 



Photinus minutus, Lee. Syn. p. 333. 

 United States (New Orleans). 



Photinus ardens, Lee. 1. c. p. 334. 

 Michigan, U. S. 



Photinus lineellus, Lee. 1. c. p. 335. 

 Texas, U. S. 



Photinus marginellus, Lee. 1. c. p. 335. 

 Missouri, U. S. Very near lirieellus. New York, Mus. 

 Brus. 



VI.-NEW SPECIES. 

 Photinus GuatemalcB, n. sp. 



Niger, sat nitidus, thorace disco nigro nitido, lateribus 

 rubricatis, limbo omni tenuiter nigro, scutellum Ifeve, 

 abdominis segmento sexto flavo, genitali nigro. ^ , 2 . 



Long. lin. 5^ — 6^. 



Elongate, rather shining, black, thorax (at least in the 

 male) a little longer than wide, posterior angles right, disc 

 smooth and shining, with two impressions at the base, and 

 very obsoletely canaliculate, the black portion transversely 

 widened near the base, the entire limb very narrowly 

 black, the portion between this and the disc, as well as the 



