revision of the Lampyridce. 31 



Femina abdominis segmento quinto macula parva flava. 



Head, antennse, legs, breast and abdomen, with the 

 exception of a yellow spot on the fifth segment, fuscous- 

 black. Thorax nearly semicircular, sides straight at the 

 hind angles, which are acute, the base being, as usual, 

 reflexed before meeting the sides ; disc not channelled, 

 with a broad black patch on the base, narrowing suddenly 

 above the middle and not reaching the front ; carmine 

 where the black patch narrows, and the lateral margins 

 widely white. Elytra evenly margined from the base to 

 the apex with white, which has a greenish tinge in the 

 single specimen I have seen. 



llio Susio, Costa Kica ; coll. Godman and Salvin. 



Photinus perelegans, n. sp. 



Elongatus, fuscus, thorace longiori, angulis posticis fere 

 rectis, albido, disco late nigro, medio canaliculato utrinque 

 miniato, elytrorum, margine laterali et sutura conjunctim 

 tenuiter albidis. $,'i. 



Long. lin. 7. 



Mas. — Oculis majoribus, abdominis segmentis quinto 

 et sexto Itete flavis, utrinque puncto impressis, septimo 

 perbrevi, apicali parvo ovali. 



Fern. — Abdominis segmento quinto ventrali albo flaves- 

 cente, basi fusco notato ; sexto fuscescente, leviter exciso ; 

 septimo ti'iangulari, apice exciso. 



Head black, antennge, palpi, legs and body beneath 

 entirely pitchy-fuscous, the extreme base of the thighs 

 alone touched with pale yellow. The thorax elongate, 

 hat-shaped, the front margin a little more prominent and 

 reflexed in the $, disc rather convex, broadly pitchy- 

 black ; this colour, in the male at any rate, not reaching 

 the front, but produced transversely at the base, and 

 showing on each side the rosy colour of the pleiural fold 

 beneath. 



The elytra are leaden-black, very finely punctured, the 

 suture and entire lateral margin narrowly whitish-yellow, 

 the sutviral and discoid nervure a little distinct. Beneath 

 the body is dark, pitchy-black ; and in the male the first 

 four segments of the abdomen of the same colour, but the 

 apical margin of the fourth very narrowly testaceous. 

 The fifth and sixth segments are nearly twice the width of 

 those preceding, clear testaceous yellow-whitish towards 

 their margins on the A'entral side, but fuscous on the dorsal 



