revision of the Lampyridce. 91 



3Ias. — Pygidio apice trimcato, subsinuato, pallido, seg- 

 mentis ventralibus duobus penultimis macula flavii trans- 

 versa, apicali toto pallido. 



Head very concave between the eyes, which are large 

 and contiguous in front, as usual in this genus ; thorax 

 with the margin reflexed, and elevated in front, where 

 there are two diaphanous spaces. Antennae of the length 

 of the thorax, filiform. Body, legs, and wings fuscous 

 black. 



Bengal ; Mus. Brus. [Gucrin]. 



Diaphanes Javanus, n. sp. 



Niger, thorace, femoribus et tribus segmentis ventra- 

 libus testaceis, his nitidis, marginibus albis ; elytris fuscis, 

 suturil et marginibus lateralibus conjunctim albido-flavis, 

 antennis brunneis. 



Long. lin. 5 ^. 



Allied, no doubt, to D. adustus, Mots., but does not 

 agree in colour with his description. The eyes are very 

 large ; the thorax has the usual diaphanous spots, and with 

 the scutellum, coxte, femora, inner side of tibiae, pleura of 

 metasternum, and margins of elytra (excepting at their 

 base), is pale testaceous yellow. 



Java; Mus. Brus. [Guerin]. 



Pykoccelia, genus novum. 



Head received into the prothorax, eyes small, or at 

 most, moderate ; antenmc nearly half the body's length, 

 compressed, joint 2 very short, 3 — 10 strongly serrate, 

 11, small, oval. Thorax as in Diaphanes, front margin 

 strongly reflexed, sometimes with sub-diaphanous areolets. 

 The two segments preceding the apical one luminous, the 

 diaphanous spots transverse, occupying most of the plate, 

 and eburate. Legs rather long, femora reaching to the 

 elytral margins. Abdomen with the dorsal segments, with 

 acute hind angles, produced backwards, sublobate. Pygi- 

 dium bisinuate, the middle lobe a little prominent. 



This genus is superficially very like Diaphanes, the 

 antennae are very different ; the thorax does not possess 

 the diaphanous areolets, or in a much less degree. The 

 eyes are comparatively small. 



Lam'pyris hicolor, Fab., appears to me to belong to 

 this genus, which seems composed exclusively of Eastern 

 species. The females are hardly known. 



