336 [December, 



fJeorgia, rare ; this sppcies is much narrower than any of the preceding, and 

 the sides of the thorax are siibparallel towards the base. Fennale unknown. 



10. P. V i t t i g e r a , fusco-picea, thorace breviore, semicircular! pallido, 

 basi subennarginato, angulis posticis leviter productis nnarginibus late nninus 

 subito reflexis, apiceque punctatis, disco roseo, subcanaliculato, vitta lata nigra 

 ornato, elytris subtiliter granulatis, nnargine suturaque pallidis. Long. -48. 



Georgia, rare. Resembles P. consanguinea, but the thorax is shorter and the 

 elytra less distinctly granulated. 



PyRACTOMENA ^Dej. 



AntennoB ll-articulatae, tenues, subcompressas, articulo ultimo versus apieem 

 sinuato ; palpi maxillares articulo ultimo triangulari apice acuto, tarsi articulo 

 4ti' longe lobato, ungues simplices; abdomen articulis tribus sublus phosphoreis, 

 ultimo superiore apice emarginato. 



The males are distinguished by the last superior abdominal segment being 

 proiliiced beyond the inferior segment, as in the other genera; the anal segment 

 is visible only in the male, and is emarginate. 



* Elytra late marginata. 



1. P. flavocincta, fusco-picea thorace pallido antice subangulato, 

 basi late emarginato, angulis posticis extrorsum productis, lateribus subito late 

 reflexis, margine fusco, disco subcarinato, medio late infuscato, elytris alutaceis, 

 costulatis, margine late depresso, suturaque angusta pallidis. Long. -45. 



Georgia. The angles of the thorax being produced obliquely outwards, dis- 

 tinguish this species from the next. 



2. P. a n g u I a t a. Lampyrls angulata Say. J. Ac. Nat. So. 5, 162 ; 

 Lampyris hicifera Mels. Pr. Ac. Nat. Sc. 2, 304. Middle and Western 

 States. 



** Elytra minus late marginata. 



3. P. angustata, fusco-picea, thorace apice angulato, pallido, basi 

 vix emarginato, angulis posticis non productis, lateribus late subito reflexis, 

 disco subtiliter carinato, utrinque roseo, medio longitudinaliter infuscato, elytris 

 subtiliter granulatis, costulatis, margine angusto reflexo, suturaque tenui pallidis. 

 Long. -42 55. 



Southern States. The thorax is usually longer than wide ; in one specimen 

 (probably distorted) the reverse is the case. 



4. P. linearis, elongata, fusca, thorace pallido apice vix angulato, 

 basi truncato, angulis posticis vix productis, lateribus subito reflexis leviter 

 infuscatis, disco carinato pone apieem late infuscato, elytris distinctius granulatis, 

 costulatis, margine angusto pallidiore. Long. -ST. 



Georgia; two specimens. 



5. P. b o r e a 1 i s , fusca, thorace pallido, apice angulato, basi late 

 emaiginato, angulis posticis leviter productis, lateribus late reflexis, infuscatis, 

 disco subcarinato, utrinque roseo, medio longitudinaliter infuscato, elytris 



