820 



FAMILY XI, 



-LA.AIPYUID.K. 



1558 (4S20). Fyropyga decipikns Harris, Traus. Hartford Soc, 1S3G, 74. 



Elon.^ate-oval. Black or rusty black; thorax with a wide pale reddish- 

 yellow margin. Anteiiiiie less slender than in the other two species, the 

 joints one-half longer than wide. Elytra each with Iwo sul)i)bsolete costte 

 and with surface more coarsely granulate than in iiinriciiii-s. Length 5~ 

 7 mm. 



Xoi'lhci'ii Jialf of State; frc^tiiiciit. -Iniic 17-.liily 24. 



X. PvKACTOiNfENA TjOc 1851. (Gi*.. "to set on fire.") 



Antennae iiarroAV. not serrate; the thora.x sul)carinate with sides 

 broadly reflexed. Lioht organs are well developed in hoth sexes; 

 those of the male being located on the fiftli and sixth ventral seg- 

 ments and marked each side alioni half wa.v between the middle and 

 side by a large ronnd stigma-like |)()re or spot; those of female are 

 at the sides of the segments, which ar-' dnsky or piceons at middle, 

 and are also accompanied by distinct i^ores. The males have the 

 last dorsal segment (Miiarginate. seviMith v(Mitral trnncate, and the 

 eighth small. Tliree of the four laiown species liave been taken 

 in the State. 



KEY TO INDIANA SPECIES OF PYRACTOMENA. 



a. Elytra with wide side margins. 

 aa. Elytra with narrow side margins. 

 1). Antenn;e shorter than thorax. 

 hh. Antennjp longer than thorax. 



1559. ANGULATA. 



1560. BOREALIS. 



1561. LUCIFERA. 



^7)7)*^ (4S2r>). I'-. i!A( lOMKXA ANGTLAiA Say. .Tonrn. I'liil. .\cad. X:it. Sci.. A'. 



1825, 162; ibid. II, 273. 

 Elimgate. di'pressed. Blackish-brown; th :r;ix with a 

 d.irk median space and dusky lateral margins, between 

 wliich the area is yellow tinged with reddish on basal half; 

 elytra with sntnre and narrow side margins pale. Thorax 

 witli frnnt margin obtusely angulate. Elytra finely granu- 

 lale. not pnnclnred. each with two or tliree well marked 

 costa'. A'entral segments of female dull yellow spotted witli 

 dusky. Length S-15 mm. (Fig. 317.) 



Thfoiiglnnit ilie Stale; ri'efiiKMil. May lO-hily S. One of our 

 mosl comnioii (ireMies. 



ir.dO (1S2I). l'vi;A( roMi .\.\ i!oia;.\iis K.-iiid.. I'.osl. .biui-n. X.il. Hist.. 11, 



is:!s. ic. 

 Ifesenililes oiHjuUthi cUisely in foi-ni :in(l geiiei-;il ;ippe;ii-:ni<-e. The mar- 

 gins of both thorax and clyti-a are nnrrowcr and those of the former are 

 yellow instead of dusky as in (nigiihihi. The cenlr.il bhick sjiot is usually 

 smaller and the red one each side larger. Anteimie stout and short(M' than 

 tliornx. Abdomen of f(>male in great part dark. Length 10-15 mm. 



