Till'; J'1K1'1>'L1KS OR ].1G1I'I'\IN<; I'.ICS. 809 



search <»t" their prc.w All .-ire I'di- tin' iikkI pm-t cjii-nivofdus in 

 diet. ('spccijiilN- ill lllf l;il-\;il si;ii;f. fccdiiii: iiiuslly ii|i(iii sniiill 

 worms. l;ir\n' d" dtlii'i- insccls. .ind snails, aiui an- 1 liri'croi'c lo hi' 

 eonsidei'cd aiiiciiL;- (Hii- iiioi't' hcii'Micial hccllcs. Thr hii-\:i' arc cloii- 

 ,i»'ato(l. f1a1lciic(l. usinlly a little t apei'ini:' toward each i']\*\. nl' a 

 toiiji'h (»!■ li'atlici-y tcxiurc and (il'tcii chitlicd with slnii't hairs. 'rhc\' 

 are furnished with sliai'p. slcndei- projecl in^- jaws with whi(h thc\' 

 seize tlieii- |>i'ey. 'I'liev occnr nsnally heii»'at h rnhhish (in t he uidnnd. 

 or uiidci' the hack el' loizs and dead lice-;, where I hey lie in wait I'or 

 small w()(td-ea,t iiiii' hir\ a'. 



'I'hc i)rinci|)al iiteralni'c trt^atinu' of the North .\iii"i-ican species 

 (if the family is as follows: 



LcContc. — "Synoiisis of the l>an!p\rides of 'I'cniperate Xoi'th 

 America." 'ui I'roc. Phil Acad Sei . \'. 1^51, 881-347. 



LeContc. — "S>ii()()sis of the Lampxiida' of the V. S.." in- Trans. 

 Amer. Entom. Soc, IX, 1881, 15-72. 



X'early 1.500 species of Lanipyi"i(be are known, about 280 of 

 which, distributed anion" -12 o'ciiera. ai'e from the I'liited Stat(>s. 

 Of these. GS species, bf^lonying to 25 eenera. have l.een taken in In- 

 diana. For convenience the family is divided into three subfam- 

 ilies, all of which are repres(>nted in the Stat(\ 



KEY TO SUBFAMILIES OF LAMPYRID.K. 



(/. Middle c().\:e separated; elytra for the most part reticulate; ei)i))lcura 

 wanting; abdomen without phesphorescent organs. 



Subfamily I. Ltcin.e. p. 80!). 

 (til. Middle co.\;e contigueus; clyti'a net reticulate; epipleura distinct. 



h. Head nearly or quite covered by the thora.x ; episterna of metathorax 

 sinuate on the inner side ; epipleura usually wide at the base of 

 the elj'tra ; plKisiilim-eseent organs usually present. 



Subfamily II. Lampyri.x.k. p. SIO. 



hh. Head wholly uncovered by the thorax; ei»isterna of metatliorax not 



sinuate on the inner side; epipleura narrow at the base; phos- 



lihorescent organs absent. Subfamily Hi. 'rii.KiMioRrx.E. \^. 825. 



Subfamily 1, LYCINAE. 



The meiiihei's of this siilif;imily are dinriial ami oenir nsnally on 

 the leaves and llowers of [tlants. where they s'ck insect, food. ^Fhey 

 have the epipleura r 'dnced to a nan'ow thickened mariiinal line, 

 and the middle cox-e rather widel\ separated by the mescsternum. 

 The elytra a)'e nsnall\- costate and coarsely i-et icnlate, with fine 

 (devated lines formiici a coarse netwoi-k. The head is sometimes 

 ])rolono-od in fi-otit of the eyes into a loni;'. narrow beak. To the 



