BEETLES OF THE DISTRICT OF COLUMBIA— VLKE. 



53 



ECOLOGICAL NOTES— ( ontiiiucd. 



Opatrmis votiis, very coiiiiiion under 



stones. 

 Bldjisllniis, under stones and chips in 



sandy places. 

 I'rihuliiunfemigineuiiinudconfuswi), under 



hark, introduced. 

 Ly]>h'iaficicola, rare. 

 Dici'dus pnnetahis, very common under 



bark. 

 Echocerus maxillosus and dentiga-, both im- 

 ported. 

 AlphhoJiiva <li(fperi)iiis, coninion, iin- 



poi-ted. 

 Vloma, all in rotten wood. 

 Eidochia picea, under stones and in moss. 

 Aiifedus brunneus, exceedingly common 



under old leaves. 

 Faratenetvs, very common on dry leaves. 

 Prat.Tus fiiscidiis, in rotten wood, rare. 

 Diaperis hydni, in fungi, abundant. 

 Arrhenoplita bicornis and virldipotnis, on 



various fungi. 

 Platydema. The species of tliis genus 



live all under hark infestf>d with fungi; 



ruficoUe, rare. 

 PhiiJctJiuH bi/asci.atus, in fungus. 

 Paloriix ralzeburgi and subdepress~nK, in 



seeds, imported. 

 Hypophlceus, parasiticonScolytids; pdiycr, 



rare. 

 Penlapliyllus pallidus, in fungus. 

 Bolelotherus bifurcus, in hard fungi grow- 

 ing on trees. 

 BoU'tophagm corticola, under old bark. 

 Helops rnicans, americanus, and nrens, at 



the base of trees; venusivs, on dei.d 



branches of oak. 

 Meracuulha contracia, on old trees. 

 StrongyUum tenidcolle and tentituultim, in 



rotten wood. 



i>A(iKm)/K. 



Artlirnmncni niiin 

 Sldtini. like Arlln 



M()N().^LMII)/E 



IlypurJiiignnpiiiicliihih 

 nut logs. 



(uchest- 



MELANDRYID/E. 



Tet.ratomatesse/lald, on rottt'ii twigs; trim- 



corum, rare. 

 Pisenus humeralis, in fungi, not common. 

 Penthe, in fungi growing on logs and 



stumps. 

 Synchroa piuiclata, very common under 



bark. 

 EustropJms and IIoloMvoplm^, in fungi. 

 Orchesia, in hard fungi growing on trees. 

 Ilalloinenua, on fungi. 

 Microscapha davtcornis, common on dead 



twigs. 

 Melandrya, under old l)ark. 

 Carebara longidti, on pine twigs; one 



specimen. 

 SpUotus 4-pusUdo)^ii!<, common on twigs. 

 Enchodes sericea, from a felled old tree; 



one specimen. 

 Mystaxia simulator, under hark. 

 Hypulus litundus, common on moss grow- 

 ing on trees; concolnr, rare; vaudoueri, 



one specimen. 

 Syinphora flavicoUh and nigosa, both 



common everywhere. 

 A})iso.rya glaucula, on dead twigs. 

 Scraptiasericea, very common on blossoms. 

 AUopoda lutea, on flowers. 

 Cnnifa, very common on bushes. 

 Nothutf varians, on Cr(da:gv>i. 

 Mydcrvs ftcabcr, on flowers. 



CISTELIDtE. 



A/li'rii/,1 aim and pmnctulata, on dry twigs 

 If'/iin iinnis, on bushes and dead branches 

 < 'ixiclii breris and margbudd, on flowerini 



trees. 

 hontira, on flowers and bushes. 

 Mycetochares, on old wood, but rare. 

 Chromatia aiiKcna, rare. 

 Cd/iiiorJirod and Andmrhims, on hnshc; 



and old twitrs. 



PYTHID.E. 



Boi-dx iinieolor, under pine hark, rmce 

 found across the Free Bridge. 



Pi/llio (Hiiericanns, under bark of stumps, 

 rare. 



S(dpingns virescena, rare, two specimens. 



lihinoKioni.s viridianieus, one specimen. 



}firrniiitu(s 

 hushes. 



CEDEMERIDJ^.. 



firrlcav.v, verv c< 



