BEETLES OF THE DISTRICT OF COLUMBIA — VLKE. 



51 



ECOLOGICAL NOTES—Continned. 



AcdiilliodiTis ijiiadrij/llihiis, rather rare; 

 (leripii'iis, very coniiiion; morrisn, very 

 rare. 



Lrptostijlux and Linpiix, all uii <il<l twiir.s 

 and dead branches. 



D/.'ctc>< npiuosKs, coninidn (ni various weeds. 



Lepturc/t's, like Lepto^lijlii.^. 



Ilyperplatys, like the preceding. 



Vrographis fasciata, on deciduous^ trees. 



Ceratograjjliis piisiUufi, in pine trees. 



Ac(t77thocinus obsolelus and nodosus, in pine. 



Pogonochenis mbMs, in pine, rare. 



Ecyrus dasycerw^, very common on decidu- 

 ous trees. 



EiijKit/niiiiiK liimi')tt(i.sii.^, not rare on pine; 

 leslitii-^, (in l)uslies; xnlxiniuttiis, rare on 

 beerh. 



Oiiciderfs cniijiihilii, on persimmon. 



Atd.riii i-ri/j)l>i, on old l)ranehes. 



Ilijijiojisi.s lniiiiisr((t((, on weeds. 



Sapcrtlii ohllijiKi, on alnus; Candida, on ap- 

 ple trees; iridentata and rcsfita, on elm; 

 lateralis, on willows; jmndiconix, on 

 A'/ms toxicodendron. 



< iherea bimaculata, on rubus; 3-j)iiiirlata, 

 on solidago; oceUata, and gracilis, rare; 

 ruficoUis, on sumac and sassafras. 



Ti'trops monostigiita and jiicunda, on mead- 

 ows. 



Tctraopes tetraophthalmus, on Asclepias cor- 

 nuti; eanteriator, on an orange-colored 

 asclepias; 5-macidatus, on specimen. 



A ntphionyclia flammata, on bushes. 



Ihjsphaga tenuipes, in hickory; ?^ot's, one 

 s])ecimen. 



CHRYSOMELID.E. 



Doiiacia ri net ironiis,palinata, and jiiscatri.r, 

 on aquatic ])lants; the others on swami)y 

 meadows; the only specimens of /(//yvo- 

 /ewco were found at electric light. 



Ihcmonia nigricornis, in SAvamps on water 

 plants. 



Orsodacna atra, on willow blo.ssoms in 

 early spring. 



/I'ltgophora pubenda, on jjuplar. 



Si/iieta ferruginea, rare. 



Lriiia sai/i, on ('<niniiehina rirginica, along 

 the Potomac F'lats; trilineata, on pota- 

 toes; 6-jiinirtata and hrinniln>I/is, in 

 njeadows. 



Vrioceris asparagi and IJ-jyunctata, on as- 

 paragus, imported. 

 .lnom«a laticlavia, connnon on robinia. 

 Coscinopiera dominicaiui, on bushes and 



herbs. 

 /labia and Sa.rlnix, on meadows. 

 CJda)ni/s, larva on sycamore. 

 E.renia gibber and ronspersa, in meadows 



and on shrubs. 

 Bassareus and Cryptocephalas. All species 



of these genera live on various flowers 



and bushes; only schreiberm on pine. 

 Griburius eguestris, on wild roses. 

 I'arln/brachys, like Crypt ocephalus; fridens, 



on /i'/(».s toxicodendrons; there are some 



unrecognized forms. 

 Monaclms, Diachiis, Triachux, all on bushes 



and plants in meadows; Diaclms leris 



and TriacItVK raciiiixare rare. 

 Fidia riticida and /niigipcs, common on 



grapevine. 

 Xanthoma, very comuKjii on various 



bushes. 

 Mijochrovs deiiticd/lls, by sweeping mead- 

 ows. 

 Clyptoscelispubescens and barbafa, common 



on pine. 

 (i'raj)hops, in meadows, esj)ecially on 



I'lover. 

 Typophorux camlliis and varieties, very 



common in meadows; riridicyaneus, 



rare. 

 Mdacliranta, on bushes, especially oak. 

 Chrysocliii.^ atiratiis, common on apocy- 



num. 

 Tyniiies tricolor, connnon on l)ushes. 

 Colaspis, common on meadows and 



bushes. 

 RJatbdopteras picipes, like (^'o/as]ns. 

 Xodonota, on flowers and bushes. 

 Chrysodina, like Colaspis, very common. 

 Prasocuris raripes, on swampy grounds. 

 Labidornera clivicoUis, on Asclepias incar- 



Ii ptinutarsa decendineata, the well-known 

 potato beetle; juitcla, has disappeared 

 from our fauna since the arrival of 

 decendineata. 



Zygogramma and Calligrapha, all on mead- 

 ows and weeds. 



I'lagiodera riridis, very common on cru- 

 cilcrou:; jihuits. 



