BEETLES OF THE DISTRICT OF (OLl'MBIA—llLKE. 



55 



ECOLOGICAL NOTES- ( 



Imsliep. 



liaz.'l aii.l ..tl 



CURCULIONID.E. 



Si t une.^ flavf.scei IS and Jtlspididns, very coni- 

 iiion on clover. 



Itln/cents novebomcensh, on hickory. 



Ap'ton. All species occur on dry or moist 

 meadows, on shrubs and bushes; only 

 a few of them have been bred, and 

 the food plants of these have been 

 repeatedly recorded. 



Podapiou gaJlicohi, l)re.d from its jiall on 

 Pbms rigkla. 



Phytononnis comptus, on meadows; jmnc- 

 tatus, is the well-known imported clover- 

 leaf beetle. 



Listronotuf:, all the species are found on 

 sandy and muddy grounds near water. 



Macrops, like LisfroiiotKK. 



PIssodes sfrohl, common on pine. 



PdchylobiKs and ILjlohhiK, like Pissodcs^. 



Eudocuiiiix iiKinnerln'liiii, rare. 



Lixiiit, all occur on rather low meadows. 



Donjtoinnx hrnncollis, on poplar. 



Pachiiphdiicx amcenus, on Cuscuta. 



Smicrony.r. All the species are found by 

 sweeping on meadows. 



Promecotarmia gibbirostris, like Smicronyx. 



PhyUoiroxferruginevs, on bushes. 



BirfcJiybdiiius, OiiyHtylis, EixhdKs, Tany- 

 spliyrus, Lixsarlioptitf!, and Bagous, all 

 these genera are found on palustral 

 plants. 



OtidocephaJiix. Our species are iiKiuili- 

 nous in Cyuipid galls. 



Magdalis olynt, on hickory; perforata and 

 hispoidef^, on i)ine; pandura and pallida, 

 on elm. 



Tachypteruii qnadrigibbus, on C'rat;cgusand 

 apple. 



Antlioiioiiiini gnlari>i, in pods of cassia; 

 siduralis in wild plum; xycophanta, in- 

 quilinous in willow galls; juiriperiiinx, 

 in the juniper fungus; luolecuhtx, on 

 solidago; augulari.'!, in Cassia marylan- 

 dica; signalns in Fragaria and rosaceous 

 plants. 



Pseudanthononia.t cnilngi, on crata'gus. 



Xanthus 2Jygm;i'iis, on juniper. 



Elleschus epJiippiatiis, on willow. 



tus carpiai, on willow blossoms. 



< h-clusl,'s .■<((/ i, -is, iiigrr, iiallidicornis, on 

 willows; bclidi'li, on Bclida nigra. 



Priononu'vas calccatas, on sassafras. 



Piazorhinus Scutellaria, v(M-v c((mmon on 

 bushes; piclus, rare. 



Thysanocnemis helvolvs and fraxini, in 

 seeds of FVaxinus. 



Ploceies ulmi, on Cephalanlhus ocridimtalis. 



Gymneiron teter, on verbascum. 



Miarus hispidulus, on Lobelia syphilitica. 



Lsemosaccus plagiatus, on oak bushes. 



Conotrachchts juglandis and elegans, on 

 hickory; /■ralagi, on Crataegus; nenu- 

 phar, on plum; ttiberosiiK, on urtica; 

 Jissunguis, on hibiscus; anaglypticus, 

 under moist bark and various bushes, 

 very common; hispidus, rare. 



Rhyssematus lineaticollis, in the pods of 

 asclepias. 



Chalcodennu.'< collaris, rare. 



Microhyus setiger. on dead branches. 



Acamptus rigidus, in red-rotten wood. 



Acalles, all under decaying leaves. 



Tyloderma foreolatum, in stems of (Eno- 

 thera biennis; fragariie, on fragaria; 

 ;ereum, on plants growing in bogs. 



Phyrdenus undatus, on Solan tmi nigrum. 



Cryptorhynchus. All species are on dead 

 twigs. 



Piazurus oculatn.^, on lu;shes, very com- 

 mon. 



Copturns binolatus, on Oledilschia triacan- 

 thos; quercus, on oiik; loiajiilvs,m poda- 

 piou galls; minvtiis, on oak. 



Acoptns srduralis, connnon on dead 

 branches. 



Taclii/gniiiis leconlri, on oak; l<u-tliprs, rare. 



Monnnyrhns rnlprrahis, on iris. 



( rajiDiiiiis iiuiipAali.'t, on yrapes. 



AcaiitJaiscelis curtu.'< and acrjdialns, com- 

 mon on polygonum. 



Aalciitcs, all on swampy meadows; nelnt- 

 losiis an(]'asper, rare. 



I'e/enosomiis cristaliis, one six'cimen. 



Ac<dl<)di's reidrirasiis. rare. 



Ccaiorlrynclras rapu, on lepidium and 

 other cruciferous i)lants; the other 

 species all live on plants in marshy 

 ground. 



Cirlugaster zinnia'rmamii, on swampy 

 ]ilaccs. 



Prngitster crctara, like Coelogaster. 



