44 



PROCEEDTNriS OF THE XATTOXAL }frsEVM. 



ECOLOGICAL NOTES— Continued. 



EnrJonnich >i.f hlgiittdliix. 

 numbers under loon 



■lonietiiries in great 

 l)ark. 



EROTYLID.E. 



L((ii</nrii(. Our species ure most fre- 

 (luently found on swampy meadows; 

 mnznrdi, the most common species. 



Euxestus punctatus, under old bark in- 

 fested with fungi. 



Dacne 4-maci(l(ifa, on white fungi, grow- 

 ing on old logs. 



Megalodaaie, like Eu.rr.^tiis. 



Inchyrua //-pimctaliix, in comjiany with 

 Ddcne. 



Mijcotrctiix s(ni<ji(i)ilj>aniis and /iiilchi'r, in 

 a certain kind of toadstool. 



Tritoma. All species live usually in large 

 numl>ers in toadstools and various 

 fungi. 



COLYDIIDvE. 



Siiiichita ohscKra, found exclusively on red 

 oak; the other species occur under 

 bark of dead branches of various decid- 

 uous trees. 



Cicones marginalis, one specimen. 



Ditoma. The species are found under 

 bark of all sorts of trees. 



Coxelus gutfulafiis, not rare on dead 

 branches. 



Lasconotus referendarius, under pine l)ark 

 in the galleries of Scolytids. 



Aulonium and Colydium, the species of 

 both genera are found under bark and 

 in twigs of coniferous and deciduous 

 trees. 



Aglenusbrunneiis, introduced from p]urope; 

 one specimen found by Mr. Pergande. 



Oxylsenms americanus, rare. 



Penthelispa and Pycnomerux, under moist 

 bark of dead pines. 



ButJirideres gerninatus, very common under 

 dry oak bark. 



Erotylathris exaratus, very rare. 



Cerylon castaneum, under all sorts of bark, 

 very abundant. 



PhUothermns glahriculus, very common in 

 decayed wood. 



MURMIDIID^. 



Mxnnidiiix oralis, introduced, in old stored 



rice. 

 Mychocernx de/iirssiis, under moldy bark. 



RHYSSODID^. 



Rhyssodes and Clinidium, both genera 

 found under bark of decayed wood. 



CI^rTMID.K. 



Silraniis niiriuamensix and adi'cna, cosmo- 

 politan, common; the others under all 

 sorts of bark. 



XaiD^ibius clavicoriii.s, under bark, rare; 

 rt'pandus, very rare. 



< 'dtogenus rufus, very common under bark 

 of various trees. 



J'ediariis depressiis, under bark, rare. 



Ciu'iijiis (iaripes, very common under bark 

 of deci<luous trees, especially Llrlodcn- 

 drort. 



Ino reditsd, under bark of black locust. 



Liviitopldd'iis, species more or less common 

 under bark of various deciduous trees; 

 iscluvarzi, very rare; a7u/i(sf>diix, in gal- 

 leries of Scolytids. 



Lathropm rermdis, very common on old 

 twigs. 



Dysmerus basalis, in l>ranches of J!fins 

 toxicodendron, common at Bladensburg. 



Brontes dubius, under l^ark, abundant; 

 debilis, one specimen. 



Telephanus velox, under old leaves, one of 

 our commonest insects. 



CRYPTOPHAGID.E. 



Telrnatophibis and Lohcrus, ])y sweeping 



humid meadows. 

 Tomarits jndrlii'lhis, under old leaves, 



chips, etc., very common. 

 Antheropliugus ochraceus, rare, on flowers, 



inquilinous in nests of Botidms. 

 Henoticus serratus, the specimens found 



here may belong to a distinct species, 



rare. 

 Cryptophagvs. Six species occur in the 



District, which have not yet l)een 



studied. 

 Cfenoscelis. There are seven species fi nmd 



here, which can not be nametl at pres- 

 ent; they occur under old leaves. 

 Ato>nariaepMpplata,distmcla,andochracea. 



Eight species have been found, among 



which only these three are named at 



l)re.sent. 

 Ephistciiiu.'^ apicidis, very common under 



old leaves and chijjs. 



