72 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXVIII. 



tarsi, fr. arhort'i Banks and G. ajjinis Banks occur on the bark of 

 trees, (r. Ji!rsiit(( Banks is a pale 3^ellowish form, with a l)ri.stl3^ boch', 

 occurring- in dry sandy places. 



One of our conuuon forms and one of the largest of the family, 

 being fully one millimeter hnig, is Liacariia n'ltidnx Banks. It occurs 

 on th(> ground imder pieces of wood, 

 bark, stones, and fallen leaves. A 

 species of Eremivim^ E.p'dimuK Banks, 

 is connnon in the crevices of l)ark of 

 living trees. There are four rows of 

 bristles on the abdomen. A .species 

 of Soitorertcx., S. inartnus Banks, is 

 not unconunon on rocks between tide 



Fig. 137. — Car.vbodes brevis. 



Fig. 13S.— CVMBEKE.M.EUS M.iRGINALIS. 



marks on the Atlantic seashore. It appears to lack the pseudo- 

 stigmatic organs and is othei'wise peculiar. X<)t<(f<2)i>< piau-ti/Iatus 

 Banks is a pretty species, with a deeply pitted dorsum, and is found 

 in decaying fungi. 



Of Carahodt'S we have several species, some of which are found in 

 fungi. Our most at)undant species, C ndjer Banks, which occurs in 



fungi, has four rows of spatulate hairs on 

 dorsum. ('. ohionga Banks was found 

 boring under the bark of a stump, and it 

 looks much like a tiny scolytid beetle. 

 A species of Orihata, 0. /ni/nda Banks, 

 occurs in moss and on decaying- animal 

 substances. It is pale yellowish-brown in 

 color iuid appears to be widely distributed. 

 The largest Oribatid we have is JVeolivdes 

 (■oiicentrioi)^ Sav, a black species with 

 concentric rings on its elevated abdomen. 

 It occurs in crevices of bark of living 

 trees throughout the Eastern States, and also in Europe. Our one 

 species of Chjmherehveem, C. manjinalh Banks, occurs under lichens 

 on the hark of trees in the Eastern States. 



We have various species of X»thrus. They are very rough-looking 



Fig. 139.— Xeoliodes concentrict.- 



