14 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXVIII. 



ot" a T. It is eoniinon on the g'round under pieces of wood, burk, etc., 

 that ha\"(^ lain there sometime. The first pair of legs is used as 

 feelers. Usually the mites walk slowly, but 

 when disturbed run very rapidly. AVe have 

 several species of Eupodes^ all more or less 

 marked with red. The common one, E. V(vria- 

 hilis Banks, is found in the same places as 

 Linopodix. Another species occurs on the 

 seashore bet\\'een tide-marks. 



The species of Notophallux are blackish, 

 with a red spot above, and red legs. They 

 occur in damp fields, under stones, or in moss. 

 But one species of Tydeus is known from the 

 United States, T. c/Zove/'/ Ashmead. It occurs 

 on orange leaves in 

 Florida, and feeds on 

 the young and eggs 

 of scale insects {Mij- 

 t'daspii^ spp.). It i.s 

 pale reddish or vel- 

 lowish in color and 

 has a subpyrifoi-m 

 body, with rather 

 short legs. Moniez 

 has described a species of Tijdeus{T. Qiiolestdb) 

 as attacking man, nmch on the "red-bug'' 

 style, a ha (/id /'a IS a remarkable genus. The 

 species are pale or whitish 

 in color, and occur under 

 damp, fallen leaves and on 

 moist soil. It is nuich larger 

 than the other species of 

 this fannly, and sometin.es 

 fully one millimeter long.* 

 Its structure is in many 



ways very similar to that of certain Solpugida and 



suggested to Thorell its generic name, which is a 



dimiiuitive of I?/i<(,i% a genus of Solpugida. It is 



probable that it is the most primitive of all existing 



Fig. 10.— TvDEi's, mites,' and points to tlu' close relationship of the 



BEAK AND LEG I Acarlua to the Solpugida. Our connnon species. It. 



jxdi/'da Banks, is found throughout the countrv, but 



more connnonly in the north. Other species are found in P^urope, 



Japan, Kerguelen, Chile, and the arctic regions. 



A I^uropean mite of this family, Ei'ijnetes llindceuin Koch, some- 



-LlXOPODES ANTE.N- 



N.EPES. 



Fig. y.— Rhagidia pallida. 



