Or WASHINGTON-. YOLCMK XII, 1910. 



Oribatella angusta, new species. 



Dark red-brown. Body rather elongate, nearly twice as long as broad. 

 The cephalothorax with broad lamella each side reaching over the tip 

 of the head, emarginate at tip, and with a moderately long bristle. 

 Pseudostigmatic organ of moderate length, clavate at tip. Front of 

 dorsum of abdomen extending out on cephalothorax; wings rather long, 

 not very deep, margins entire, a fine bristle at shoulder and one above, 

 three each side near tip. Sternum with three lines each side, the mid- 

 dle one the longest. The genital opening touching coxa- IV, small, sub- 

 circular, twice its length in front of the much larger anal opening, the 

 latter as broad behind as long, but narrowed in front. Legs short, with 

 mostly simple hairs, some thickened serrate ones on the last and penul- 

 timate joints of legs I and II; hind legs very slender: claws three, unequal. 



Length, 0.7 mm. 



From nest of Keif on avcnin, at Austin, Texas (Brues). 



Eremaeus modestus, new species. 



Dark red-brown ; legs paler. Cephalothorax \\ith four very long bris- 

 tles: pseudostigmatic organ very short and capitate. Abdomen slightly 

 elongate, with a row of four submedian bristles each side and a marginal 

 row of five, and two on each shoulder, shorter than those of the sub- 

 median rows. Venter smooth, genital aperture reaching forward to 

 hind margin of coxa? II, circular, fully two and one-fourth times its 

 diameter in front of the larger anal opening. Sternum divided by line 

 in front, with a line each side; hind coxa- with a faint line reaching up 

 in front of the genital aperture. Front legs rather short, hind pairs 

 much longer, tarsi very hairy ; three equal claws. 



Length, 0.65 mm. 



\Vhittier, California, on orange (Mr. Ouayle). 



Liacarus capitatus, new species. 



Yellow brown, a pale Bellow spot at base of abdomen. A lamella 

 each side on the cephalothorax, and at tip a trans-lamella; superior and 

 inferior bristles stout, straight, and finely serrate, equal in length, and 

 about as long as the side lamella. Pseudostigmatic organ short, capi- 

 tate: Abdomen about one and a half times as long as broad, tapering 

 each wav: above each side with two rows of stout, finely serrate bris- 

 tles, three in inner row, five in outer row, one on humerus, a marginal 

 row. and rather shorter ones at tip, about thirty-four in all. Legs sk-n- 

 der, the basal joints with curved, finely serrate bristles, and the tarsi 

 rath,er shorter than the tibia-; three unequal claws. Venter smooth; the 

 genital opening a little longer than broad, fully one and two-thirds times 

 its length in front of larger anal aperture, the latter nearly circular. The 



