\''ol. XXviii] ENTOMOLOGICAL NEWS 195 



IV about as long as width of body; all tarsi shorter than the pre- 

 ceding joint, but more plainly so in leg I; all with long, scattered 

 bristles, most of them more than twice as long as the width of a 

 joint. Palpi very short and stout; thumb cylindrical, ending in 

 three equal fingers. 

 Length, .65 mm. 



From Mesa, Arizona, on barley, March 27, 191 3, collected 

 by R. N. Wilson. 



TETRANYCHINA n. gen. 



There are no prostigmatal horns ; the legs are very long and 

 slender, legs I and IV longer than body, and the tarsi much 

 shorter than the preceding joint, each ending in a toothed 

 claw, tarsi I a little enlarged near tip ; palpi stout ending in 

 thumb and fingers. Body with stout, usually serrate bristles. 



Type. — T. apicalis n. sp. 



Includes also, I presume, the Ncophyllohiiis harti Ewing. 



Tetranychina apicalis n. sp. (PI. XIV, fig. 7). 



Body less than twice as long as broad, strongly convex above, 

 a pair of bristles on the front, and two pairs of erect bristles near 

 the tip of abdomen, the hindmost pair almost clavate, both pairs 

 arising from tubercles and are minutely serrate. Legs long and 

 slender with a few very short, fine hairs; leg I much longer than 

 the body; femur I nearly as long as the body; leg II hardly more 

 than one-half as long as leg I, leg III longer than body, and leg 

 IV much longer, . but shorter than leg I, all tarsi shorter than 

 preceding joint, and tarsi I plainly a little larger near tip than 

 elsewhere. Palpi rather stout, with a slender thumb, ending in two 

 equal fingers, and a stout bristle or finger, near the upper tip. 



Length, .5 mm. 



From St. Bernard, Louisiana, on white clover, March 24, 

 1912. (Parks). 



STIGMAEOPSIS n. gen. 



Basal part of mandibles united into a plate as in Tetrany- 

 chus, and apical part long, styliform as in that genus. Legs 

 thick throughout as in Tenuipalpus, but not wrinkled, two 

 claws, tarsi as long as preceding joint ; palpi long, large and 

 porrect, with the thumb not extending beyond the claw. Skin 

 not reticulate, but finely striated. Spinning small dense webs 

 under which they live. 



