12. BULLETIN 416, U. S. DEPARTMENT OF AGEICULTURE. 



molt took place on a warm morning and required less than 3 minutes 

 for its completion. The male has been seen to assist in the molting 

 of the female deutonymph. The attending male, following the 

 transverse splitting of the skin, inserted his palpi, on one occasion, 

 under the old skin, and forcibly pulled it over the end of the female's 

 abdomen. 



THE ADULT. 



Description of Female (PI. II, fig. 5). 



Color variable; at times rusty green, sometimes greenish amber, or 

 yellowish, at times almost black, but more often brick red or ferrugi- 

 nous red. Pigmented blotches occur almost invariably on the sides 

 of the body, which are usually coalesced to form two large dark spots, 

 one on each side extending from the back of the cephalothorax to the 

 posterior region of the abdomen. These are often interrupted pos- 

 teriorly to form a large anterior and a small posterior spot. These 

 spots arise from underlying paired organs. Almost directly over 

 coxae II are the carmine eyespots located on each side, near the 

 margin of the cephalothorax. Legs pale amber, much paler than 

 ground color of body. Palpi pale salmon. Dorsal bristles pale, not 

 arising from tubercles. Body pyriform oval, widest across posterior 

 region of cephalothorax; bristles in four rows, each succeeding pair 

 becoming shorter; the frontal pair a little over half as long as the 

 subfrontal pair, which, like the median pair next behind, are two- 

 fifths the greatest %vidth of body. Mandibular plate about twice as 

 Jong as broad, tapering slightly forward, broadly rounded at tip, with 

 a slight median notch. ''Thumb" of palpus in shape somewhat 

 like a truncated cone, the dorsal face about one-third longer than 

 greatest width at base, the upper surface twice slightly depressed 

 transversely, with an intervening dilation, bearing on its tip a 

 subcylindrical "finger" which is about two-fifths as wide at its base 

 as the distal end of the "thumb." On its upper side, just above the 

 "finger," are two stout, straight hairs arising close together, one 

 medially and the other laterally, which do not greatly exceed in 

 length the "finger." Near the middle of the upper side is a smaller 

 "finger" three-fourths the length and one-half the width of the ter- 

 minal "finger" and very similar to the latter. Between this dorsal 

 "finger" and the base of the "thumb" are 2 strong, curved hairs about 

 equaling those at tip of "thumb," and at middle of latero-ventral 

 aspect of "thumb" arises a hair about equaling the latter. The 

 penultimate palpal joint bears the usual claw, which reaches about 

 to the basal "finger," and also bears 2 bristles, one arising dorsally at 

 base of claw which hardly equals the length of claw, and one aris- 

 ing near center of outer side which about equals the dorsal bristle. 

 Legs I hardly equal the length of body from the anterior margin of 



