sn:i'\\Mii,v in. AMSO.MOKI'IIIX.K. 145 



times as long as pronotum ; intermediary segment invisible; coxce 

 visible from above; tibia' deeply and widely notched at apex be- 

 low, thus forming a "sunken areola" which receives (he base of 

 tarsi Avhen the latter are reflexed. To this subfamily, as ;M pres- 

 ent restricted, belongs in our fauna only the single genus: 



I. AXISOAIORPI-IA Gray. 1835. 18. (Gr., "unequal'' + "form.") 



Body broad and stoul, especially so in female; head horizon- 

 tally attached to the thorax, unarmed, not more than one and a 

 half times as long as broad. Pronotum furnished with distinct 

 odoriferous glands; mesoiiotnin nearly one-fourth longer than 

 metauotum; legs unarmed, stout, thick, unequal, the middle pair 

 the shortest: abdominal segments, especially those of female, sub- 

 quadrate or transverse, the seventh and ninth subequal in length: 

 cerci of both sexes short, stout, cylindrical, pubescent. 



Five species are known, all from the Western Continent-. iwo 

 of them occurring in our territory. When disturbed or picked up. 

 they have the power of exuding from glands beneath the protho- 

 rax a vapor from the male and a white milky fluid from the fe- 

 male. This is spurted out through a pore near the front angles 

 of the pronotum and possesses a peculiar, though somewhat pleas- 

 ing odor, which has been likened to that of the common everlast- 

 ing. <!iiiii>]i<iiiitni olilHHifoliiiiii L. The secretion is doubtless used 

 as a defense against certain enemies, being probably very distaste- 

 ful, and perhaps harmful, to birds and rapacious insects. Scud- 

 der i IST'igi has noted this secretion, and concludes that the Phas- 

 mid;e with their slender form and sluggish movements have espe- 

 cial need of such a weapon as these glands furnish. 



KEY TO XORTH AMERICAN SPECIES OF AXISOMOIII'II A. 



a. Larger, male averaging 45, female about 65 mm. in length: black dor- 

 >ul and lateral stripes broad, conspicuous; head distinctly longer 

 than broad. 62. r.rpRESxoi 



fid. Smaller, male averaging not more than 35, female about 55 mm.; dor- 

 sal and lateral dark stripes narrow, inconspicuous; head but slightly 

 longer than broad. 63. FKKHIMXEA. 



62. AXISOMORPHA BUPRESTOIDES (Stoll), 1813, 68. Larger Striped Walk- 

 ing-stick. 



Male brownish-yellow, female usually more or less fuscous, both with 

 a broad blackish stripe extending along the back from front of head to tip 

 of abdomen, and another each side; legs dark brown, often paler in male 

 Head somewhat swollen in front, about one-third longer than broad: an- 

 tenna? about three times as long as front femora. Pronotum nearly twior 



