Zool.-Vol. I.] BANKS— MEXICAN ARACHNIDA. 263 



one, and behind this a smaller one, everywhere with black bristles arising 

 from black dots. Cephalothorax broad, but little narrowed in front; A. M. E. 

 nearer to S. E. than to each other; S. E. on a little white elevation; four M. 

 E. equal in size, forming a square; four bristles each side on front margin, one 

 at corner, and three toward the middle. Legs short; four pairs of spines 

 under tibia? and metatarsi I and II; sternum nearly circular. The epigynum 

 shows a transverse curved cavity, behind it a dark transverse body, in front 

 a rounded border, above which is a dark spot. 



One female; Tepic, Oct. 



208. Misumena decora, sp. nov. 



Plate XVI, Fig. 13. 



Length 2 6 mm.; ceph. 2.5 mm. long, 2.6 mm. broad; femur I 3.9 mm. 

 long. Cephalothorax pale, rather darker on the sides, a transverse white 

 spot behind with an extension forward on each side, somewhat reddish be- 

 tween the M. E.; mandibles pale, with a brownish spot at the base; in most 

 specimens the legs are all pale yellowish, with red spot on the anterior tibiae 

 before the tip. In two specimens, which have deposited their eggs, the anterior 

 femora, patella?, and tibiae are of a uniform pale red; sternum pale; abdomen 

 whitish, marked above with red, a basal spot (mostly divided by a white line) 

 followed by two converging rows of transverse spots, the basal pairs enclosing 

 black dots, a red stripe on each anterior side, and on posterior sides oblique spots 

 to the spinnerets. Eyes of anterior row at about equal distances; four M. E. equal 

 and form a square; four bristles each side on anterior margin. Legs long; 

 five or six pairs of spines under tibiae I and II, eight pairs under those meta- 

 tarsi. The male is 3.2 mm. long; femur I 3.2 mm. long. Abdomen with two 

 rows of dark spots above; femora I and II dotted with red, and red bands at 

 the tip; also red at tip of patellae, base and tip of tibiae, and apical halves of 

 metatarsi and tarsi. The style of the palpus is upon the ventral face, and not 

 partly at right angles to it, as in many species. 



Several specimens; El Taste, Sierra Laguna, and Sierra 

 San Lazaro, Sept. 



209. Misumena peninsulana, sp, nov. 



Plate XVI, Fig. 3. 



Length 2 6-6.5 mm.; ceph. 2.4 mm. long, broad 2.4 mm.; femur I 3.2 

 mm. Cephalothorax, legs, mandibles, and sternum uniform pale yellowish, 

 a white spot on middle scarcely distinct; abdomen whitish above and beneath, 

 five impressed dots. Eyes of anterior row at equal distances; P. M. E. 

 scarcely further apart than A. M. E. ; four bristles each side on anterior mar- 

 gin. Legs moderate; four to five pairs of spines under anterior tibiae, seven 



