58 NATHAN BANKS. 



rise to a large, stiff, curved bristle ; cephalothorax as long as broad, rounded, low, 

 head elevated, clypeus high and concave, eyes large and close together; mandi- 

 bles moderately large, in % with a down-curved spine from inner edge of base, 

 the two, as seen from above, close together and not diverging. Legs long and 

 slender, metatarsus i about three times as long as tarsus 1 ; sternum as broad as 

 long, sides rounded, broadly rounded behind, in the % there is a conical hump 

 on each anterior corner. Abdomen higher than long, somewhat compressed ; re- 

 gion of epigynuni swollen, a large brown plate, concave behind and each side 

 extending backward to the furrow. The % palpus with the femur swollen at 

 tip ; the patella short ; the tibia gibbose above ; base of tarsus short, with a 

 slender projection on the outer side, bulb rounded, as large as tibia, higher than 

 long, ou inner side near tip is a darker lunate body, tube stout, shorter than bulb, 

 oblique at tip, its lower edge projecting. 



Ft. Collins, Colorado, in a Louse (Mrs. Ninette Baker). 



CECOBIID^E. 



Tlialainiii floriilaiia n. sp. — Length 9 2 mm. Cephalothorax pale 

 grayish, blackish on edges. Abdomen grayish, blackish on sides, no silvery s])ots, 

 venter pale. Legs grayish, the femora show a blackish spot in middle of under- 

 side; sternum and coxse pale yellowish ; structure similar to T. parietali/i, but the 

 legs are a little shorter and stouter; the epigynum consists of two small conni- 

 vent holes on posterior margin and a bifid median furrow in front. 



Lake Worth, Florida (Mrs. A. T. Slosson). Readily separated 

 from T. parietalis by its nearly uniform gray color and shape of 

 epioynum. 



DRASSID.F. 



Micaria punctata uov. sp. — Length 9 ~ mm. Cephalothorax blackish, 

 basal joint of palpus black, rest white ; femora of anterior legs black, rest of 

 these pairs white (posterior pairs missing) ; sternum pale yellowish. Abdomen 

 black above, on basal half four white spots forming a square, and on median line 

 two elongate white sjjots; on posterior half there is a row each side of three 

 small white spots; on the lower sides there is an oblique white spot near base, 

 and another near middle, venter pale; cephalothorax short and broad, anterior 

 row of eyes nearly straight, a. m. e. fully their diameter a])art, closer to the 

 equal a. s. e. ; posterior row barely procurved, p. m. e. more than diameter apart, 

 oblique, hardly their diameter from the equal p. s. e. ; sternum very broad, sides 

 rounded, pointed between the hind coxse. Legs moderately short, with some 

 scattered hairs, no spines, femur i about as long as width of cephalothorax. Ab- 

 domen twice as long as broad, not constricted, broadest near middle, tapering 

 and pointed behind, covered above with blackish, somewhat iridescent scales ; 

 the epigynum consists of two openings about twice as long as broad, constricted 

 in the middle, leaving a septum between them about as broad as their short 

 diameter. 



One sjK'c'imen, Puiita Gorda, Florida (Mrs. A. T. Slosson ~i. Our 

 smallest si)ecies. 



.'Vli(*ai'ia coloradoiisis nov. sp. — Length % 4 mm.; ceph. L6 mm. long, 

 1 unu. broad : a J is I! iniii. long. Cephalothorax, sternum and legs light brown- 



