AMERICAN APTERA. 59 



ish yellow, without iiiarkings, except tlic nii'tatars;, whit-h are iiifiisciited. Ab- 

 domen black above, jjaler l)elow, clotlieil with {iieenish iriilescent scales, a narrow 

 white band before the middle; eephalothorax narrow; anterior row of eyes short, 

 a. ni. e. about their diameter apart, nearer to the a. s. e. ; posterior row longer, the 

 p. m. e. fully their diameter apart, scarcely so far from the p. s. e. ; sternum a 

 little longer than broad, pointed behind, sides rounded. Abdomen one and two- 

 thirds longer than broad, widest at middle, a hard spot at base, not consti-icted ; 

 the % palpus is similar to M. constrictd, but the tibia is shorter, the projection on 

 the outerside very much larger and stouter, being nearly as long as the width of 

 the .joint, the jialjial organ has the tube longer than in M. constricta, the inner 

 tube shows as in that species, and there is a hook in the same position; on the 

 tarsus near the tip of the tube are three very stout black spines: the epigynum 

 consists of a somewhat quadrangular cavity with rounded corners, brosuler behind 

 tlian long, and divided by a narrow septum : in the bt)ttom the anterior darker 

 portion is oblicjuely separated from the smaller posterior porti(m. 



Ft. Collins, Colorado (Mr.s. Ninette Baker'. One male has the 

 eephalothorax and sternnni wholly infuscated. 



Jliearia porlectst nov. sji. — Length 2.8 mm. ; ceph. 1.2 mm. long, .Ho mm. 

 wide. Ceplialothorax dark brown, clothed with white hairs; femora i and it 

 black, rest of legs pale yellowish ; sternum blackish. Abdomen black, clothed 

 with iridescent scales, a band at base and a nai-row one before the middle, white ; 

 a. m. e. hardly their diameter apart, close to a. s. e. ; p. ra. e. about their diameter 

 apart, nearer to p. s. e. Legs moderately short, femora stout; sternum plainly 

 longer than broad, tapering and pointed behind ; abdomen over one and a half 

 times longer than broad, cylindrical, not constricted, and without a hard spot at 

 base; the % palpus has the tibia but little longer than broad, and with'a short 

 stout projection on the outer tip; tarsus slender, bulb short, very convex, coni- 

 cally swollen in lower part, a large i)ronunent hook above, the tube short and on 

 the inner side, not at tip of bulb. 



Ft. Collins, Colorado (Mrs. Ninette Baker). 



Micaria |>alli<litari«iis nov. sp. — Length 4.6 mm.; ceph. 1.9 mm. long; 

 tibia, j)his patella iv, 2.O.") nun. Cephalothorax yellow, blackish near base, mandi- 

 bles and sternum yellow; lirst pair of legs wanting, other femora brownish or 

 blackish, rest of leg ii pale, patellai of iii and iv pale, lineated with black, tibia 

 and metatarsus iii brownish, tibia and metatarsus iv black, tarsi iii and iv pale. 

 Abdomen black, covered with scales having a greenish reflection ; a band of 

 white scales just before the middle, narrowly interrupted above, broadly below. 

 Head of cephalothorax narrower than in M. lotujipes ; sternum long, pointed 

 behind ; abdomen a little constricted just before middle ; the legs are very slender, 

 there are several si)ines under tibia ii ; p. m. e. barely once their diameter from 

 the p. s. e. ; more than twice that distance from each other. 



One specimen ^ 9 ), Southern California. 



Our species of Mhcurin may l)e separated l)y the following table : 



1. Abdomen not constricted 2. 



Abdomen constricted 5. 



2. Abdomen with several small white sjiots above piiiiclata. 



No small spots above '6. 



TRANS. .\M. KNT. SOC. XXIII. MARCH, 1896. 



