108 On North American Spiders. 



Epiblemum, (Mihi.) 



Eyes 8, somewhat unequal in size, » « . ]egs L 4. 3, 2. or 



^.^-^ ° o o ° 



1. 4: 2.. 3 5 lingua short, triangular j maxilla somewhat pointed above, 

 and a little inclined over the lingua ; mandibulse nearly horizontal, 

 slender, as long as the cephalothorax, tooth as long. Two species. 

 These might be left with Attus, to which they are closely related, 

 but as that genus is large, it needs divisions, and the mandibulce of 

 these OiFer a peculiar and striking character, I have concluded to 

 make the first of the two following species the type of a new genus. 

 ^piBLEMvufaustum obscure, cephalothorax edged with white, with 

 two spots on the disk also white ; abdomen edged at base, and with 

 four short bands, white. E. Palmarum, deep ferruginous, with two 

 bands on the cephalothorax and the abdomen, white ; second, third 

 and fourth pair of legs whitish. 



Beside these, I have three species of Attus, all very small, which 

 have the habitus of Formica ; so much like ants' in many respects, 

 that for a long time, I neglected to collect them on that account. 

 Their body is elongated, slender, nodose; and their legs also are 

 slender, either 4. 3. I. 2. or 4. 1.2. 3. The cephalothorax in one, 

 and the abdomen in all, are contracted in the middle, so as to give 

 them the appearance of being divided in three or four joints. The 

 other characters, coincide generally with Attus. They are found on 

 plants. Should it be thought convenient, those and any other new 

 species with those characters, might be collected under the generic 

 name of Synemosyna. 



* * * -x- * * -x- * 



It will be observed, that, in the above arrangement, I have departed 

 from that of Latreille in no essential point, but justice requires us to 

 notice, that after the labors of the greatest living entomologist, the 

 method of Walckenaer, may still be considered as somewhat more 

 natural than that of Latreille. I have given a sufficient account of the 

 American genera, known to me, to allow any person whose taste may 

 lead bira to study this branch, to pursue the subject to a certain ex- 

 tent, and to assist in bringing my Monographia to a less imperfect 

 state, than that in which it now is. It is evident to me that if I had 

 correspondents in the various states of this Union, who would be wil- 

 ling to send me specimens, I could double my collection in a few 

 years. Some persons have been kind enough to send me several 

 interesting species, particularly Dr. Harris of Milton, and Dr. C. 



