AMYCUS. 195 
4. Amycus pacatus. (Tab. XV. figg. 3, 3a, 3.) 
Amycus pacatus, Peckh. Occas. Papers Nat. Hist. Soc. Wise. iii. 1, p. 20, t. 1. figg. 5-5 ¢ (3) 
(April 1896) *. 
Type, 3, in coll. Peckham. Total length 8 millim. 
Hab, CENTRAL AMERICA 1, 
_ Peckham gives no distinct clue as to how this species is to be distinguished from 
A. hieroglyphicus, except that in A. pacatus the “ falces are almost as long as the 
face”; while in A. hieroglyphicus the “falces are plainly shorter than the face” 
(see his Table on page 6). The value of this distinction all depends on the exact 
meaning one ascribes to plainly and almost. Considering the variability in the form of 
the mandibles in the males of the Salticidee, one would have hoped for a more satis- 
factory distinction. Our figures of this and of the next species are taken from his work }, 
5. Amycus fallax. (Tab. XV. figg. 4, ¢; 5, 2.) 
Amycus fallax, Peckh. Occas. Papers Nat. Hist. Soc. Wise. ii. 1, p. 22, t. 1. figg. 8, 3a,b(¢), 
3c (¢) (April 1896) *. 
Type 3d, gynetype 2, in coll. Peckham. Total length, ¢ 6, 2 5:5 millim. 
Hab. Panama}. 
The difference between this species and the two foregoing lies in the absence of red 
hairs round the eyes. 
6. Amycus longipalpus. 
Amycus longipalpus, Peckh. Proc. Nat. Hist. Soc. Wisc. 1885, p. 66, t. 2. fig. 3 (¢) (Dec.)'; 
Occas. Papers Nat. Hist. Soc. Wise. iii. 1, p. 19 (¢) (April 1896) *. 
Type, do, in coll. Peckham. Total length 6 millim. 
Hab. Guatemata!?, 
Peckham says there are several species closely allied to this one, and the figures of 
the tarsus and palpal bulb are decidedly different from those of A. palpinalis. The 
apex of the spine is aculeate, instead of enlarged, while the tarsus itself, as drawn, is 
much shorter. The Table on page 6 of his work ? leaves one to infer that the mandible 
has no apical apophysis, but the text describes such a tooth. It is stated on page 202 
that the tibia of the palpus has a strong apophysis at the distal end, on the outer side. 
There may, however, be several species of which this would be true, e.g. A. guadri- 
guttatus. One needs to know the length, breadth, and shape of it, if the character is 
to be of any practical value. 
7. Amycus palpinalis, sp.n. (Tab. XIV. figg. 11, 11 a-e, 3.) 
Type, ¢, in coll. Godman & Salvin. Total length 7-5 millim. 
For characters, see the Table of species. 
Hab. Panama, Bugaba (Champion). 
