THERIDION. 389 
1. Theridion styligerum, sp. n. (Tab. XXXVI. figg. 24, 244, 3.) 
Type, 3, in coll. Godman & Salvin. Total length 3-25 millim. 
Carapace and legs yellow, the former with a slight, dusky, central, forked line, but no marginal line, the latter 
with the apex of the femora, tibise, and protarsi dusky. Abdomen with a central foliated and lateral 
chalky-white bands; epigynal area and a spot before the spinners black. Mandibles with the usual 
conical spur on the upper outer side towards the base. Palpal organs absolutely characteristic, with the 
apical embolus very long spiraliform, and the sheath-like conductor also very long, geniculate and 
enlarged at its apex. 
Hab. Guatemata (Sarg). 
2. Theridion frondeum. 
Theridium frondeum, Hentz, Bost. Journ. Nat. Hist. vi. p. 275, t. 9. fig. 7 (2); Spid. U.S. 
p. 146, t. 16. fig. 7 (9%) *; Banks, Proc. Calif. Acad. Sci. (8) 1. p. 236°; Emerton, Trans. 
Conn. Acad. Sci. vi. p. 15, t. 3. figg. 1, lg (¢), laf, 1h (2) (1882) *. 
Theridium placens, Keyserl. Spinn. Amer., Therid. i. p. 71, t. 3. fig. 43°. 
Hab. Nortu America 4 ®, Alabama! 2.—Mexico, Tepic °. 
Being unable to settle what is the true 7. frondeum, Hentz, I regard Emerton’s 
identification as correct, for the time being. He has also seen the type of T. placens, 
Keyserl., so that this synonymy can be quoted. ‘The examples, however, of 7. frondeum 
in the Keyserling collection in the British Museum certainly do not agree with 
Emerton’s figures; nor do the specimens from St. Vincent, Antilles, identified by 
E. Simon as 7. frondeum, agree either with Keyserling’s identifications or with 
Emerton’s figures. The fact is that there appear to be numerous species, or at any 
rate local races, of a group of spiders, with pattern and coloration similar, with the 
lines of variation also similar, and with the structure also very much alike, any one of 
which might be identified at a cursory glance with T. frondewm, Hentz. There are 
probably now no means of knowing what the characters of this species really are; and 
the only way of settling it would be to decide upon the commonest form found in 
Georgia, U.S.A., in character not inconsistent with Hentz’s description and figure, and 
call this 7. frondeum. Perhaps Mr. Emerton’s identification of this species is based on 
examples from Georgia; but since he does not say on what grounds he has decided 
the form figured to be Z. frondewm, one can form no judgment as to the value of his 
opinion. 
3. Theridion evexum. (Tab. XXXVI. figg. 25, 25 a-c, 3; 26, 2.) 
Theridion evexum, Keyser]. Spinn. Amer., Therid. i. p. 65, t. 3. figg. 89, 89a (?)*. 
Phyllonethis electa, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 165, t. 20. figg. 2, 
2Qa-d (¢) (nec 3)’. 
Type 2, deuterotype d, of 7. eveawm, in Mus. Brit., total length, 9 6, d 4:25 millim.; gynetype, 2, of 
P. electa, in coll. Godman & Salvin, total length 7 millim. 
Hab. Mexico, Omilteme in Guerrero (H. H. Smith ?).—Cotomsia !. 
