THE FEMALE OF LUCARACHNE BEEBEI GERTSCH 
(ARANEAE: SYMPHYTOGNATHIDAE) 1 
By Arthur M. Chickering 
Albion College, Albion, Michigan 
Miss Elizabeth B. Bryant established the genus Lucarachne in 
1940 on the basis of both males and females taken in Oriente Province, 
Cuba, at 1500 feet elevation. She placed the genus, with some hesita- 
tion, among the Metinae of the Argiopidae and noted that it appeared 
to be closely related to Theridion cidrelicola Simon from Venezuela, 
the male of which is now considered to belong to the genus Lucarachne 
and is included in the Family Symphytognathidae. When Dr. Gertsch 
(i960) described L. beebei from males alone he noted that four spe- 
cies of the genus Lucarachne are now known as follows: L. tibialis 
Bryant from Cuba; L. cidrelicola (Simon) from Venezuela; L. beebei 
Gertsch from Trinidad; L. palpalis Kraus from Honduras and 
Mexico. Dr. Gertsch has recently identified a male L. beebei Gertsch 
from my Panamanian collection of 1936 taken in El Valle. In my 
collection made in Panama in 1958 numerous specimens of both males 
and females of this last-named species were found also near El Valle. 
One of the females has been selected and is described below in accord 
with my usual procedure. 
Genus Lucarachne Bryant, 1940 
Lucarachne beebei Gertsch 
Female. Total length 2.05 mm. Carapace 1.012 mm. long, .85 mm. 
wide opposite interval between second and third coxae where it is 
widest ; well rounded along margin from opposite posterior eyes to 
posterior border ; gently arched from PE to near posterior border with 
highest part shortly behind those eyes ; with few bristles or hairs. 
Eyes . Eight in two rows. Region of AME considerably raised into 
a low blunt tubercle. Seen from above, posterior row nearly straight, 
anterior row strongly recurved ; seen from in front, anterior row 
slightly procurved, posterior row strongly so, all measured by centers. 
Tublished with the aid of a grant from the Museum of Comparative Zool- 
ogy at Harvard College. 
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