310 
Psyche 
[Vol. 87 
unity for Sisyra species and approximately two for Climacia. The 
distance between tubercles 2 and 3 is greatest for S’, vicaria (X = 
0.245 mm, N = 47) but less for all the other sisyrid species (range of 
X = 0.065 mm to 0.165 mm). Interestingly, C. striata from Panama 
is not significantly different (X = 0.065 mm, N = 2; t-test, alpha = 
.05) from any other sisyrid species except S. vicaria. 
The pair of mesothoracic and metathoracic tergites on most 
Climacia and Sisyra have four setae each, one minute and sessile 
and three large and situated on tubercles. However, on C. Cali¬ 
fornia and the Baja specimens of Climacia a fifth large seta and 
tubercle have been added to the lateral edge of each tergite (Fig. If, 
seta X). Absence of this feature from any of the other Climacia and 
Sisyra species suggests that the fifth seta represents a derived 
character state. However, until additional larval specimens of these 
and other sisyrid species are collected and studied, nothing more can 
be said about the phylogenetic value of the characters described 
above. 
Climacia striata 
In 1956 when Parfin and Gurney described C. striata from a 
single male specimen, the female was unknown. In 1978 five sisyrid 
cocoons were found on tree stumps protruding from the waters of 
Gatun Lake in Panama. One cocoon yielded a male striata, the 
other three produced striata females. The following is a description 
of the females and the cocoons. 
Previous Records: Pinned male from La Chorrera, Panama, May 
1916, collected by August Busck (Parfin and Gurney, 1956). 
New Record: Panama: Canal Zone, Gatun Lake; 2 $$ and their 
cocoons, from Gigante Bay on stump, 19 June 1978, collected by 
John Wenzel; 1 $, 1 $ and their cocoons, from Juan Gallegos Bay 
on stump, 18 June 1978, collected by John Wenzel. 
The male and two females have been deposited in the Museum of 
Comparative Zoology, Harvard University. One female and cocoon 
is retained in the author’s collection. 
DESCRIPTION OF FEMALE: Head with shiny, dark brown 
vertex, light yellowish-brown area extending from each eye an¬ 
teriorly to antennae, another running transversely toward center of 
vertex along posterior margin of head; brown patch on frons, 
entirely covering clypeus, extending medially to center of face as 
