1967] 
Mockford — Electrentomoid Psocids 
129 
fused region showing partial fusion line; posterior branching of 
parameres resulting in pair of median, straight arms each terminating 
in sac-like region and pair of lateral arms strongly curving out then 
toward midline where tips cross; each arm bifid near its tip. Clunium 
(fig. 19) with margins only slightly and irregularly thickened; two 
lateral fields of small papillae near anterior clunial margin; compact, 
round field of large papillae in middle, and compact field on posterior 
margin along midline. Paraproctal sensorium with 6-7 trichobothria 
and one seta without basal rosette located centrally in field. 
Color (in alcohol). — Head and antennae straw brown; thorax 
and legs dull ivory yellow ; abdomen dull white except clunium straw 
brown. Compound eyes black. Reddish brown pigment distributed 
as follows: median rims of lateral ocelli and dorsal rim of median 
ocellus, irregular pale blotches on sides of thorax, a transverse band 
on each of preclunial terga 2 to 7. 
Type locality. — Cartago, 5 Km. southeast of Turialba, Costa 
Rica, August 24, 1963, D. E. Birkenholz collector. Holotype d". 
The type is in the author’s collection. 
Musapsocus simlae, new species (9) 
Diagnosis. — Both forewings of single specimen with 2 A joining 
1 A. First ovipositor valvula bearing a rounded appendage at its base; 
third valvula with no trace of bilobing. Subgenital plate lacking 
T-shaped sclerite. 
Female. — Measurements (Table 1). 
Morphology. — Subgenital plate (fig. 21) with posterior margin 
deeply bilobed, bearing 13 strong setae; cleft interior plate present. 
Ovipositor valvulae (fig. 20) : first valvula with basal appendages 
abutting on sclerite of spermathecal opening; second and third 
valvulae clearly fused for most of their length; third valvula rounded 
apically. Paraproctal sensorium with 10 trichobothria and a seta 
without basal rosette. 
Color (in alcohol). — Head, thorax, and appendages generally dull 
ivory yellow. Abdomen dull white. Compound eyes black. Reddish 
brown pigment distributed as follows: scattered granules on genae 
and thoracic pleura, a diffuse spot on each side of each preclunial 
abdominal segment, a narrow band dorsally across base of abdomen, 
a broad diffuse band across fourth abdominal tergum. 
Type locality. — Simla near Arima, Trinidad, W.I., August 30, 
1961, E. L. Mockford collector. Holotype 9- The type is in the 
author’s collection. 
