1967] 
Mockford — Elcctrentomoid Psocids 
155 
with basal rosettes, 4 setae each with a narrow unsculptured ring 
around its socket, and 4 setae with neither basal rosette nor un- 
sculptured ring. 
Color (in alcohol). — Essentially same as in male. 
Type locality. — Ejido Libertad, about 4 miles west of Frontera, 
Tabasco, Mexico, June 27 and July 3, 1966, E. L. Mockford, R. 
Sloan, and A. Manzano collectors. Holotype cf, allotype $, 6 cf 
and 2 9 paratypes and 5 nymphs. Types are at present in author’s 
collection. 
Habitat. — This species was taken on trunks of large trees with 
buttressed bases in lowland rain forest. These insects sit on the 
surface of bark and run rapidly when disturbed. 
Genera Incertae Sedis 
Genus Electrentomum Enderlein 
Electrcntomum Enderlein, 1911. Palaeontographica 58:337. 
Diagnosis. — Antennae of 13 segments. Frontal sutures absent. 
Lacinial tip with lateral cusp curved outward and bearing a few 
indistinct, rounded denticles. Tarsi three-segmented. Pretarsal claws 
each with a single preapical denticle. Pterostigma closed basally. 
Vein 2A of forewing joining vein iA. First segment of Rs in hind- 
wing absent. 
Type species: E. klebsianum Enderlein (Baltic amber). 
Note: Enderlein’s statement (1911:338) “1. Hintertarsenglied 
mit ca. 21 Ctenidiobothrien ” is apparently in error. His figure of 
the posterior tarsus (PI. XXIV, Fig. 75) shows only ordinary bristles 
without basal ctenidia. Compare his figure 52 on the same plate 
showing a psocid with ctendiobothria. 
Explanation of Plate 26 
Fig. 92. — Thylacopsis sp. (Suborder Trogiomorpha) , in-flight wing clasp. 
Fig. 93. — Musapsocus creole, n. sp., 9, in-flight wing clasp. 
Fig. 94. — Protroctopsocus enigmaticus , n. sp., 9, in-flight wing clasp. 
Fig. 95. — Electrentomopsis variegatus , n. sp., $ , in-flight wing clasp. 
Fig. 96. — Pseudoseopsis hellmani Mock, and Gurn., 9, in-flight wing clasp. 
Fig. 97. — Hemipsocus sp. (Suborder Psocomorpha) , in-flight wing clasp. 
Fig. 98. — Electrentomopsis variegatus , n. sp., $, forewing. 
Fig. 99. — E. variegatus , n. sp., $ , hindwing. 
Fig. 100. — E. variegatus, n. sp., $ , phallosome. 
Fig. 101. — E. variegatus, n. sp., 9, subgenital plate. 
Fig. 102. — E. variegatus , n. sp., 9, ovipositor valvulae. 
Fig. 103. — E. variegatus, n. sp., 9 , spermatheca. 
