1967] 
M ockford — - Electrentomoid Psocids 
127 
tinctly constricted in middle forming two regions. Paraproctal sen- 
sorium with 8-9 long setae. 
Color (in alcohol). — Same as in male. 
Variation. — One individual was found with ocelli narrowly 
rimmed with reddish brown — the laterals on mesal margins, and 
the median on dorsal margin. 
Type locality. — Rancho Grande National Park, Venezuela (ele- 
vation 1100 m.), March 5-8, 1959, E. L. Mockford and C. J. 
Rosales collectors. Holotype, cf, allotype $, 7 <$ and 10 9 P ara_ 
types and 2 nymphs. The holotype, allotype, and some paratypes will 
be deposited in the American Museum of Natural History (New 
York City) ; remaining paratypes will be retained in the author’s 
collection. 
Habitat. This insect was taken from dried leaves of Heliconia 
in upland rain forest. 
Musapsocus tabascensis, new species 
Diagnosis. — Vein 2 A in forewing generally joining 1 A, at least 
on one side. Male with pair of papillar fields dorsally on clunium, 
widely separated and bordering posterior clunial margin. Phallosome 
with broad, rounded base. Female subgenital plate with posterior 
margin vaguely trilobed; plate bearing T-shaped sclerite with short 
arms. Third ovipositor valvula with no trace of bilobing. 
Male. — Measurements (Table I). 
Morphology. — Hypandrium with posterior margin thickened and 
bilobed ; short central region reinforced by a ridge. Phallosome 
(fig. 9) with base broad and rounded; posterior branching of para- 
meres resulting in median pair of straight rods, each ending in sac- 
like region, and lateral pair of rods curved out then toward midline 
and crossing before their apices. Clunium with anterior and posterior 
margins thickened; two lateral papillar fields (fig. 23) bordering 
posterior margin. Paraproctal sensorium with 9 true trichobothria 
and a seta without basal rosette. 
Color (in alcohol). — Body and legs generally dull ivory; head 
with slight grayish brown wash. Antennae medium brown. Com- 
Explanation of Plate 18 
Fig. 12. — Musapsocus huastecanus , n. sp., $ , clunial dorsum and epiproct. 
Fig. 13. — M. huastecanus , n. sp., $, ovipositor valvulae. 
Fig. 14. — M. huastecanus, n. sp., $, subgenital plate. 
Fig. 15. — M. creole, n. sp., $ , clunial dorsum and epiproct. 
Fig. 16. — M. creole, n. sp., $, ovipositor valvulae. 
Fig. 17. — M. tabascensis, n. sp., $, hypandrium. 
Fig. 18. — M. tabascensis , n. sp., $, ovipositor valvulae. 
