110 
Psyche 
[Sept. 
peculiarity is found consistently in other Bahaman speci- 
mens, barhouri may have to be raised to specific rank. 
The unknown male may furnish additional characters. 
Bahamas : Great Inagua, % female holotype, February 26, 
1934 (Utowana Expedition. — M. C. Z. No. 27832). 
Named for the late Dr. Thomas Barbour, in apprecia- 
tion of his lifelong interest in the Antillean fauna. 
5. Pachodynerus alayoi, new species. 
Male . — Similar to P. guadulpensis and P. tibialis, ex- 
cept for the following. Interocellar area deeply grooved, 
with longitudinal swellings near the posterior ocelli; the 
latter slightly farther apart than their distance from the 
eyes. Ridge between antennae low, not carinate. Clypeus 
slightly higher than wide, relatively narrower in upper 
area than in tibialis, the inner orbits being slightly over 
one and one-half times as far apart on the vertex than at 
the narrowest of the clypeus ; surface barely convex, with- 
out median longitudinal humps ; lower free portion much 
shorter than upper interocular part; truncate apex rela- 
tively narrower than in tibialis, less than one-third of the 
greatest width of the clypeus. Mandible as in tibialis, the 
inner margin with the basal tooth low and broad. Thorax 
seen from above scarcely longer than greatest width, 
relatively shorter than in tibialis. Propodeum : superior 
ridge poorly developed, except close to the lateral angle 
where there is a short, low carina; elsewhere the coarse 
sculpture of the dorsal areas extends beyond the ridge 
onto part of the concavity as medium-sized punctures ; 
lateral angle low, blunt. First abdominal tergite not in 
the least angular at the junction of basal slope and hori- 
zontal apical area, as evenly rounded off as in guadulpen- 
sis. 
Head and thorax very coarsely punctate, almost rugoso- 
reticulate, much as in jamaicensis ; but concavity of pro- 
podeum mostly smooth, with a median area of a few, weak 
transverse striae. Clypeus with scattered medium-sized 
punctures, about as in tibialis and jamaicensis. Sculpture 
of abdomen as in tibialis. 
Black, without ferruginous, with the following areas 
yellow: clypeus; most of lower half of face; a broad 
