. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. banks: south American psammocharidae 489 Calopompilus EREBUS spcc. nov. Male. Black throughout; the wings evenly, but not deep black; the abdomen shows a purple sheen. Clypeus hairy all over, rest of head, including basal joint of antennae, densely black-haired; also on pronotum; on mesonotum much shorter; propodeum with long but hardly dense hairs; all coxae densely long haired, and there are numerous hairs on the femora; base of abdomen with some very short fine hairs, much longer ones on sides, tip with only a few
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. banks: south American psammocharidae 489 Calopompilus EREBUS spcc. nov. Male. Black throughout; the wings evenly, but not deep black; the abdomen shows a purple sheen. Clypeus hairy all over, rest of head, including basal joint of antennae, densely black-haired; also on pronotum; on mesonotum much shorter; propodeum with long but hardly dense hairs; all coxae densely long haired, and there are numerous hairs on the femora; base of abdomen with some very short fine hairs, much longer ones on sides, tip with only a few short hairs; venter with hair on all segments except Text fig. 2. Outer claw of front tarsus. Clypeus much narrowed below, margin scarcely concave; face much widened above, vertex-width about equal to second plus third plus fourth antennal joints; ocelli in a broad low triangle, laterals much nearer each other than to eyes; antennae about as long as fore wing, beyond middle the joints are a little convex below, and concave above. Pronotum behind strongly arcuate, almost angulate; propodeum, from side, evenly curved, very finely striate, scarcely noticeable; abdomen somewhat constricted at base of the second segment. In fore wings the marginal cell does not narrow much except on the last abscissa, second and third submarginals much as in C. edmondii the third but little longer than second, end of third sloping strongly at first then curving down to medius, not recurving; first recurrent ends a little before apical third of second submarginal cell, second recurrent (faintly curved) ends a little before middle of third sub- marginal cell. Length of fore wing mm. One from San Ignacio, Argentine, 15 March (Joergensen collector). Type M. C. Z. no. 26629. It agrees with C. constrictus in color and the constriction of abdomen, but this latter point is common to males of other species; it differs in many points of structure, venation, and especially in the very hairy
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