1965] 
W erner — Ischyropalpus 
203 
Ischyropalpus freyi, new species 
Very similar to eryngii, differing, in the eyes being even larger, the 
base of the head short and gently, evenly curved behind them, the 
punctures, of the head especially, smaller and the intervals wider. 
Elytral pubescence quite sparse, of uniform tan color. 
Holotype Length 2.79 mm. Head 0.46 mm long to the extreme- 
ly feebly indicated frontoclypeal suture, 0.54 to apex of clypeus, 0.56 
wide across eyes, 0.46 just behind. Base very short, almost evenly 
and gradually curved, the tempora very short and nearly obsolete ; a 
line between the hind margins of the eyes is 0.13 mm from middle of 
base. Disc slightly flattened. Surface smooth and shiny, with quite 
small flat-bottomed punctures ca. 0.03 mm from center to center, the 
intervals flat, and as wide as punctures in most cases. Setae appressed, 
0.04 mm long, tactile setae erect, straight, 0.04 mm. Clypeus on same 
curve as front and similarly sculptured. Last segment of maxillary 
palpi narrowly securiform 0.15 X 0.08 mm. Eyes very large, promin- 
ent, moderately coarsely faceted, separated by 0.36 mm and covering 
most of sides of head, with curved setae ca. 0.01 mm long at the inter- 
vals of the facets. Antennae similar to eryngii, bright rufescent at base, 
gradually darker beyond segment 6. Measurements in 0.01 mm: 14/8, 
8/5) 9/5, 8/6, 9/6, 9/6, 9/6, 8/8, 9/9, 8/9, 15/8. Pronotu-m similar 
to eryngii, 0.64 mm long, 0.38 wide at base, 0.52 maximum and 0.22 
at collar. Punctures denser than on head but of similar diameter, 
separated by less than their diamaters in most cases, slightly oval longi- 
tudinally but not at all confluent. Elytra also very similar to eryngii 
except for the unicolorous pubescence, which is nearly longitudinal in 
the region of the omoplates; length 1.69 mm, width at humeri 0.68, 
0.83 maximum. Punctures ca. 0.04 mm from center to center; setae 
EXPLANATION OF PLATE 14 
Fig. 1. Ventral view of mesothorax and part of metathorax of Ischyropal- 
pus caesiosignatus (Boheman). 
Fig. 2. Ventral view of aedeagus of Isychyropalpus tibialis, new species, 
paratype, Maracay, Venezuela. 
Fig. 3. Ventral and left lateral views of aedeagus of Ischyropalpus 
eryngii, new species, paratype, Maldonado, Uruguay. 
Fig. 4. Ventral and left lateral views of aedeagus and of penis or median 
lobe of Ischyropalpus puteifer , new species, Mojon de Fierro, Argentina. 
Figs. 5-7. Details of Ischyropalpus puteifer, new species, holotype $. Fig. 
5. Left maxillary palpus. Fig. 6. Left front femur in ventral view. Fig. 7. 
Left hind femur in ventral view. 
Fig. 8. Ischyropalpus puteifer new species, holotype $ (X 11). All 
other figures at scale indicated. 
