K. Jordan and N. C. Rothschild 67 
in front of the eye and usually another row farther frontad. One or more 
bristles beneath the eye. 
Thorax. Upper edge of prosternum subangulate before middle 
(PI. II, fig. 3). Pronotum with two rows of bristles, meso- and metano- 
tum with three or more rows. Mesonotum without subapical spines. 
Metanotum as well as the anterior abdominal tergites bearing a comb of 
very small teeth at the apical edges. Epimerum of mesothorax more 
or less completely covering the stigma. Episternum of metathorax large, 
more than half the size of the sternum (side-view), bearing two long 
bristles, one at upper margin and one at lower, besides some 
small hairs. Sternum of metathorax with one short bristle. Epimerum 
of metathorax with two rows of bristles, the anterior row being situated 
at some distance from the stigma, while the second row extends from the 
stigma downwards. 
Abdomen. Tergites with at least two rows of bristles, but the 
anterior row sometimes represented by a few dorsal bristles only; seventh 
tergite bearing a long bristle at the apical edge, placed on a cone, the 
edge of the segment being here sinuate, projecting backwards dorsally 
in between the long bristles (PI. VI, fig. 7). Basal sternite in </ and $ 
with small hairs on the side. Stigmata large. Anal segment large, 
especially the sternite. 
Legs. Internal rod-like incrassation of midcoxa dividing about the 
centre, at any rate farther from the base than in Pulex and Loemopsylla. 
No comb on hindcoxa. First segment of fore- and midtarsi shorter than 
the second. Hindfemur bearing at least one row of bristles on the outer 
surface. Fifth tarsal segment (PI. Ill, fig. 10) with 4 lateral bristles 
besides the subapical hair, and with a row of 2 to 4 small hairs on the 
ventral surface. 
Modified segments. </. Clasper large, triangular, bearing a long 
finger-like movable process (PI. VI, fig. 7, F). Ninth sternite boomerang¬ 
shaped, the inner vertical portion extending upwards beyond the 
manubrium of the clasper and being widened at apex.—- $. Eighth 
tergite always with some bristles above the stigma (PI. VII, fig. 10). 
The genus is purely American. It contains at present twelve 
species, one of them (lutzi) being doubtfully distinct from cleophontis. 
5—2 
