82 Fleas of Eastern United States 



1919 Stenoponia wetmorei Chapin, Bull. Brooklyn Ent. Soc, 14:52. 

 1929 Stenoponia araericana Jordan, Nov. Zool., 35:176. 

 1937 Stenoponia americana Jordan, Nov. Zool., 40: 285. 



Female. Preantennal region of the head with six bristles, of 

 which three are arranged in an oblique line near the antennal 

 groove, while three are located on the lower gena. Numerous 

 small setae scattered over the frons. Genal ctenidium consisting 

 of about thirteen spines on a side. Genal process wide, rounded 

 distally. Second antennal segment armed with about six 

 bristles, one or two of which are longer than the third antennal 

 segment. Postantennal region of the head armed with about six 

 bristles and a number of small setae (Plate XXV, fig. 132) . 

 Pronotum with a ctenidium of twenty-five or twenty-six spines 

 on a side. Anterior to the ctenidium are about four rows of 

 bristles. Meso- and metanotum each with four or five rows of 

 bristles. Each abdominal tergite armed with about three rows 

 of bristles. First abdominal tergite with a ctenidium of about 

 twenty-one spines on a side. Abdominal tergites II to IV each 

 with a series of short stout teeth. The number of teeth in each 

 series is variable; usually tergite V bears the fewest teeth. Five 

 antepygidial bristles present on a side. Bristles on the posterior 

 margin of the tibia very long and heavily pigmented. Seventh 

 sternite divided by a deep but narrow sinus into two lobes. The 

 lower of these lobes tapers to a long point while the other is 

 wider and rounded. Head of the receptaculum seminis spheri- 

 cal; tail very long. For further details concerning the structure 

 of the female genitalia, see Plate XXV, fig. 130. 



Male. General structure essentially as in the female except 

 that four antepygidial bristles are present on a side. Modified 

 segments: Process of the clasper broad and lobular with a 

 number of slender bristles distally. Movable finger curved, ex- 

 tending slightly more distad than the process, armed with a 

 number of small bristles. Manubrium curved, not long. Penis 

 bladelike, its spring not completing a single turn. Posterior arm 

 of sternite IX expanded distally and armed with numerous 

 slender bristles. For further details concerning the structure of 

 the male genitalia, see Plate XXV, fig. 128. 



Records. ALABAMA — Dale County, April 4, 1937, on "cot- 

 ton mouse," male (R. E. Dyer). FLORIDA — Tallahassee, 

 January 15, 1938, on same host, female (B. V. Travis) . IOWA— 

 Dubuque, November 4, 1937, on Peromyscus leucopus nove- 

 boracensis (Fischer), female; Eldon, November 12. 1937, on 

 Sciurus carolinensis leucotis (Gapper) , male, two females; 



