( 05 ) 



li. Ceratophyllus dauubiauus sine. imv. (I'l. X. H^. 5). 



Both sexes closely resemble ('. tcs<iiwram VVu^'ii. (IS'JN); distinguishable ty 

 the somewhat more numerous bristles and by the genitalia of the S. 



(?. The eighth abdominal tergite bears a lateral row of 11 to 13 bristles and 

 an ajiical row of to 13. The eighth sternite (PI. X. fig. 5, viii. st.) bears 3 pairs 

 of bri.stles ventrally near the ai)ex. The clasper resembles that of C. teaqnonun, 

 but the movable iirocess (f, PI. X. tig. 5) is broader proximally, and bears 1 long 

 bristle instead of 2 short ones as iu C. tesqnortun. 



?. Exactly like G. tesjuorum, except that the abdomiual segments bear one or 

 two more bristles and that the fifth tarsal segment lias one or two short spine-liki' 

 bristles ventrally in front of the two apical spine-like bristles. 



We have a series of both sexes from Malcoci, Roumania, olf Spcnii'ijiliilux 

 citi/Uiis, collected by A. Rettig in Blarch I'.MiS. This insect is apparently the 

 western representative of C. h'squoruiu. 



Caenopsylla gen. nov. 



S ?. This new genus sliows affinities on the one hand to Ceratopln/llus and 

 on the other t(j Cti'i/o//tii///us. 



Frons strongly curved, especially in the 6 , with a tubercle (PI. XI. figs. 9, 11). 

 Eye present, bnt not fully developed. Genal process with two spines. Antenna 

 and antennal groove as in CrratnjiIiifUus. Pronotum much wider above than at 

 the sides, with a comb of curiously deflected sjtines. Mesonotum with setiform 

 spines between the postmedian series of bristles and the apical margin. Metanotum 

 with some short apical spines, similar spines being present on the tliree anterior 

 tergites of the abdomen. Tlie internal incrassation at the anterior edge of the 

 metasternite narrow, being longer than it is broad. The tibiae resemble those of 

 Cfenojisi/llus in the exterior dorsal bristles being numerous and forming a kind 

 of comb, although these bristles are not of such even length as in Ctenopsi/llus ; 

 the hindtiljia bears only 3 long dorsal bristles, the first being j)laced in the second 

 notch, the second in the centre; and the third near the apex. The fifth hindtarsal 

 segment has 5 lateral bristles, of which the first is very slightly bent inward. 



Type : Cacnoptii/lla mira spec. nov. 



7. Caenopsylla mira spec. nov. (PI. XI. figs. 9, 11, 12). 



Ikail. — The frons bears a row of 2 or 3 bristles at some distance from the eye, 

 and further forward a row of 4 or 5 smaller ones (PI. XL figs. 9, 11). The two spines 

 situated at the apex of the genal process are narrow and directed backwards. The 

 frons is very much more curved iu the 6 than in the ?,its outline almost resembling 

 in the S that of Ctenopsj/llus nuisculi. The occiput has 1 bristle behind the base of 

 the antenna, 1 or 2 in the centre, and a row of .J or near the apex. The antennal 

 groove extends to the vertex in the 6 , while it does not extend so far ui)wards iu 

 the ? , there being in this sex also no internal incrassation from the base of the 

 groove to the vertex. The first segment of the antenna is long in the S. The 

 second segment bears a few very short bristles at the apex in both sexes. 



Thorax. — The pronotum has a comb of 14 sjiines and one row of bristles 

 (I'l. XI. fig. 9). The mesonotum has two rows of bristles and a number of additional 

 liairs on tbe back, which are particularly numerous at the base. The mesosternite 

 has 9 bristles. The metepisternum bears 2 or 3 bristles and the epimernm (J or 7 



j 



