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0. Ceratophyllus eumolpi spec. nov. (PI. VI. fig. 2, 3, 4). 



Head. — The head bears a small frontal tubercle. In front of the tliree eye- 

 bristles there is in the male a further row of four hairs, continued ujjwards at tlio 

 autennal groove by two more bristles. The anterior row is present also in the 

 female, but some of the bristles are much reduced in size. Tiiere are, moreover, 

 several small hairs in front of the eye and along the antennal groove. The occiput 

 bears one bristle behind the base of the antennal groove, and two in the centre. 

 Below this long snbapical ventral bristle there is a rather long hair at the ventral 

 corner of the head. The rostrum reaches beyond the apex of the trochanter, the 

 last segment being twice the length of the last but one. 



Thorax. — The pronotal comb consists of eighteen spines. The small hairs 

 of the pronotal row are posterior in position to the long bristles. The mesonotum 

 bears two rows of bristles, besides numerous small hairs found on the back and 

 halfway down the sides. There are five hair-like subapical spines on each t-ide. 

 The mesothoracical episternum bears numerous small hairs from the upper corner 

 downwards. On the metanotum there are two rows of bristles, and some additional 

 hairs forming an abbreviated third row. There is one apical spine. The meta- 

 thoracical epimerum bears six bristles (2.3.1.), occasionally with a single small 

 hair placed above the basal pair and another behind the stigma. 



Abdomen. — There are two rows of bristles on the tergites, with one or two 

 bristles in front of them, the anterior row not extending down to the stigma on 

 the seventh segment. This segment bears in the male one long apical bristle 

 with a minute hair above and below it, and in the female three bristles of which 

 the lower one is about half the length of the middle one. The first tergite bears 

 one or two apical spines on each side, the second two or three, the third one or two, 

 the fourth one or none. On the basal sternite there are one or two bristles, and 

 towards the base some extremely small hairs. The next four sternites bear in the 

 male two or three, and in the female three or four bristles, besides a number of 

 small hairs before them, these hairs being more numerous in the female than in 

 the male. The seventh sternite bears in the male four bristles, with about four 

 shorter ones in front, while in the female there are five to seven bristles and 

 about twelve shorter ones. On the sternites of segments 3 to 7 there is generally 

 a number of very minute hairs near the upper bristles. 



Legs. — On the outer side of the forefemur there are about ten small hairs. The 

 hindfemur bears, besides the subventral apical bristle, one or two on the outer 

 surface and four on the inner side. The mid- and hindtibiae boar two rows of hairs 

 on the outer side, the hindtibia having on the inner side a row of from seven to nine. 

 The fifth and subapical pairs of dorsal bristles of the hindtibia stand widely separate, 

 with one or two small hairs in between. The midtarsus of the male is characteristic. 

 The first segment, which is a little longer than the second, bears on the hinder side 

 a number of very long thin bristles (PI. VI. fig. 4), the longest apical one reaching 

 beyond the middle of the third segment. The second segment has also some long 

 thin bristles, the longest reaching to the fourth segment. In t\\Q female the bristles 

 are normal. The longest posterior apical bristle of the first hindtarsal segment 

 reaches in both sexes nearly to the apex of the second segment, the longest apical 

 anterior bristle of the second segment extending to the apex of the third. The 

 fourth segment of the hindtarsus is nearly twice as long as it is broad. The first 

 lateral pair of bristles of the fifth tarsal segment is placed somewhat towards the 



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