NO. 1361. REVISION OF AMERICAN SI RIIONARTERA— BAKER. 389 



CERATOPHYLLUS MULTISPINOSUS Baker. 

 Plate XII, lifiH. 1-5. 



Thisflca, from Lep^isforidcmti^ maUvrii.s at Raloig-h, North Carolina, 

 well illustrates some of m}' remarks under the genus. By all the 

 characters which have been used to define the genus this species is a 

 Cera to phy II us., yet I have no hesitation in saying that its strongest 

 affinities are with the other rabbit Heas, (jlae/'a/ix, ajfinis^ inxquaUs., and 

 ft'oriple.v. The heavy posterior legs, the numerous minute teeth on 

 inside of hind coxte and the general hal)itus of the whole insect prove 

 this unmistakably. But the last tarsal joint has five equal spines on 

 either margin, and the prothorax only, possesses a ctenidium, which is 

 unusually well developed. The original description is so incomplete 

 that the species is here redescribed. 



The single type specimen is a male, Avith head flattened above and 

 thickened, and with a distinct frontal notch. The eye is large, rather 

 low down, and not fully pigmented except around the margin. (Jena 

 with two oblique rows of spines, the upper of about six smaller, the 

 lower of three nuich larger spines, the first of the latter being above 

 and in front of the eye. Gena below eye posteriorly acute. First 

 joint of antenna with numerous small ])ristles near the upper extrem- 

 ity, the second bearing about six heavy bristles, which are not as long 

 as third joint. The antennal groove is connected Avith upper margin 

 of head ])y a chitinous thickening. Hind margin of antennal groove 

 sharply prominent l)elow, Avhere there are numerous small l)ristles on 

 the margin; above this the margin is not clearly defined and the min- 

 ute bristles are scattered. Hind margin of vertex, with the usual 

 marginal row of about sixteen bristles, and there are two stout uiuMjual 

 spines at each loAver angle. -Just behind middle of antennal groove 

 there are two small and one large spin(\ Mandibles about ecjualing 

 fore coxa'. The pronotum has two rows of few weak bristles on disk, 

 and on hind margin a row of about forty rather short and slender 

 ctenidial spines, and a long stout spine at extreme lateral angle. The 

 meso- and metanotum have a row of a])out ll-K) larger l)ristles l)ehind 

 and three or four rather irreguhu" rows of numerous minute bristles 

 on disk. Metathoracic scale with three spines near anterior ))order, 

 an irregular row of six stouter ones across middle and oiu' near hind 

 margin. Abdominal tergitcs with one transverse row of about twenty- 

 four large bristles and about two rows each of nunuTous niiiuite bris- 

 tles, though these latter are very irregularly i)laced. There are also 

 two minute median l)lack teeth on first seven tergitcs. and lateral teeth 

 as follows: two on each side of first tAVo segments, and one on each 

 side of next five. On each side there are two antepygidial bristles, 

 one of Avhich exceeds tenth segment and is twice the length of the 

 other. The tenth teririte is covered with a bnisliv mass of bristles, 



