( 622 ) 



the angle, ami several hairs proximally near the ventral e.lge, as shown in the 

 figure. The .stylet is cylindrical, being about three times us long as broail. 



Ijeugth : cJ, 1 4 ram. ; ?,l-7mru. 



We have 29 s(ieciiuens of this collected i)y Mr. S. M. Klages, 12 ,S tS and 17 ? ?, 

 from La Vuelta, (Janra Hiver, Veneznela, May 17th, 1'.)!);!. On spring rat. 



This species diflers I'rom its allies Fulfx kililsi, etc., in the bristles of the head 

 and legs, the proportional length of the segments of the maxillary palpus, the 

 clasping organs of the S, the eighth tergite of the ?, etc. 



The species is named in hononr of Mr. S. M. Klages. 



\^. Ceratophyllus hilli spec. nov. (PI. XI. fig. 4:?. 44). 



Head. — The front portion of the head bears a row of six fine bristles between 

 the anteunal groove and maxillary palpus. Beneath this row is a number of small 

 hairs irregularly scattered over the sides of the head. Again below this row 

 there are two long bristles, and farther down another pair. The hinder part of 

 the head bears one snbapical and two obliijue lateral rows of bristles. The ventral 

 bristle and the second of the snbapical row are situated widely apart. There is a 

 single bristle and a number of small hairs placed above the antenna! groove. 

 The second segment of the maxillary palpus is as long as the fourth, or a little 

 longer. The rostrum, which is longer in the ? than in the S , reaches beyond the 

 end of the forrcoxa, being in the ? nearly twice the length of the maxillary palpus. 

 The fourth segment of the labial palpus equals the fifth in length, being about as 

 long as the second and third together. 



Thorax. — The pronotum has a comb of seventeen to twenty teeth, and bears 

 two rows of bristles. The mesonotnm has about six rows of bristles, the anterior 

 rows not being regular. Before the apex of the mesonotnm there is one hair-like 

 spine. The mesothoracical epimernm has two vertical rows of three bristles each. 

 The metanotum bears three rows of bristles, and a few additional ones in front. 

 On the metathoracical epimerum there are fourteen to sixteen bristles. 



Abdomen. — The first abdominal tergite bears three rows of bristles and a 

 number of hairs in front, while the tergites 2 to 7 have two rows with a short 

 third row and some additional hairs on the back. The bristles of the seventh 

 tergite of the ? are restricted to the back of the segment, not extending halfway 

 down to the stigma. The seventh tergite bears two heavy long apical bristles 

 on a double cone, the lower one being more than twice the length of the upper 

 one. On the sternite of the first segment there is only one ventral bristle on each 

 side, and no lateral ones : while on the following five sternites there is a ventral 

 (iatch of bristles, of which the posterior ones are loug. The stigmata are pear- 

 shajied. The pygidial plate of the ? is much longer than it is broad in side-view, 

 and raised liehind, projecting backwards. 



Legs. -The hairs of the forecoxa are nuiucrous. The mid- and hindcoxae have 

 a patch of hairs anteriorly on the onterside, and bear j)Osteriorly at the apex two 

 long and one very short hairs. On the forefemur there are several hairs scattered over 

 the onterside, one long one standing ventrally before the apex. The hindfemur bears 

 two or three fine hairs behind the basal ventral incision, and on the onterside three 

 or four hairs ventrally near the apex, the posterior one being the longest. This row 

 is generally continued basad by one or two very short hairs. The foretibia has 

 six pairs of dorsal bristles, the first and fifth being short, and bears two rows of 



