( ^^^' ) 



Wo have two c? c? rolloetod liy IMr. G. F. Dippie, ns follows : — 



1 S, Kicking Horse Caiivdn, V>. ('., October 1st, 1903. Efotomi/.'i ffftpperi. 



\ (J, ,, ,, „ „ 5th, „ Soir.r- richardufwi. 



Ceratophyllus poeantis 



spec. UOV 



(PI. VII. figs. 22, 23). 



This species is allied to C. pro.rinmx Baker, of which onl\- /ewr/i'e.s are known. 

 It differs in that sex (according to Baker's fig-nre and a cotype) in having the last 

 segment of the rostrnm longer than the preceding one, and in the second hair of the 

 snhapical row of the occipnt being nearer to the dorsa! edge of the head tlian to 

 the long ventral bristle. Farther, the row of three or fonr hairs on the onter side 

 of the hindfemur of C. poeantis stands widely apart from the snbventral aj>ical hair. 

 Other slight differences between these two insects also exist. 



Head. — There is a distinct frontal notch. Of the three eye-bristles the second 

 is the .smallest, standing close to the npper one, bnt placed a little in front of it. 

 The anterior row of bristles is represented by one bristle at the ventral edge behind 

 the palpi, another two-thirds the way towards the antennal groove, and a third 

 smaller one farther back, the last two being generally absent from the ? . The inter- 

 space between the long subapical ventral bristle of the hinder part of the head and 

 the second bristle is very large, the second bristle standing much nearer the dorsal 

 edge than the ventral corner, being, in fact, homologous to the third bristle of 

 proximus, the true second bristle being absent from poeantis. The rostrum reaches 

 beyond the trochanter, the fifth segment being longer than the fourth. 



Thorax. — The pronotal comb consists of from eighteen to twenty spines. The 

 mesonotnm possesses in the S three or four irregular rows of very short hairs at 

 the base, while the ? has two almost regular rows of similar hairs. There are six 

 thin, long, subapical spines on each side. The mesotboracical episternum bears one 

 long and several small hairs. On the metanotum there are two to four apical spines 

 on the two sides together. The metathoracical episternum bears three bristles, the 

 sternum one, and the epimerum four (1.2.1.). 



Abdomen. — There are two rows of bristles on all the tergites, and segments 1 

 to 4 bear, moreover, two apical spines on each side. The seventh tergite bears 

 one long apical bristle in the cJ, with a short one above it, and in the ? three 

 bristles, of which the ventral one is at least two-thirds the length of the middle one. 

 There is occasionally a fonrth bristle above and a fifth below the three, these 

 additional ones not standing on cones. The sternites of segments 3 to 7 bear 

 in the 6 three or fonr long bristles, with a few shorter ones in front, while in 

 the ? there are four to six bristles on segments 3 to 6, and seven or eight on 

 segment 7, with numerous small ones situated before them. 



Legs. — The legs are as in proximus. The hindfemur, however, possesses on 

 the outer side a row of three or four bristles from the base to the middle, there being 

 a wide interspace between the last bristle of this row and the ventral subapical 

 bristle. The hindtibia has one lateral row of bristles standing near the dorsal pairs. 

 The measurements of the mid- and hindtarsi are as follows : — 



