( I'-n ) 



mesouotnm 1ms two rows of bristles aiul, at the base, two irregular rows of very 

 short hairs, the back being provided, moreover, with a number of short hairs 

 from the base to the iirst row of bristles. There are five or six long thin subajiical 

 spiues on each side. The metanotum bears two rows of bristles, and dorsally in 

 front of them two or three additional hairs. It has one spine at the ape.x. The 

 episternum of the metathorax bears two or three bristles and the sternum one 

 or two, while there are three or tive iiristles on the epimcrum (1.1.1., or 

 2.:.'.].). 



Abdomen. — The abdominal tergites have each two rows of bristles, the 

 anterior row of the fifth and sixth segments not containing more than six bristles 

 on the two sides together. The first three tergites bear each one apical s])ine, 

 the second having sometimes two. There is one long apical bristle on the seventh 

 tergite, accomjianied by two short hairs. The first sternite bears one hair on each 

 side, while the sternites of segments 3 to 7 have three. 



Legs. — The hindfemnr bears on the inner side a row of about eight hairs. The 

 hindtibiae have on the outer side one row of hairs, and several additional hairs 

 between this row and the dorsal edge. The longer bristles of the second, iifth and 

 last dorsal pairs of hairs of the hindtibiae are long, while all the other dorsal 

 bristles are short. There are very few hairs on the ventral side of the tarsi. The 

 first hindtarsal segment is very long, being about two-thirds the length of the 

 hiudtibia. Its bristles arc short, except one of the penultimate posterior pair 

 and the posterior apical one, the latter reaching to the apex of the fourth segment. 

 The corresponding bristles of the second segment are also long, the apical one 

 reaching to the middle of the fifth segment, the apical bristle on the anterior side 

 of the segment being nearly the same length. The bristles of the fifth segment 

 are all lateral, the third ]]air being, however, soro.ewhat dislocated towards the 

 middle, as is the case in most species. The measurements of the mid- and hind- 

 tarsi are as follows : — 



Modified Segments. — d. The eighth tergite is broadly emarginate distally, 

 bearing four or rive bristles near the ujjper angle and five or six near the ventral 

 angle. The eighth sternite is rather large and bears a patch of hairs at the apex. 

 The process of the clasper (PI. IX. fig. 34, p) is rounded, bearing a few hairs 

 at the apex and two bristles at the juncture with the finger. The latter is 

 rounded, club-shaped, bearing one long bristle at the distal edge near the apex 

 and five shorter ones, as shown in the figure (I'l. IX. fig. 34, f). The ninth 

 sternite (ix. st.) bears on each side two long broad sabre-shaped bristles proximally 

 of the sinus, besides some small hairs. 



Length : cj, 2o mm. 



We have six specimens of tliis sjjecies, colloi'ted by Mr. G. F. l)ij)pie, as 

 follows : — 



3 cJcJ, Hed Deer, Alberta, Canada, April 20th, luul. Siwrmopldlus IJ-liiicatas. 



^66, „ „ „ May Uth, „ „ „ 



