( 540 ) 



and by its lacking the " boMt-sbuped " genitiil (iryaii in the male. To further the 

 iui|niry I a]i]ilied to Mr. Ritseiua of Loydeu for typical specimens of assimilis 

 Tasclibg-., wbicli he most kindly sent me. From the above-mentioned investigations 

 I came to the conclusion that all the insects 1 had examined both from England and 

 the t'outincnt were the same species, namely (iij>frti:s Heller, all of tliem (iiulusive 

 of the specimens from Hitsema) possessing sixteen teeth in the }irouotal comb. 

 The dorsal ninth segments also were identical in all of them. The shape of this 

 organ, however, when dissected out cannot be called " buot-shaped." Dr. Julius 

 Wagner, Ilor. Hoc. F.nt. lioxx. 1898. XXXI. t. 9. f. 25, gives an illustration of the 

 genital armature of what he calls T'/jj/dopsi/llv assimilis Taschbg. This tigure 

 undoubtedly represents an excellent species. It would, however, be interesting to 

 know if this is the real ussimilis or a new species. It seems most probable that 

 the immber of teeth in the pronotal comb of the insect Dr. Taschenberg called 

 assimilia was miscounted. The identity of Dr. Taschcnbcrg's insect, however, 

 must always remain doubtful. 



In North America a closely allied sjjecies is found with fourteen teeth in the 

 pronotal comb, which has hitherto not received a name. This form Mr. Baker 

 considers identical witli Ur. 'i';ischenberg's f^s•,sm//^s■ : vide Canddinn Entomologist 

 XXWiL p. liMi (189.")). 



3. Typhlopsylla dasycnemus (Pi. XVa. fig. 4 c^, o ?). 



T. dasycnemus Rothschild, Km. Hen.nl IX. p. 159 (!8<17) (Triug). 



The front of the head is rounded as in the jireviously mentioned species. The 

 two rows of bristles in front of the antennal groove consist of five and two bristles 

 resjiectively. The small spine-likc! tnbercle is present in this species also. The 

 gena has at its posterior edge four sjiincs which stretch backwards. Near the 

 hinder edge of the head are six bristles. Between this row of bristles and the 

 antennal groove are six or seven more bristles of varying lengths. 



The jironotum bears one series of long hairs only ; at its posterior edge is a 

 comb of sixteen teeth. 



The mesouotum has one row of hairs on it. The ei)isternum ( + cpiuierou) 

 bears eight hairs ; its shape can be best made out from the figure. 



The mctauotum has one distinct row of hairs on it ; several small hairs, how- 

 ever, are scattered over its surface. The episternum is a small plate of a somewhat 

 irregular shape bearing a single hair. The epimeron is shaped as the figure shows: 

 it bears four hairs. 



At the posterior edges of the first six tergites of the abdomen of the mule and 

 the first five of the female there is a small spine jjlaced close to the middle line 

 on each side. At the posterior edge of the seventh tergite there are on each side 

 close to the middle line one long and two short bristles. 



The enlarged eighth sternite in the mede bears about three small and one large 

 bristles. The boomerang-shaped ninth sternite dilfers widely from tlie same organ 

 in T.figyrtes. It is mucli stouter, and bears four hairs. The tibiae, especially of the 

 hindlegs, are very hairy. This, in fact, is one of the most striking characters of the 

 present species. 



Length 2-25— 2-35 mm. 



Hull. Sori'.T V'l-lfiaris, Tring and Hanover; Taipei eurojiuea, Tring. 



Ih. .Jordan discovered this species at Tring last year; since then he has taken a 



