5. sieex. 381 



dish brown beneath ; claws blackish ; abdomen and femora black ; 

 cenchri, hinder portion of the first segment of the abdomen, the 

 whole of the second, a row of spots at the back of the sixth, the 

 seventh and the greater part of the front of the eighth (except a 

 small triangular spot on each side in front ) yellow above ; cornus 

 yellow ; ovipositor black, the neighbourhood of its base yellowish 

 beneath. Wings yellowish hyaline, with yellowish-brown nervuros. 



/fab. Labrador. 

 a. $. (Type.) Labrador. Banksian Collection. 



32. Sirex bizonatus. 



Urocerua flavicornis, Nort. {nee Fabr.) Trans. Amer. lint. Soc. ii. 



p. 362 | I860). 

 Sires bizonatus, st^jili. 111. Brit. Ent., Mand. vii. p. 114, pi. xxxvi. 

 2 I L83i 



Exp. al. 1 poll. 5-8 lin., long. Corp. 1 poll, ad 1 poll. 2 lin. 



Perl ; - variety of the last, but Bmaller and more slender, and 

 appears t" be constant in coloration. Differs in the paler hind 

 . which arc brown only at the tips of the tibiae above and at 

 the daws, and in the colour of tbc abdomen, which is black above, 

 with the second Begment, a narrow border to the first, the seventh. 

 and more or less of the front half of the eighth, luteous above. 



Stephens has well figured the female of this species or variety ; 

 and as it is a well-known insect. I have thought it sufficient to give 

 a comparative description here. 



Hah. North America. 



(Typ< Britain (introduced). .I.K.Stephens. 



N<>. 3 tia. Lieut. Redman. 



\ fa S itia. 

 £. St Martin's Falls, Albany Dr. Barnston. 



Ki\ er, Hudson's Bay. 

 ('ape Krusenstern, Arctic sir J. Richardson. 



Region-. 

 .Mackenzie River. Dr. Rae. 



Fort Churchill, Hudson's Capt. Herd. 



Bay. 

 British Columbia. J. K. Lord, Esq. 



Newfoundland. J. Milne, Esq. 



Newfoundland. 



33. Sirex dimidiatus. 



Sirex dimidiatus, TVestir. The*. Ent. don. p. 115, pi. xxi. fig. 5 

 1-74). 



llab. North America. 



u ^ . North America. 



