^[r. 11. E. Turner oii Fossorial Ilymcnoptcra. 537 



base, and without erect hairs ; ventral scopa short and com- 

 pact, pure white, hhick on hist scf^mciit. 



Hub. Trinity, Texas, Aug. 30, I'JOG, two (/''. C. Bishopp). 

 U.S. National iMuscum. 



M. occidental'is, Fox, has the mesothorax much more 

 finely punctured, and the last dorsal segment with a deep 

 transverse suhapical groove, represented only hy a transverse 

 depression in penidUuta. 



Bombus 7-ufocliiclus, var. castoris, v. n. 



Binnbus rufocinclus, Cres-!., var. G, Fnuikliu, Trims. Aiiior. Eiit. Soc. 

 -wxviii. p. 443. 



c?. — Abtlomen with yellowish-fulvous hair on first two 

 dorsal segments, bhick on all the others. 



Hub. Beaver Creek, :Montana, G3U0 I't., Aug. 1913 {S. J. 

 Hunter). The abdomen is coloured as in the male of 

 B. vayans, Smith. There is much yellow hair on the head 

 above, and a large yellow patcli in the middle of the face. 



XLVIII. — Notts on Fossorial Ilymenoptera. — XVI. 

 13y IvowLAND K. Turner, i''.Z.S., F.E.iS. 



On the Thynnidae, Scoliida?, and Crabrouidjie of Tasmania. 



The follo\\ii)g list includes all the known species of 

 Tliynnidse, iSculiida?, and Crabronidai occurring in Tasmania. 

 1 have alre.uiy published notes on the jMutillidio of the island 

 (Ami. & Mag. iSat. Hist. (8) xiv. i)p. 4:21J-±.30), and hope at 

 a future date to give a list of the I'samniocharida?. 1 have 

 not included the few species known from the islands in 

 Bass Straits, which are politically part of Tasmania. Tlie 

 tossorial Hymenoptera are not very numerous in Tasmania, 

 and a considerable number are common to Australia iind 

 Ta.sniania, the ri'sembhiiice to the fauna of the mountiiinous 

 districts of IS.E. Au-Stralia being very nuuked. The absence 

 of the conspicuous coloration of broad orange bands, so 

 characteristic of Australia, is remarkable; I am not aware 

 that this plan of colour occurs among the wasps of Tasmania, 

 except in one or two strong-Hying Bsammocliaridnj which 

 have doubtless found their way across Irom the mainland. 

 In one case, Cruhro Iridentatus, !Sm., which occurs in 

 Victoria, has broad orange bands on the abdomen; the 

 Tasmanian form, C tasnianicus, ISni., has narrow yellow 

 b:ind.s, but does not ditler appreciably in structure. 



