108 
Psyche 
[June 
The male of Algoa differs strikingly from all of the foregoing 
by the bispinose armature at the apex of the abdomen,*; which 
recalls that of the otherwise very different Mutillidse. The male 
of Sierolomorpha has no spines that project beyond the tip of the 
abdomen. In Algoa I cannot find the “stylet” described by 
Kieffer for Olixon, which is evidently retracted in my specimen of 
Algoa, although the male of Ampulicimorpha bears a pair of 
spatulate claspers that project bejmnd the tip of the abdomen on 
each side of a median stylet. 
LITERATURE CITED. 
Ashmead, W . H. 
’02 Classification of the Fossorial Predaceous and Parasitic 
Wasps, or the Superfamily Vespoidea. Paper No. 10. 
Canadian Entom., vol. 34, pp. 287-291. 
’03 a Ibid, Paper No. 12, ibid, vol. 35, pp. 39-44. 
’03 b Ibidem, Paper, No. 14, t. c. pp. 115-158. 
Bridwell, J . C. 
’08 Some Remarkable Australian Hymenoptera. Proc. 
Hawaiian Entom. Soc., vol. 2, pp. 27-35. 
Brues, C. T. 
’05 Notes and Description of North American Parasitic 
Hymenoptera. Bull. Wisconsin Nat. Hist. Soc., 
vol. 3, pp. 183-188. 
’10 Some Notes on the Geological History of the Parasitic 
Hymenoptera. Journ. New York. Entom., Soc., 
vol. 18, pp. 1-22, 5 figs. 
’22 The Embolemid Genus Pedinomma in North America. 
Psyche, vol. 29, pp. 6-8. 
Cameron, P. 
’87 Biologia Centrali-Americana, Hymen., vol. 1, p. 412* 
Hood, J . D. 
’13 Notes on the Life History of Rhopalosoma poeyi 
Cresson. Proc. Entom. Soc. Washington, vol. 15, 
pp. 145-147, 1 fig. 
