26 STREPSIPTERA 



ii. X. pecosensis. Pierce. Texas. 



Acroschismus pecosensis. Pierce, Hull. U. S. Nat. Mus. no. 66, p. 12N, 129, 

 pi. 7, ff. 3, 7, 12; pi. 8. It. 1, 4; pi. 9, f. 7 (ly 09 . 



12. X. rubiginosi, Pierce. Louisiana. 



Acroschismus rubiginosi , Pierce, Hull. U. S Nat. Mus. no. 66, p, i32. pi. 9, 



f. 11 (1909). 



1 3. X. texani, Pierce. Texas. 



Acroschismus texani, Pierce, Hull. U. S. Nat. Mus. no. 66, p. i32, pi. 9, 

 f. 9(1909). 



14. X. wheekri, Pierce. Connecticut. 



X. peckii, Brues, Zool. Jahrb. Vol. 18, no 2, ff. B a, C (igo3). 

 Acroschismus wheeleri, Pierce, Bull. U. S. Nat. Mus. no. 66, pp. 129, i3o, 

 pi. 5, ff. S, 9. 12, i3; pi, 9, f. 10 (1909). 



i5. X. vesparum, Rossi, Fauna Etrusca, Mant. App. p. 14 (1790). — PI. I , Italy, Austria. 



Fig. 6; PI. 4, Fig. 24; PI. 5, Figs. 14, 15. 



X. rossii, Kirby, Trans. Linn. Soc Lond. Vol. n, p. Ii6(i8i3). 

 A', vesparum. Pierce, Bull. U. S. Nat. Mus. no 66. pp. 117, 118 ; text fi£. 2, 

 nos. 1 5-ij ; pi. 5, f. 4; pi. 7, ff. 4, 8, i3 (1909). 



2. Genus VESP/EXENOS, Pierce 



Vespsexenos. Pierce, Bull. U. S. Nat. Mus. no. 66, pp. 1 33, 134 (igog). 



Characters. — Male unsatisfactorily described. 

 Female. — Verv large, similar in form to that of Xenos. 

 Triungulinid. — In general similar to that of Xenos. 



Type of genus. — V. crabronis. Pierce. 



Geographical distribution of species. — Parasites of wasps of the genus Vespa. 



1. V. buyssoni, Pierce, Bull. U. S. Nat. Mus. no. 66, pp. 134, 1 35 (igog). Annam. 



Xenos moutoni, Buysson, Rev. Ent. Caen, Vol. 25, p. 11 [1906). 



2. V. cvabronis, Pierce, Bull. U. S Nat. Mus. no. 66, p. 134 (iqog). Japan. 



3. V. moutoni, Buysson. China. 



Xenos moutoni, Buysson, Hull Soc. Ent. Fr. p. 174 (1903). 



V. moutoni. Pierce, Bull. U. S. Nat. Mus. no. 66, p. 1.34 1 1909). 



3. Genus BELONOGASTECHTHRUS, Pierce 



Belonogastechthrus. Pierce, Proc. U. S. Nat. Mus. Vol. 40, p. 408 (ign). 



Characters. — Male unknown. 

 Female. — Very similar in form to Xenos. 

 Triungulinid. — Apically armed with four long stylets. 



Type of genus. — B. zavattarii, Pierce. 



Geographical distribution of species. — Parasites of wasps of the genus Belonogaster. 

 1. B zavattarii, Pierce, Proc. U. S. Nat. Mus. Vol. 40, p. 4g8 (igii). Congo Free State. 



