iClIjSiEUMONlN.E IN THE BlltTISH MUSEUM. 165 



As a niattev of fact there appears to be but a single foundation 

 which consists solely of the simple mandibles, ending in a single 

 point or tooth in place of the bidentate apex usual in Ichiieu- 

 monidee, to distinguish this group from the Oxypygini; and I do 

 not find that Ashniead's characters (Proc. U.S. Nation. Mus. 

 1900, p. 12), "Head, ^'ie\ved from in front, broader than long ; 

 occiput strongly concave, the temples broad, full," no repetition 

 of which is made at lib. cit. p. 20, are constant. At all events 

 the following genera all have the face longer than broad and 

 bear facies of Oxypygini, usually with the remote hypopygium of 

 that subtribe. Some local cause for which we are at present 

 unable to account — not improbably peculiar ease of emergence 

 from the host-pupa — has eradicated the lower mandible, and on 

 that account thrown these genera in a sufficiently convenient 

 group, difiei'ing in nothing but the mandibular stractui'e fi'om 

 Amblypygini and Oxypygini*. In all other respects Myermo, 

 ChicKjlas, etc., might be considered true S'ienic/meumon-s\iecies, 

 while Fileanta ruficcmda Cam., from India, is almost a true 

 A'mhly teles pcdliatorius Grav., from Europe. 



IS^either Wesmael nor Berthoumieu recognized the present 

 Subtribe; but Schmiedeknecht in 1902 adds to the already 

 known four genera Myermo^ Fileanta and Setanta from India, of 

 which I have shown (ef. Amhlyteles supra) the last to be a mere 

 synonym. 



List of Heresiarchid Genera. 



Stenodontus Bortliouinien, Ann. Soe. I'hitoui. Franco, Ixv. 1896, \>. Zi%= Gnat- 



Jio.rif/! Wesmael, Nouv. Mcni. Acad. Bvux. xviii. 1844, p. 165 (nee Westw. 



1842). — Europa, Africa bor. 

 Heeesiaeches Wesmael, Mem. couron. Acad. Belg. viii. 1859, p. 93. — Europa. 

 Rhexidermds For.ster, Vevli. preuss. Rlieinl. xxv. 1868, p. 192 {xpecies e.vstat.). — 



Enropa . 

 Plagiotisypes Ashmead, Proc. U.S. Nation. Mus. xxiii. 1900, p. 20. — Amer. bor. 

 Gteodonta Cameron, Ann. Nat. Hist. vii. 1901, p. 485. — India. 

 Filea:\ta Cameron, Ann. Nat. Hist. vii. 1901, p. 525. — Iiidin. 

 Mteumo Cameron, Ann. Nat. Hist. vii. 1901, p. 523. — India, lh;rma. 

 MiojoPPA Cameron, Zeitschr. Hymen, n. Dipt. ii. 1902, p. 391. — -India. 

 AiGATHiA Cameron, Zeitsclir. Hymen, u. Dipt. ii. 1902, p. 392. — India, Burma. 

 Chiaglas Cameron, Ann. Nat. Hist. ix. 1902, p. 152 et 1. c. xx. 1907, p. 81.— India. 

 Njsnaria Cameron, Ann. Nat. Hist. xi. 1903, p. 313. — India. 

 Caspipina Cameron, Trans. Entoni. Soc. Lond. 1903, p. 219. — Assam. 

 Teiptognatiius Berthoumieu, Genera Insect, xviii. 1904, p. 49. 

 Maceophatnus Cameron, Rec. Albany Mus. i. 1905, p. 232 et Ann. S. African 



Mus. V. 1906, p. 175. 

 RossELLA Cameron, Ann. Soutli African Museum, v. 1906, p. 176. — Africa mer. 

 AiLONOTOS Cameron, Ann. Nat. Hist. xx. 1907, p. 29. — Borneo. 

 Oethognathella Szopligeti, Faun. S.W. Australiens, i., ix. 1908, p. 320.— 



Australia. 

 HEEESiAEcnoiDES Bretlies, Ann. Mus. Buenos Aires, xix. 1909, p. 51. — ^Argentir.a. 



* In the European fauna, such tbijigs as Iclinevwon rniidens Wesm. iind 

 Amhlyteles iniiffuffatus Grav., fall into tlic prtsent category. 



