692 Hymenoptera in America North of Mexico 



Type-species: Peucobius fulvus Townes. Orig. desig. 



This genus is not known to occur outside the Nearctic Region. 



fulvus Townes. Md., w. N. C, Mich. Ecology: The holotype and six paratypes were collected in 

 Md. in late April; they were swept from branches of Pinus virginiana bearing 

 staminate cones which had not yet shed their pollen. 

 Peucobius fulvus Townes, 1971. Amer. Ent. Inst., Mem. 17: 30. 6, 9. 



piceus Townes. N. Mex., n. Utah, e. Calif. Ecology: Three paratypes from Utah were collected 

 on June 19 at an elevation of 8000 ft.; they were swept from branches of Pinus contorta 

 bearing staminate cones which had not shed their pollen. The significance of the latter 

 circumstance seems obscured by the fact that a paratype from Cloudcroft, N. Mex. was 

 collected on August 28, certainly well after the pines there had shed their pollen. 

 Peucobius piceus Townes, 1971. Amer. Ent. Inst., Mem. 17: 30. 6, 9. 



Subfamily TERSILOCHINAE 



This is a small subfamily including 15 described genera, ten of which are represented by 

 Nearctic species. Most of the species are apparently internal larval parasites of Coleoptera. 

 However, one Nearctic species of an undescribed genus has been reared from the eriocraniid 

 microlepidopteran Dyseriocrania griseocapitella (Wlshm.), and at least several species of the 

 genus Allophroides have been reared from sawflies of the genus Xyela. Perhaps the systematic 

 position of the hosts is not so important as the fact that all or most of them construct pupal cells, 

 cases, or cocoons in the soil. 



Taxonomy: Townes, 1971. Amer. Ent. Inst, Mem. 17: 33-49 (genera of world). 



Genus ALLOPHROIDES Horstmann 



Allophroides Horstmann, 1971. Zool. Staatssamml. Muenchen, Veroeffentl. 15: 52. 

 Type-species: Porizon boops Gravenhorst. Orig. desig. 



This is a Holarctic genus of moderate size. None of the Nearctic species have been described. 

 Labels on specimens in the U. S. Natl. Museum collection and unpublished rearing notes of R. A. 

 Cushman indicate that at least several Nearctic species have been reared from larvae of Xyela. 

 Some of these species do not agree very well with the generic redefinition of Townes (1971), 

 particularly with respect to the position of the glymma on the first tergite. Apparently, the 

 limits of the genus will either have to be greatly broadened or significantly restricted. 



Genus PROBLES Foerster 



Probles Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 147. 



Type-species: Probles melanarius Szepligeti. By subsequent monotypy from 

 inclusion by Szepligeti, 1899. The type-species is regarded as a synonym of P. 

 erythrostovuis (Gravenhorst). 



This is a moderately large genus; according to Townes (1971) its distribution is worldwide. 

 Horstmann (1971) recognized three subgenera in his treatment of the European species. 



Revision: Horstmann, 1971. Zool. Staatssamml. Muenchen, Veroeffentl. 15: 81-97 (European 

 spp.). 



Taxonomy: Townes, 1971. Amer. Ent. Inst., Mem. 17: 37-38. 

 maturus (Provancher). Que., Wyo. 



Thersilochus maturus Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 92. 9. 



Taxonomy: Townes, 1971. Amer. Ent. Inst, Mem. 17: 38. 



Genus BARYCNEMIS Foerster 



Barycnemis Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 147. 



Type-species: Porizon claviveyitris Gravenhorst. By subsequent monotypy from 

 inclusion by Brischke, 1880. 

 Leptopygus Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 148. 



