Vol. Xxii] ENTOMOLOGICAL NEWS. 347 



The Probable Occurrence of the Mymarid Genus 

 Dicopus Knock in North America (Hymen.). 



By a. a. Girault, Brisbane, Queensland, Australia. 



Several weeks ago, Dr. C. Gordon Hewitt, Dominion Ento- 

 mologist, Ottawa, Canada, turned over to me for identification 

 a number of slide-mounted parasitic Hymenoptera obtained 

 from spruce budworm rearing material, among which I found 

 a single mymarid so minute as almost to be lost in the medium in 

 which it was mounted. Casually, I placed it at once as an 

 Alaptus but more leisurely examination showed that it differed 

 from that genus in having two more segments in the antennae. 

 This being the case, the species could not be placed into any of 

 the genera of the Gonatocerinse, since there are none in that 

 sub-family which bear twelve-jointed antennae in the males. 

 There is an English genus, however, recently described by 

 Enock for Dicopus mimitissima Enock, which closely resem- 

 bles Alaptus Haliday in form, but which differs in bearing two 

 more antennal segments ; the male of this genus is unknown. 

 Now, this Canadian species precluded from being an Alaptus 

 must belong to Dicopus, at least until we know to the contrary. 

 It is one of the smallest North American Mymaridse and be- 

 cause of this and also because of its characteristic appearance. 

 I believe it incumbent on me to describe it rather than risk its 

 being lost. It can be easily recognized ; thus, it is an Alaptus 

 male with two more segments in the antennae, the antennal 

 funicle peculiar because of the abrupt narrowing of the second 

 joint and the fore wings more or less characteristic by reason 

 of their comparatively abundant discal ciliation. I describe the 

 species in detail herewith. 



Family Mymaridae, Subfamily Gonatocerinae, Tribe Gonatocerini, Ge- 

 nus Dicopus Enock. 



1. Dicopus heditus new species. 

 Normal position. 



Male. — Length, 0.23 mm. Very minute, barely visible to the naked 

 eye as a fleck of dust. Abdomen sessile; tarsi 5-jointed. 



General color sooty black, all of the legs and the whole of the an- 

 tennas pallid yellowish ; wings very slightly clouded throughout, the 



