32 ENTOMOLOGICAL SOCIETY 



Lcesthia vespertina HaL, Ent. Mag., i, p. 335 (1833) $ 9. 



Epimacrus rufus Walk., Ent. Mag., i, p. 369 (1833) 9- 



Sciatheras trichotus Ratzb., Ichn. der. Forstins., ii, Bd. p. 209, 

 (1848) 9 alata. 



Notwithstanding this, Thomson, in his Skandinaviens Hymen- 

 optera, vol. iv, p. 207 (1875), gives a table of the Spalangiina, 

 based entirely on the color, the absence or presence of wings, 

 and the smoothness of the mesonotum, in which he again sepa 

 rates Theocolax from Cerocephala and also recognizes the genus 

 Tricoryphus Forster, as belonging to the group which was 

 originally placed by Forster in his family Cteonymotdce. In my 

 studies in the group, I am convinced that color, punctuation, and 

 the absence of wings are of no generic value, and I have united 

 all of these genera under the older name Cerocephala. 



The three species in our fauna may be separated as follows : 



TABLE OF SPECIES. 



Wingless or with rudimentary wings, 2 



Winged. 



Pale brown disk of mesonotum and scutellum metallic brown. 



Abdomen bronzy black ; head and prothorax with iridescent reflec 

 tions ; wings hyaline with a broad brown band beyond the 

 middle. 9 Length, i mm., .... C. fityophthori, sp. n. 

 Reddish-yellow or honey-yellow. (J with a brownish metallic blotch 

 across mesonotum and scutellum. 



Abdomen in 9 with the apical half metallic brown, in ^ with a 

 brownish transverse band. 



Wings hyaline in $ with a slight brownish blotch below 

 the stigmal vein; in 9 with a larger discal blotch and a 

 slight brownish streak below the juncture of the sub- 

 marginal with the marginal. Length, 1.5 to mm., 



C. scolytivora, sp. n. 

 2. Metallic brownish red; mesothorax broad, longitudinally aciculated. 



Length, 2 mm., C. canadensis, Prov. 



C. pityophthori, sp. n. 



9- Length, i mm. Pale brown, polished, impunctured ; the disk of 

 mesothorax and the scutellum metallic brown ; the abdomen bronzy 

 black; the head and prothorax with iridescent reflections; the tip of the 

 antennae black; ovipositor not quite half the length of the abdomen; the 

 legs pale brownish-yellow, the posterior femora sometimes metallic. 



Antennae 9-jointed, clavate, moniliform, the pedicel longer than the first 

 funicle joint; club large, usually inarticulate, but sometimes with one or 

 two indistinct sutures. Wings hyaline with a broad brown band beyond 

 the middle ; the marginal vein is longer than the submarginal, the stigmal 

 and postmarginal veins very short. 

 Hab. Haw Creek, Florida. 

 Types in National Museum. 



