50 THE CANADIAN ENTOMOLOGIST. 



bekleidet sind, grade so wie bei den ^ von Tetrastichus, bei Tricliaporus 

 aber sind sie ganz kurz und gleiehformig .behaart. Der Fliigel weicht 

 ebenfalls von Pterothrix ab, indem er gleich Anozus am Vorderrande nur 

 einen kurzen Haarsauni hat. Der deutliche rannus stigmaticus gibt aber 

 acif der anderen Seite wieder ein gutes Unterscheidungsmerkmal der 

 Gattung Anozus gegeniiber ab." 



Hence the group was originally defined as tetrastichines, having 

 8-jointed antennae in both sexes, without a ring joint, and with uniform 

 short hairs, the scutellum without farrows, the fore wings with a stigmal 

 vein, but without long cilia on the cephalic margin. 



Foerster gave nothing more concerning the genus; no species was 

 mentioned as belonging to it ; under the code it is therefore without 

 status. Notwithstanding this, Taschenberg {1866) recognized the group, 

 as did also de Dalla Torre (1898), the latter, however, placing it among 

 the " Genera Sedis Incert?e " of the subfamily Tetrastichinae, with the 

 comment " Species exstat." 



In 1904 Ashmead took the name and applied it to a group of his 

 own species and one of Philippi's (1873), still quoting Foerster as 

 responsible for the name, and stating that the type was unknown but 

 giving a wholly different definition of the genus. Several years earlier 

 Ashmead (1900) removed Euderus columbianus Ashmead to T7'ichaporus 

 Foerster, thereby recognizing the latter. This species can not become 

 the type of the genus, since Ashmead in 1904 defined the genus with 

 characters which columbianus does not possess. Trichaporns Foerster, 

 1856, being non-existent, the group Trichoporus defined by Ashmead in 

 1904, and referred to Foerster, 1856, should become a genus novum 

 Foerster without designated type. For the latter purpose I select Tricho- 

 porus 7nelleus Ashmead, 1904, being one of the species upon which the 

 definition of the genus was evidently based, and the first one described by 

 Ashmead in 1904. (Exurus) Trichoporus colliguayœ (Philippi, 1873) is 

 the first species listed by Ashmead in 1904, but this is not selected as the 

 type of the genus because of the fact that it may not have been actually 

 seen by him, and its reference to this genus is, I believe, somewhat 

 doubtful. I retain the original spelling of Foerster — Trichaporns. 



The genus has no synonyms, unless Exurus Philippi, 1873, should 

 prove to be such. It is true that Ashmead (1904, p. 374) designated 

 Euderus Thomson (sic) (1878, p. 276) to be a synonym of Trichaporns 

 Foerster, 1856. But in the first place the latter was non-existent, and 

 secondly, Thomson never described a genus called Euderus^ but distinctly 



