114 ENTOMOLOGICAL NEWS. [Mar., 'l7 



STEIRODON Serville. 



Kirby's treatment of the specific names under this genus is 

 incorrect, as he completely ignores Stal's examination 10 of 

 the Linnean material of Gryllus (Tettigonia} citrifolius. 



The original material, according to Stal, belongs to the genus 

 Posidippus. As this material was examined by a competent 

 student its importance completely overshadows the Roesel fig- 

 ure 11 referred to by Linnaeus, which quite clearly depicts a 

 member of the genus Peucestcs. 



Kirby, however, apparently without any justification, con- 

 siders Linneaus' species to be a Steirodon. The above expla- 

 nation will show the error of his association. 



As we have already shown, 12 the genus Steirodon must have 

 as its type, there designated some months before Kirby's in- 

 dication, Phylloxera citrifolia Thunberg (not Gryllus (Tetti- 

 gonia) cifrifolius Linnaeus), the original material of which is 

 a Steirodon according to Stal, who renamed it Steirodon 

 r alidum. The Locusta citrifolia of DeGeer 13 is clearly a Posi- 

 dippus, while Stoll's LocKsta citrifolia u is with equal certainty 

 a Peucestes. 



The genera Steirodon and Peucestcs are extremely close, in 

 fact females of Peucestes dentatus are quite liable to be mistak- 

 en for species of Steirodon, as the distal ramus of the median 

 vein of the tegmina in the four females seen reaches the apex 

 of the tegmina, a feature supposed to be characteristic of 

 Steirodon. Males of the same species, however, do not show 

 this peculiarity, the ramus reaching the sutural margin. More 

 material may show the necessity of uniting Peucestes, in whole 

 or at least in part, with the older Steirodon. 



PEUCESTES Stal. 



For remarks on the close relationship of Pcnccslcs and 

 Steirodon see above under the latter genus. 



Peucestes striolatus Brunner. 



1878. P\cuccstcs~\ striolatus Brunner, Monogr. der Phaneropt., p. 366. 

 f Pernambuco and Bahia, Brazil; Panama; Peru.] 



10 Recens. Orthopt.. II, p. 45 (1874). 



11 Insect. Belust, IT, p. 107. pi. XVI. fig. i. 



12 Proc. Acad. Nat. Sci., Phila., 1005, p. 807 (1906). 

 : 'Mem. Ins.. TIT, p. 437, pi. 37- fig. 3 d773)- 



"Natuur. Afbeeld. Beschr. etc., Zahelspr., p. n, pi. IVa, fig. 12 (1813). 



