266 



JAMES A. G. REHN. 



Type. — By elimination and selection, Blatta germanica Linnaeus.* 

 It will be seen that the species remaining in the genus are ger- 

 manica, bivittata, supelleetilium and alternant*. Of these germanica 

 can very rationally be selected as the type. 



The name Phyllodromica Fieber (Lotos, iii, pp. 93-94, 1853), 

 proposed independently, and not as an emendation of Phyllodromia, 

 has been generally disregarded. The species he placed in the genus 

 after examination are as follows : 



pallida Oliv., . . Aphlebia Brunner, 1865. 



perspicillaris Herhst., Ectobius Stephens. 1835. 



punctulata Fieb., . (Congeneric with perspicillaris.) 



laponica L., . . Ectobius Stephens. 



sardea Serv., . . Aphlebia, 1865. 



Megerlei Fieh., . . " 



marginata Fabr., . " 



macidata Charp., 



decipiens Germ., 



limbata Charp., . 



As seen above, Aphlebia must give way to Phyllodromica Fieber, 

 and of the included species, punctata {= Megerlei) can well be 

 selected as the type, as Brunner figured this form. 



Blattella germanica (Linnaeus). 



1767, [Blatta] germanica Linnaeus, Syst. Nat., xii ed., p. 688. [Denmark.] 



Two specimens; $ and 9; S au Jose and Tucurrique, Costa Rica. 

 (Schild and Burgdorf.) [U. S. N. M.] 



Blattella naliua (Saussure). 



1868, Blatta nahua Saussure, Revue et Magasin de Zoologie, 2e ser., xx, 

 p. 355. [Mexico.] 



* The included species of Serville's genus, and the genera into which the 

 eliminated ones were removed are given below. 

 plicipennis, 



Polyzosteria Burm., 1838. 

 Kakerlac Latreille, 1829. 



trivittata, . 

 elongata, . 

 lateralis, . 

 germanica, 

 bivittata, . 

 livida, 

 nigrifrons, 

 laponica, . 

 hemiptera, 

 sardea, 

 concolor, . 

 supelleetilium, 

 alternans ' 



Ischnoptera, 1865. 

 Pseudomops (Thyrsocera), 1865. 



Ectobius, 1835. 

 Chorisoneura, 1865. 

 Ectobius. 

 Ectobius. 



Phyllodromica, 1853. 

 Ectobius. 



