Mr. R. Shelford's Studies of the BlaUidm. 



)09 



Walkee's Nomenclature. 



Blatta colligata 

 Blatta polygrapha 

 Blatta suffusa 

 Blatta amplectens 

 Blatta hamifera 

 Blatta ignobilis 

 Blatta funebris 

 Blatta palpalis 

 Blatta obtusifrons 

 Blatta elegans 

 Blatta apicigera 

 Blatta propinqua 

 Blatta contigua 

 Blatta contingens 

 Blatta sequens 

 Blatta gutt'ifera 

 Blatta xanthopila 



Blatta laterifera 

 Blatta virescens 

 Blatta majuscula 

 Blatta marmorata 

 Blatta humeralis 

 Blatta piet'icollis 

 Blatta bipunctata 

 Blatta laticeps 

 Blatta circumducta 

 Blatta longiuscnla 

 Blatta patula 

 Blatta latirupta 

 Ischnoptera reversa 

 Isclinoptera conferta 

 Ischnoptera ? obliqua 

 Ischnoptera ? punctosa 

 Periplaneta aterrima 

 Periplaneta oeulata 



Revised Nomenclature. 



PhyUodromia colligata, Wlk. 

 Phyllodromia polygrapha, Wlk. 

 PhyUodromia suffusa, Wlk. 

 Phyllodromia amplectens, Wlk. 

 Phyllodromia hamifera, Wlk. 

 PhyUodromia ignobilis, Wlk. 

 Phyllodromia funebris, Wlk. 

 Duryodana palpalis, Wlk. 

 Phyllodromia obtusifrons, Wlk. 

 Phyllodromia elegans, Wlk. 

 Theganopteryx apicigera, Wlk. 

 Phyllodromia propinqua, Wlk. 

 Phyllodromia propinqua, Wlk. 

 Phyllodromia contingens,Wl'k. $ . 

 Phyllodromia sequens, Wlk. 

 Phyllodromia guttifera, Wlk. 

 Pseudothyrsocera xanthophUa, 



Wlk. 

 Phyllodromia laterifera, Wlk. 

 Phyllodromia virescens, Wlk. 

 Phyllodromia majusada, Wlk. 

 Phyllodromia marmorata, Wlk. 

 Phyllodromia conimc/e?is, Wlk. ^ . 

 Phylodromia picticollis, Wlk. 

 Pseudectobia bipxmctata, Wlk. 

 Pseudopk yllodromialatic.eps^\]s.. 

 Escala circumducta, Wlk. 

 Escala longiuscxda, Wlk. 

 Allacta mwndicola, Wlk. 9 • 

 Allacta mundicola, Wlk. i^ . 

 Ischnoptera reversa, Wlk. 

 Leucophsea conferta, Wlk. 

 Pinaconota obliqua, Wlk. 

 Oniscosoma punctosa, Wlk. 

 Pehnatosilpha aterrima, Wlk. 

 Methana ocidata, Wlk. 



Vr. Viviparity amongst the Blattid^^. 



Attention was first called to this phenomenon amongst 

 the Blattidm by Riley ("Insect Life," vol. iii,p. 443, 1890- 

 1891 and vol. iv, p. 119, 1892), who observed it in 

 Pancldora viridis, Burm. Scudder had already noted 

 (Psyche, vol. v, p. 405, 1890) the occurrence of a female 

 specimen of Pancldora nivea, L., found alive in a bath- 

 room at Salem, Mass., surrounded by numerous newly- 

 hatched young, but he had not been able to demonstrate 

 the actual birth of these young. Riley dissected one of 



