COLLECTION OF BLATTIB^ ENCLOSED IN AMBEE. 67 



specijfic name which I have adopted for this amber-enclosed Bhxttid indicates 

 the doubt with which I regard its identity. 



Phyllodromia inclusAj sp. n. (Pkte 7. fig. 8.) 



One male, No. 13765. 



Pale testaceous. Antennae longer than the body. Pronotum trapezoidal, 

 anteriorly not covering vertex of head, posteriorly very slightly produced. 

 Tegmina and wings exceeding apex of abdomen, but not by much. Discoidal 

 sectors of tegmina longitudinal. Supra-anal lamina produced, quadrate, 

 exceeding the apex of the subgenital lamina, which has the apex produced 

 into an asymmetrical lobe ; only one genital style^ the left^ visible. Cerci 

 rather short, Avith 11 visible joints. Front femora armed on anterior margin 

 beneath with 1-2 strong spines, succeeded distally by pilif orm setas ; remaining 

 femora moderately armed. 



Total length 12 mm. 



Phyllodeomia sp. 



One male, No. 1 13759. 



The block of amber in which the specimen is embedded has been so cut 

 that it is impossible to get anything but a side view of the cockroach, and 

 even this is obscured by the numerous cracks on the surface of the amber. 

 Under these circumstances it would be unwise to describe the species. I can 

 only say that it differs from the other species of the genus described from 

 amber faunas by the prolongation of the left posterior angle of the subgenital 

 lamina into a spiniform process. 



Total length 13 mm. 



Peeiplaneta sp. (Plate 7. fig. 1.) 



Three larvse, Nos. 1 13760 (two specimens in one block), 1 13767. 



These larvse, the largest of which is not nearly half-grown, look as if they 

 might be the young oi Periplaneta australasice, Fab., a modern, cosmopolitan 

 species, but I think that they are not the same. I must, however, confess to 

 ignorance of the very young larvse of P. australasice ; if I may judge from 

 the many collections of Blattidse which have passed through my hands no 

 one has ever taken the trouble to acquire specimens illustrating the stages in 

 the life-history of the species. Even the exact generic determination of 

 this species is very doubtful ; it is quite likely that the discovery of the 

 adult will show that it must be referred to Pseudoderopeltis or even to 

 Stylopyga. The figure illustrating the larger of the larvas is of more value 

 than many words of description, and will perhaps enable other investigators 

 to decide if the species is distinct from P. australasice or not. The larvse are 

 brioht ochreous marked with castaneous. 



