1007.] XATUHAL SCIENCES OF PHILADELPHIA. 283 



men, while fully adult, has the tegmina and wings but slightly 

 exceeding the margin of the second abdominal segment. 

 Thesprotia graminis (Scudder). 



One male from Gainesville, August 16 (undergrowth in pine woods), 

 represents this species. 



PHASMIDiB. 

 MANOMERA.' n. gen. 



1900. Bncunculus Scudder, Proc. Davenport Acad. Nat. Sci., VIII, p. 9.5. 



[Not of Burmeister, 1838.] 

 190.3. Bacunculus Caudell, Proc. U. S. Nat. Mus., XXVI, p. 872. [Not of 



Burmeister.] i , 



On comparison of material of Scudder's Bacunculus tenuescens with 

 specimens and figures of typical species of Ileteronemia Gray {Bacuncu- 

 lus of authors, but not of Burmeister), it is evident that no close rela- 

 tionship exists in that direction, and affinity really exists with Dia- 

 pheromera instead of Bacunculus of authors. 



The original description given by Scudder omits mention of the very 

 distinct spines present on the median femora of the male, although his 

 figures (pi. 1, figs. 1 and 2) show their presence. On the basis of 

 Scudder's description, Caudell, who had never seen the male sex, says, 

 in describing the genus, ''Legs of male unarmed." The spine of the 

 median femora of the male is placed in the same position as in Dia- 

 pheromera, and is very similar in character but slenderer, the caudal 

 femora, however, being unarmed. 



The structure of the abdominal appendages is fundamentally the 

 same as in Diapheromera and not as in Heteroneniia, the subgenital 

 opercule being in no way like the latter genus. From Diapheromera, 

 Manomera can be separated in the male by the slender head, the absence 

 of caudal femoral spines, the uninfiated median femora and the more 

 elongate abdominal appendages. 



Manomera tenuescens (Scudder). 



A male from Pablo Beach, August 12, another from San Pablo, 

 August 13, and three males and five females from Gainesville, August 

 16, represent this peculiar Florida form. The male from Pablo Beach 

 was swept from marsh grass, but all the other individuals taken w^ere 

 from the wire-grass and other low undergrowth in pine woods, where 

 protective resemblance would appear to be an important factor in the 

 life of the insect. 



The specimeas vary considerably in size, particularly in the male sex, 



' Mavof, thin; nipa, thighs. 



