1907.] NATL'H.VL 8CIEN-CES OF PITILADELnilA. 315 



specimens were abuiulant in the low places in the pine woods where 

 the wire-grass was most luxuriant. Individuals were usually suffi- 

 ciently inactive to be caught easily, with or without a net. 



The range of this species now extends from Thomasville, Thomas 

 County, and Brunswick, Glynn County, Ga., to Cedar Keys, Levy 

 County, and Sanford, Orange County, Fla. 



Atlanticus gibbosus ScuiMer. 



Four adults, three males and one female, taken at Pablo Beach, 

 August 11 and 14, represent this species. The individuals collected 

 "svere taken in palmetto scrub and salt marsh and the species was not 

 common. 



As the information regarding this species is very meagre, measure- 

 ments of an individual of each sex are here given. 



Pablo Beach, Pablo Beach, 

 Aug. 11,1 90.5. Aug. 1 1 , 1905 . 



& 9 



Length of body, 29 mm. 28 mm. 



Length of pronotum, 13 " 12.5 " 



Length of caudal femur, 32.2 " 34.5 " 



Length of ovipositor, 29.2 " 



This species possesses greater strength in the jaws than any other 

 North American orthopterous insect known to us. A single bite can 

 easily pierce the cuticle and cause the blood to flow. In consequence 

 the field collector quickly acquires a wholesome respect for their 

 defensive a]3ilities. Individuals showed surprising activity in escaping 

 when alarmed by seeking hiding places under the scrub palmettoes, to 

 which they hurried with seeming ungainliness but nevertheless con- 

 siderable speed. 



GRYLLID^. 

 Mogoplistes slossoni Scudder. 



A single male individual was found August 12, in a bed at the hotel 

 at Pablo Beach where the authors stayed. The specimen is consider- 

 ably rubbed and in consequence the silvery scales of the perfect insect 

 are almost entirely gone. The antennae show no signs of annulations, 

 but the limbs are supplied with imperfect and irregular rings of blackish 

 brown and pale ochre. 



The measurements of the specimen are as follows : 



Length of body, 8 mm. 



Length of pronotum, 2.8 " 



Caudal width of ])ronotum, 2 " 



Length of caudal femur 4 " 



Length of styles, (k2 " 



