1904.] NATURAL SCIENCES OF PHILADELPHIA. 785 



immature specimen in the scries examined was taken on November 30. 

 The adults were taken on dates extending from the latter part of 

 October to the early part of April. 



This species of the pine forest, although it is singularly protected by 

 its coloration when in its favorite haunt among the pine needles, is, 

 nevertheless, a most wary and active species. Both males and females 

 fly with the greatest rapidity and when alarmed will keep on the wing 

 for a considerable distance. When approached quietly they will 

 spring up with great speed, but only fly a short distance. Diving 

 into a tuft of w^ire-grass and pine needles, they seem to literally glide 

 down to the most obscure place at the roots of the grass, where, 

 although perfectly hid, they remain alert and upon the approach of 

 anything make another rapid flight to some still safer place. I have 

 never been able to ascertain how these insects are able to start out of 

 the center of a thick tuft of grass at full speed and dive into the very 

 center of another in the space of time required by them. This is the 

 only species I know of that can slip out of one's hand when, after 

 approaching within a few inches of the specimen, one pounces upon it. 

 It can not only do this, however, but can escape with such speed that 

 track of it is very easily lost. (M. H.) 



Orphulella pratorum Scudder. 



This species is, judging from the amount of material examined, 

 exceedingly abundant at Thomas\allc from late June to late October, 

 but particularly in September; while individuals taken in November, 

 December, May and early June show its presence then, but probably 

 not in such numbers as in summer and early fall. The series examined 

 numbers four hundred and twenty-four specimens and represents all 

 types and shades of coloration, as well as illustrating the great diversity 

 in size exhibited by specimens of the female sex. 

 Dichromorpha viridis (Scudder). 



This species is represented by a series of one hundred and forty-three 

 specimens from Thomasville, taken in the months from June to 

 December inclusive. As usual in the species, great variation in size 

 is exhibited by the series, and both color forms are represented, the 

 green being greatly in the majority. 

 Arphia xanthoptera (Burmeister). 



This species is represented in the material studied by four specimens, 

 one male and three females, taken at Thomasville, March 16, Septem- 

 ber 24, November 30 and December 10. 



Between December and March a stray specimen of this species may 

 occasionally be met with in the oak and hickory woods. (M. H.) 



