No. 1 6.] ORTHOPTERA OF CONNECTICUT. 6l 



This is a European species which was found in New York 

 state near Rochester in 1899,* and has since become well es- 

 tablished in that vicinity. This was probably also introduced 

 with nursery stock. As this species often lays its egg-mass on 

 the stems of grass, it has been suggested that an egg-mass might 

 have been in the hay which is often used for packing when 

 shipping nursery stock. Egg-masses of this species were ob- 

 tained in 1903, and brought to Connecticut, but they failed to 

 hatch. 



PHASMID^E. 



This family contains the insects known as 'walking-sticks." 

 The body is very long and nearly cylindrical. The head is not 

 covered by the pronotum. The eyes are small, the ocelli often 

 wanting. Tegmina and wings are wanting in the species of the 

 United States. The legs are long and slender, nearly equal in 

 size. The tarsi are usually five-jointed and terminate with claws. 



The Phasmidce are best represented in the tropics where 

 forms are found with large wings, one species especially being 

 remarkable for its close resemblance to a leaf. The species of 

 the United States, which are confined largely to the southern 

 states, are wingless and mimic the twigs on which they feed. 

 Despite the fact that these insects are very slender and have long 

 legs, they are awkward and sluggish in their movements, and 

 depend largely upon their protective resemblance to escape de- 

 tection. The eggs of these insects are dropped singly upon the 

 ground in the fall, where they remain unprotected through the 

 winter. These usually hatch irregularly through the first season, 

 and it is stated that some may not hatch until the second season. 



Diapheromera Gray. 



Head smooth, oval or sub-quadrate, and obliquely attached 

 to the thorax. Antennae exceeding twice the length of the 

 anterior femora. The first segment of the thorax less than 

 one-fourth the length of the second and third, which are about 

 equal in length. Body long, slender, and cylindrical, " stick- 

 like," that of the male terminating in cylindrical, incurved cerci, 

 longer than the last abdominal segment. Legs very slender, the 



* Cornell University Experiment Station, Bull. 185, 1900. 



