330 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Measurements. 
Body 
Tegmina 
Pronotum Ant. fem. 
Ant. tib. 
Post. fem. 
Antenna 
Male 
. 89 
61 
25 19 
12 
26 
42 
Female. . . 
. 89 
58 
26 21 
13 
27 
15 mm. 
This Mantis became established in the neighborhood of Phil- 
adelphia in the late '90's in the vicinity of large nurseries which 
imported plants from the Old World. Egg-masses from this 
colony have been distributed from time to time in the hope of 
promoting the widespread introduction in this countr}^ of this 
beautiful and useful insect. A few were placed out at Wellesley 
and a single adult was captured in the fall of the same season. 
Better luck attended their introduction into Connecticut, where 
Walden states that twenty-five masses were placed in five local- 
ities in the winter of 1904 with the result that about a dozen adults 
were seen in three of these localities the following autumn and a 
few were found the second season, showing that the insect may 
live through the winter in southern New England. It has also 
apparently been introduced a second time into Connecticut on 
plants received directly from Japan. It is, however, very doubt- 
ful whether it has become permanently established within our 
limits. 
European Praying Mantis. 
Mantis religiosa (Linne). 
Gryllus {Mantis) religiosa Linne, Syst. Nat., ed. 10, vol. 1, p. 426 (1758). 
Mantis re%io.sa Walden, Bull. Geol. Nat. Hist. Surv. Ct., no. 16, p. 60 (1911). 
Nearly uniform green or pale brown, with an oval dark spot on 
the inner face of the front coxae near the base. 
Measurements. 
Body Tegmina Posterior femora 
Male 40-53 29-36 14-16 
Female 48-76 32-49 15-18 mm. 
This well-known European insect has become established in 
the \'icinity of Rochester, New York. The original introduction 
was probably accidental, with nursery stock. "As this species 
often lays its egg-masses on the stems of grass it has been sug- 
gested that an egg-mass might have been in the hay which is often 
