SUBFAMILY I. M ANTING. 117 



bb. Pronotum subquadutte, but little longer than broad, its sides paral- 

 lel (Fig. 50, b.) II. EREMIAPHILIN.E, p. 128. 

 oa. Head armed at middle with a pair of processes, as long as the head 

 itself; upper surface of middle and hind femora and tibiae carinate. 



III. VATIN.E, p. 129. 



Subfamily I. M ANTING. 



To this subfamily, as characterized in the key, belong eleven 

 of the fourteen genera of Mantidse known from the United States. 

 Of these seven are represented in the region east of the Mississippi 

 River, six of them by only a single species each. 



KEY TO EASTERN GENERA OF MANTIN.-E. 



a. Front tibia one-half or more the length of front femur; form robust 

 that of female usually the more so; tegmina and wings present in 

 both sexes. 



b. Margin of abdomen in both sexes entire; broadest part of prono- 

 tum far in advance of middle, the sides in front, of this again 

 more or less converging to apex, which is rounded ( Fig. 50, a.) 

 c. Larger, pronotum more than ,.0 mm. in length. 



fl. Tegmina of female notably shorter than the abdomen; facial 

 shield, (just below the antenna 3 ) transverse, distinctly more 

 than twice as wide as high (Fig. 50, cl. ) I. STAGMOMANTIS. 

 (Id. Tegmina of both sexes reaching or exceeding the tip of ab- 

 domen ; facial shield not more than twice as wide as high 

 (Fig. 50, e.) 



e. Inner surface of front coxae with a large oval piceous spot 

 on basal third; tips of tegmina and wings broadly rounded; 

 length of body not over 60 mm. II. MANTIS. 



ee. Inner surface of front coxae without a piceous spot; tips of 

 tegmina and wings acutely rounded; length of body 80 or 

 more mm. III. PARATENODERA. 



cc. Smaller, length of pronotum less than 10 mm. IV. CALLIMANTIS. 

 bb. Margin of abdomen in female lobed, in male more or less serrate; 

 broadest part of pronotum beginning about the middle, the sides 

 nearly parallel from there to apex, which is almost truncate 

 (Fig. 50, o.) V. GONATISTA. 



aa. Front tibia not more than one-third the length of front femur; form 

 very slender in both sexes; tegmina and wings absent in the females. 

 f. Front tibiae longer than their apical claws; pronotum strongly nar- 

 rowed in front of middle, its fore and hind sections sub-equal in 

 length. VI. OLIGONYX. 



ff. Front tibiae distinctly shorter than their apical claws; hind section of 

 pronotum about three times as long as front one. VII. THESPROTIA. 



I. STAGMOMANTIS Saussure, 1S(W, 56. (Gr., "stigma bearing" -f- 



"prophet.") 



Body of male narrow, of female much broader. Head large, 

 compressed, triangular; antennae short, slender, inserted about 



