1907.] 



NATURAL SCIENCES OF PHILADELPHIA. 



27 



in the female; eyes moderately prominent, slightly elevated above the 

 dorsal outline of the head in the 



male, in a general way continu- \ / 



ing the dorsal arciiation in the \ / 



female; antennie short, hardly 

 exceeding the head and prono- 

 tiim in the female. Pronotum 

 with the greatest width con- 

 tained about two and a fourth 

 times in the length, the dilation 

 considerable, the cephalic section 

 of the pronotum hardly con- 

 stricted and evenly rounded, the 

 caudal section considerably but 

 not greatly constricted, caudal 

 margin arcuate; median carina 

 distinct on the shaft of the pro- 

 notum, represented by a slight 

 longitudinal sulcus on the ceph- 

 alic section; lateral margins 

 practically unarmed in the male, 

 crenulato-dentate in the female. 

 Tegmina very slightly longer 

 than the pronotum in both sexes, 

 elongate-ovate in shape, stigma 

 present at about a third the dis- 

 tance from the apical margin, 

 the apex rotundato-truncate, 

 veins distinct. Wings slightly 

 projecting beyond the apices of 

 the tegmina. Abdomen with a 

 distinct longitudinal carina ex- 

 tending the whole length and 

 more distinct in the female than 

 in the male ; supra-anal plate of 

 the male with the apex subtrun- 

 cate and the width of the same 

 about equal to the length, sub- 

 genital plate with two very short apical styles, cerci exceeding the 

 supra-anal plate and reaching the tip of the subgenital; supra-anal 

 plate of the female similar to that of the male in shape but more pro- 



Fig. 1. — Litancuiria skinneri n. sp. Dorsal 

 view of male type. (X 4.) 



