1911.] 



NATURAL SCIENCES OF PHILADELPHIA. 



329 



Fig. 2. — Xylica ki- 

 kuyuensis n. sp. 

 Dorsal outline of 

 fifth abdominal 

 segment ($). 

 (X 5.) 



paired tubercles; eyes elliptical, prominent; antennae subequal to 

 the cephalic femora in length, composed of twenty joints, proximal 

 one compressed, lamellate. Prothorax slightly longitudinal, rect- 

 agonal, caudal margin with a median pair of tubercles. Mesothorax 

 slightly less than three times the length of the prothorax, subequal 

 to the prothorax except caudad where it is somewhat expanded, 

 medio-longitudinal carina distinct and continuous over the metathorax 

 as well; supplementary carinas reaching about to middle of segment, 

 sinuate, lateral margins undulato-carinate. Metathorax about two- 

 thirds the length of mesothorax, much similar 

 in character, but with the supplementary carinas 

 reaching about to the median segment, then 

 curving laterad; median segment comprising 

 two- fifths of the total metathoracic length, 

 imperfectly defined, very slightly transverse, 

 supplied caudad with paired tubercles as on the 

 mesonotum. Abdomen with distinct median and 

 supplementary longitudinal carinas, as well as more 

 or less complete lateral ones and numerous short 

 ruga? ; each of the four proximal segments with a caudal pair of tubercles, 

 as on the mesonotum and median segment ; median carina on fifth to 

 eighth segment cristate sublamellate; fifth dorsal abdominal segment 

 supplied with paired horizontal dentate lobes developed on each side of 

 the base of the median crest; anal segment obtuse- angulate distad; 

 cerci broad, depressed, apex acute ; subgenital operculum spoon-shaped, 

 carinate ventrad, apically margin acute-angulate, the immediate apex 



rounded. Mesosternum distinctly medio-longitud- 

 inally carinate. Cephalic limbs short; femora 

 decidedly compressed, proximal flexure very 

 marked; tibia? slightly longer than the femora, 

 compressed ; metatarsi subcristate. Median limbs 

 very short, femora not as long as the mesothorax. 

 Caudal limbs short, femora compressed. 



General color probably pale greenish in life, 

 some of the insect being now of this color, the remainder undoubtedly 

 discolored and of a dull brownish. Antenna? annulate more or less 

 regularly on alternate segments with Vandyke brown ; eyes walnut- 

 brown, crossed by one of several lateral longitudinal lines of Van- 

 dyke brown. Cephalic tibia? tipped with dark brown. Vicinity of 

 cephalic horns and internal portion of proximal extremity of cephalic 

 femora pinkish. 

 22 



Fig. 3. — Xylica ki- 

 kuyuensis n. sp. 

 Lateral outline 

 of apex of abdo- 

 men ($). (X3.) 



