1906. 



NATURAL SCIENCES OF PHILADELPHIA. 



13 



excavated dorsad and mesad, very strongly compressed dorsad, slightly 

 broader and parallel to the ocellus, gently but regularly diverging to 

 the clypeus, the margins in the male all more or less sinuate; antennae 

 of the male distinctly but not greatly exceeding the head and prono- 

 tum in length, strongly ensiform, depressed, greatest width not con- 

 tained more than seven times in length, the proximal section slender 

 and the apex acute; eyes elongate subovoid, much more acute cephalad 

 in the female than in the male, the infraocular sulcus slightly greater 

 than the length of the eye in both sexes. 



Pronotum of the male distinctly, but not very greatly, expanded 

 and sub-bullate on the metazona, of the female with the metazona 

 but very slightly broader than the prozona, the lateral carinae slightly 

 and regularly expanding caudad ; cephalic margin subtruncate, caudal 

 margin obtuse-angulate in the male, obtuse in the female but with 

 the angle more acute and the side margins subemarginate ; median 

 carina distinct in both sexes, but apparently more prominent in the 

 female than in the male; lateral carinae of the male parallel on the 

 cephalic portion of the prozona and following the "shoulder" on the 

 metazona; prozona equal to the length of the metazona in the male, 



Hyaloptcri/x a'^inufi n. sp. Fig. 2. — Dorsal view of head and pronotum of male 

 type. Fig. 3. — Lateral view of genicular region of caudal femur of male type. 

 Fig. 4. — Dorsal view of head and pronotum of female type. (X 2.) 



very slightly shorter in the female; metazona in the male with the 

 dorsal rugae broken, irregular, and not strictly longitudinal, in the 

 female more regular than in the male but not strongly marked ; lateral 

 lobes with the dorsal length very considerably greater than the depth, 

 cephalic and caudal margins converging except for a short parallel 

 ventral section, the ventral margin sinuate-oblique. Tegmina of the 

 male broad, the greatest width about a fourth the distance from the 



