1905.] 



NATURAL SCIENCES OF PHILADELPHIA. 



449 



cate above the ocellus, rounding into the fastigial groove without in- 

 terruption, slightly and narrowly sulcate below; lateral ocelli placed 

 on the fastigial margin close to the eye; eyes short-ovate, quite promi- 

 nent in the male, eciual to (male) or considerably less than (female) the 

 infra-ocular length of the genae; antennfe filiform, in the male very 

 slightly shorter than the caudal femora. Pronotum distinctly tectate, 



Fig. 40. — Microtylopterux hehardi n. gen. and sp. Lateral view of female type. 



elevated cephalad; median carina rather weak, a slight elevation 

 present at the cephalic margin, a very distinct and slightly hooked 

 ridge at the caudal margin, no lateral carinae present but distinct lateral 

 shoulders; cephalic margin arcuate in the male, subtruncate in the 

 female; caudal margin very broadl}^, shallowly and triangularly emar- 

 ginate; lateral lobes distinctly longer than deep, cephalic margin 

 oblique, ventral margin obliquely emarginate cephalad, arcuate caudad. 



Fig. 41. 



Fig. 42. 



Fig. 41. — Microtylopteryx fusiformis, lateral view of apex of male abdomen. Fig. 

 42.^J/. hehardi, lateral view of apex of male abdomen. 



ventro-ca\idal angle subrectangulate in the male and obtuse-angulate 

 in the female, caudal margin with a distinct rotundate emargination 

 above the angle; transverse sulci two in number, rather weak, par- 

 ticularly in the female, metazona about one-fourth the length of the 

 prozona in the male, less than one-fourth in the female; lateral shoul- 

 ders arcuate when viewed laterad. Metanotum and proximal segment 



