1905.] NATURAL SCIENCES OF PHILADELPHIA. 411 



T. pvlchella it can be separated immediately by the slenderer form and 

 the shape of the caudal process of the pronotnm. 

 ' Size medium (for the genus) ; male moderately slender, female short 

 and he&yy built. Head with the occiput and vertex rounded, sub- 

 globose ; interspace between the eyes equal to the length of the eye in 

 the female, equal to the width of the eye in the male; fastigium broad, 

 subrectangulate, very distinctly declivent, slightly excavated, the lat- 

 eral carinae more marked than the rather faint median one; frontal 

 costa very narrow, deeply sulcate, evanescent immediately below the 

 median ocellus ; lateral carinae of the face distinct but not very sharp ; 

 eyes quite prominent and elliptical oval in the male, moderately jDromi- 

 nent and subovate in the female; antennae slightly depressed proximad, 

 in an imperfect state slightly shorter than the head and pronotum. 

 Pronotum compressed, metazona slightly longer than the prozona; 

 median keel strongly elevated, compressed, roughly arcuate on the 

 prozona, deeply slit but not distinctly divided by two transverse sulci, 

 the caudal section being slightly higher than the cephalic; caudal 



Fig. 10. — Tceniopoda varipennis n. sp. Male type. 



transverse sulcus deeply dividing the median keel; metazona with the 

 keel strongly arcuate, lateral portions of the disk flattened; humeral 

 angles very distinct, not extending much cephalad of the last sulcus; 

 cephalic margin produced over the head in a small subrectangulate (c?) 

 or obtuse-angulate (?) process, caudal margin produced into a long 

 and distinctly hastate process in the male and an acute-angulate one 

 in'the female; lateral lobes considerably longer than deep. Tegmina 

 rather broad, costal border distinctly arcuate, apex rounded with a 

 faint oblique truncation ; in the male exceeding the apex of the abdo- 

 men by two-thirds the length of the pronotimi, in the female not ex- 

 ceeding the apex of the abdomen. Wings with the expanded portion 

 of the axillary field broader distad than proximad and with the cross 

 veins oblique; second lobe strongly developed, particularly so in the 

 female. Prosternal spine long, erect, acute. Interspace between the 

 mesosternal lobes strongly transverse, the lateral angles rounded. 

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