JAMES A. G. REHN 253 



individual segments well indicated, faintly constricted at the intersegmental 

 sulci, well supplied with long hairs: subgenital plate slightly asynimetrical, 

 strongly concavo-emarginate latero-ventrad of the cerci, moderately produced 

 mesad; styles placed close together, elongate, heavy, compressed structures 

 having much the form of a "bill-hook," their internal margin sulcate, the re- 

 curved apex directed meso-ventrad and the proximal half much thickened and 

 broadened ventrad, there bearing proximad several long prominent bristles. 

 Limbs elongate, slender : median and caudal femora unarmed beneath ; cephalic 

 femora with ventro-cephalic margin piligerous, the same limbs with two 

 distinct genicular spines distad on the cejihalic face, a single one on the caudal 

 face, no dorsal genicular spine present; median and caudal femora with a 

 single distal genicular spine on each face and a dorsal genicular spine: tarsi 

 with arolia. 



Pronotum, aside from the disk, the marginal field and all of the scaj)ular 

 field of the tegmina, except a narrow section along the discoidal vein, hyaline: 

 disk of the pronotum ochraceous-orange, remainder of tegmina washed with 

 dull wax yellow, the venation strongly contrasted in mustard yellow. Head 

 with occiput ochraceous-orange, a broad dorsal interocular bar deep seal 

 brown; face clear naples yellow; eyes black; antennae shining seal brown, 

 paling to buckthorn brown distad ; palpi dull cinnamon-buff. Pronotum with 

 the hyaline cephalic and caudal margins pale; disk with a pair of faint wax 

 yellow dots caudad. Tegmina with a faint wash of ochraceous-orange along 

 the humeral trunk proximad. Wings infumate with clay color. Abdomen 

 dull primuline yellow. Limbs dull cinnamon-buff. 



Length of body, 8.6 mm.; length of pronotum, 2.4; greatest width of prono- 

 tum, 3.6; length of tegmen, 9.7; greatest width of tegmen, 3.5. 



The type of this really magnificent species is unique. 

 Chorisoneura lata new species (Plate XV, figs. 28, 29 and 30.) 



A very distinct species, allied, however, to C. tessellata which it 

 resembles in general from, from which lata can be readily separated 

 by the more depressed head and greater interspace between the 

 eyes, the absence of black from the vertex, in the presence of 

 paired white lines on the pronotal disk and in the more ferruginous 

 and less fulvescent wash of the interspaces of the colored portion 

 of the tegmina. 



Type.— cf ; Parc4, State of Pani, Brazil. ((\ V. Baker.) [Acad. 

 Nat. Sci. Phila., Type no. 5284.] 



Size large (for the genus) : form depressed, in outlin*^ elongate elliptico-ovoid: 

 surface shining. Head broad, decidedly depressed; when seen from the 

 dorsum practical^ the whole occiput and cephalic half of the eyes project 

 cephalad of the pronotum, occif)ital outline truncate, almost imperceptibly 

 concave when viewed from a dorso-caudal point: interspace between the eyes 

 broad, faintly more than one and ono-haff times the greatest depth of the 

 eye: eyes prominent, elongate reniform in basal outline, their greatest depth 

 contained about two and one-half times in their greatest length: antennae 



TR.\NS. AM. ENT. SOC, XLII. 



