MORGAN HEBARD 147 



With these species, »S'. bennetti (Gray) and S. bogotensis Kirby 

 are clearly closely related, as shown by the very short mesonotum 

 and general type of coloration; the former, however, has the 

 caudal area of the wings immaculate, the latter has this area 

 smoky hyaline, with a broad curved milk-white band across the 

 middle, not extending to either margin, in addition to other 

 differential features, particularly of coloration. 



Type. — 9; Muzo, Boyaca, Colombia. Elevation, 2700 feet. 

 August, 1915. (From A. Maria.) [Hebard Collection, Type 

 No. 453.] 



Size medium for the genus. Head with meso-caudal portion of occiput 

 slightly depressed, bounded laterad by brief and shallow longitudinal carinae, 

 and also with a median carina weak but percurrent to the three rather well- 

 developed ocelli, which are rather closely placed on a raised heart-shaped area, 

 the vertex before the median ocellus showing a minute, but decided, depression. 

 Antennae nearly as long as Ixjdy. Pronotum decidedly longer than the very 

 short mesonotum, mesonotum not elevated caudad. Tegmina irregularh' 

 ovate, shoulders raised but bluntly rounded. Wings extending to apex of 

 abdomen. Abdomen smooth to ninth dorsal segment, which is strongly con- 

 vex, with lateral margins straight to near y)ase of cerci, thence broadly and 

 weakly concave to mesal sixth of margin, which is slightly less broadly and more 

 strongly concave, leaving the convex apex of the supra-anal plate briefly ex- 

 posed. Cerci slender, simple, hairy, very feebly incurved to the rather sharply 

 rounded apex. Operculum elongate, hairy, free margins distad convex- 

 convergent to the apex, which is directly beneath the apex of the supra-anal 

 plate. Cephalic femora straight, all femora rounded above. Tibiae rounded, 

 hairy. Tarsi hairy, thickly supplied with coarse hairs ventrad, concealing 

 pulvilli. Aroha very small. Many features of coloration are of great diagnos- 

 tic value, specific structural differences in the present genus have been nuich 

 neglected in the descriptions of the species of the genus. 



Length of body, 45; pronotum, 3.7; mesonotum, 2.3; tegmen, (5.2; wing, 

 37.8; cephalic femur, 9.7; caudal femur, 13.8; caudal tibia, 14.2 mm. Width 

 of Dronotum, 2.5; dorsal portion of tegmen, 3; wing, 20.2 mm. 



General coloration civette green. Head pale yellowish green, with iieavy 

 postocular longitudinal bands of black, and between these irregular occipital 

 bands of the same coloration. Mouthparts and antennae black, the two 

 proximal antennal joints showing weak maculations of {)ale greenish. Prono- 

 tum and mesonotum rinnemann's green, suffused meso-laterad with black. 

 Lateral field of tegmina shining jet black, dorsal field civette green with veins 

 black. Wing with lateral field shining jet black, except in proximal two-thirds 

 of area between mediastine and humeral veins which is solidly civette green 

 proximad, becoming paler, whitish and less extensive distad; dorsal field 

 civette green with veins black; posterior field transparent, heavil}' suffused 

 with black, except for a large, roughly circular, median area suffused with white 

 (10.2 by 10.8 mm.). JNIetapleura black, with a median and ventral longitudinal 



TRANS. AM. ENT. SOC, XLV. 



