140 OBTHOPTEKA. 



spots. In some specimens a part only of the wings is infuscated. It seems probable 

 that the coloration of the two types is sometimes reversed. Is not S. ccerulans a mere 

 variety of S. Carolina, in which the fuscous colour has replaced the yellow bands % 



Synopsis specierum. 



I. 



1. Femirue : 



a. Elytra et alae rudimentaria. Elytra apice attenuata, rotundato-acurainata. Color prasina. 

 b. Corpus mediocre. Prothorax coxis anticis sesquilongior. Elytra primum abdominis 

 segmentum haud superantia. Alee antice flavae, postice nigrse. 

 c. Caput paulo latius. — 1. nahua, Sss. 

 cc. Caput angustius. — 2. vicina, Sss. 

 bb. Gracillima. Prothorax coxis anticis duplo longior. Elytra secundum abdominis seg- 

 mentum tegentia. Alse flavse. — 3. heterogamia, sp. n. 

 aa. Elytra et alae longiora, abdominis apicem tamen liberantia et ad apicem lata. 

 b. Elytra apice rotundata, stigmate corneo discoidali longitudinali vel ovato. 



c. Elytra campo marginali angusto, quartam partem latitudinis elytri efficiens Pro- 

 thorax coxis anticis sesquilongior. 

 d. Alse lineis vel f asciis flavis coriaceis tessellatse. Prothoracis pars antica angustior, 

 piriformis, utrinque subsinuata. 

 e. Elytra macula nigra nitida ad stigma posita ; campus marginalia basi quam 

 in medio latior, margine costali recto vel leviter sinuato. Prothorax plus 

 quam f longitudinis elytrorum sequans, parte antica piriformis utrinque 

 sinuata ; subtus ad coxas niger. Coxae intus ima basi et lobo apicali postico 

 nigrse. Femora anteriora macula ad sulcum nigra notata. Alse bicolores, 

 apice macula fusca. 

 /. Grrisese ; elytris fusco-marmoratis ; pedibus fusco-f asciatis. Spinse coxarum 

 anticarum et illae marginis interni femorum partim nigrse. 

 g. Elytra fusco-irrorata. Alarum campus anterior angustior; margo 

 anterior campi posterioris citrimis; campus posterior pellucenti- 

 fuscus, lineolis flavis transversis tessellatus. — 4. Carolina, L. 

 gg. Elytra maculis majoribus fusco-marmorata. Alarum campus anterior 

 latior, totus ac campi postici dimidia pars antica, rubri ; campus 

 posterior de reliquo lineis flavis tessellatus. — 5. tolteca, Sss. 

 ff. Tota prasina. Alae campo anteriore et dimidia parte antica campi postici 

 opaco-flavis, de reliquo hyalinse, fasciis opacis flavis tessellatse. Spinse 

 pedum anticorum tantum apice nigro, illse coxarum prasinse. — 6. dimi- 

 diata, B. 

 ee. Elytra latiora, stigmate concolore ; campus marginalis in medio quam basi 

 latior, margine costali arcuato. Prothorax breviusculus, haud plus quam § 

 longitudinis elytrorum efficiens, parte antica subelliptica, utrinque haud 

 sinuata. Coxae et femora anteriora immaculata (spinae femorum et tibiarum 

 anticarum tantum apice nigro). 



