ZYGOGEAMMA. 211 



Eab. Mexico, Oaxaca (Edge), Coscomatepec, Cordova, Orizaba, Guanajuato, Jalapa, 

 Yolos (Salle), San Luis Potosi (I)r. Palmer); Beitish Hondukas, river Sarstoon 

 (Blancaneaux); Guatemala, San Geronimo, Capetillo (Champion); Costa Rica (van 

 Patten). 



This is apparently a most common species in Guatemala, whence it has been 

 received in great numbers, plenty of specimens having been also obtained by Herr Hoge 

 in Mexico. Although closely allied to Z. piceieollis, it may be at once distinguished 

 from that species by the elongate and oblique shoulder-stripe, which is always connected 

 with the sutural band near the middle ; the colour of the body and thorax, as well as 

 that of the elytral marks, is also constantly greenish black, and never fulvous or piceous 

 as in Z. piceicollis. The species, on the whole, does not seem to be subject to variation 

 in regard to the elytral spots, as, amongst more than a hundred specimens which I have 

 before me, only one shows a greater extension of the dark marks than the rest. 



5. Zygogramma malvsB. (Tab. XII. fig. 2.) 



Calligrapha malvce, Stal, Diagn. 1859, p. 322; Monogr. Chrys. Amer. p. 255 \ 

 Calligrapha signifera, Sturm, Cat. 1843, p. 288 2 . 



Eab. Mexico 12 , Guanajuato (JDuges, coll. Salle), Ventanas (Forrer). 



This species seems to be confined to Mexico. The elytra have the parts near the 

 sides unicolorous ; a curved longitudinal vitta, thickened at the middle, and having a 

 hook-like appendage at its end, extends from the shoulder to a short distance from the 

 apex ; it is connected with another short streak at the shoulder ; an oval spot is placed 

 near the scutellum, and three smaller ones posteriorly near the lateral margin. The 

 colour of the body, legs, and thorax is greenish. 



6. Zygogramma dulcis. (Tab. XII. fig. 1.) 



Calligrapha dulcis, Stal, Diagn. 1859, p. 322 ; Monogr. Chrys. Amer. p. 251 l . 

 Calligrapha lepida, Sturm, Cat. 1843, p. 288 2 . 



Eab. Mexico x 2 , Juquila, Oaxaca, Cerro de Plumas (Edge), Playa Vicente (Salle), 

 Milpas, 5900 feet (Forrer). 



Stal compares this species to Z. signatipennis in regard to shape ; all the specimens 

 which I have for examination, however, are shorter and more convex than in the latter 

 species ; the thorax and legs are more or less fulvous, with a slight greenish gloss. As 

 in Z. signatipennis, there is an oblique band extending from the shoulder to the middle 

 of the suture; below this band, and parallel with it, three spots are placed, and two 

 others near the apex ; these spots are sometimes more or less confluent ; a narrow dark 

 line is situated at the lateral margin from before the middle to the apex; in this 

 character the species agrees with several others. A large specimen of this species, 

 named Calligrapha tritona, and marked " type Stal," is contained in Mr. Baly's collection. 



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