DATA OF DISTRIBUTION. 5 



Dos Arroyos, and Chilpancingo, in the State of Guerrero (H. H. Smith); Huetamo, in 

 the State of Michoacan; Tapatchula, in the State of Chiapas (H. H. Smith); and Guate- 

 mala CerroZumil, El Reposo, Volcan de Atitlan, Zapote, and Las Mercedes (Champion). 



Leptinotarsa violescens Stal. 



Closely allied to L. libatrix and probably only a modified form of that species, which 

 is found higher up on the eastern and southern slopes of the plateau. It is recorded from 

 Maltrata,* Orizaba,* Cordoba,* Almolonga,* ' and Tuxtla,* all in the State of Vera Cruz 

 (Salle). 



Leptinotarsa chlorizans Suffr. 



A Pacific coast species not seen since it was first described. Recorded from Maz.atlan, 

 Sinaloa. 



Leptinotarsa litigiosa Suffr. 



Evidently closely allied to the preceding. Recorded from Mazatlan, State of Sinaloa, 

 Mexico. 



Leptinotarsa Uascalana Stal. 



Known only from the original description given by Stal, which would place it as a 

 near ally of L. dahlbomi. It is quite possible that it is a variation of this well-defined 

 species. The only locality given by Stal is Mexico. 



LACERATA GROUP. 

 Leptinotarsa lacerata Stal. 



Common in the northern and eastern part of the State of Oaxaca and also in the State 

 of Chiapas. Recorded from Oaxaca* (Hoge) and Etla (Salle) in Oaxaca, and at Playa 

 Vicente* (Hoge), Paras,* and La Parada 2 (Sall) in Vera Cruz; Cuernavaca,* Barranca 

 de San Anton,* State of Morelos. 



Leptinotarsa heydeni Stal. 



Stal gives this species as coming from Brazil, but as all known specimens are from 

 Mexico it is probable that Stal was mistaken in the locality. It is known from Tanetza 

 (Salle) and Almolonga* 3 (Hoge) in Oaxaca,* and Tremax in northern Yucatan. 



Leptinotarsa puncticollis Jacoby. 



In many ways resembles L. heydeni. Known only from Ventanas in the State of 

 Durango (Forrer), and from Sonora (Jacoby). 



Leptinotarsa modesta Jacoby. 



Described from three specimens from Guanajuato,* Mexico (Sall); Ocotlan,* Jalisco. 



Leptinotarsa chalcospila Stal. 



Mexico. 



RUBIGINOSA GROUP. 



Leptinotarsa rubiginosa Rogers. 



A peculiar species not related to any of the other groups in the genus. Recorded from 



Mazatlan (Suffr.), the Alvarez Mountains (Palmen), Ciudad Milpas (Forrer), Guanajuato 



(Salle), and Puebla* (Salle), Tlalpan,* Sante Fe,* Federal District. 



LINEATA GROUP. 

 Leptinotarsa undecimlineata Stal. 



The distribution of this species is, with one exception, the widest in the entire genus. 

 According to Stal (1S58), this insect is a native of Mexico, Costa Rica, Colombia, and Bolivia. 



1 See foot-note 2 on page 4. 



2 A locality " La Parada " often given by Salle' has not been located. 



3 A name given to a mountain and an accompanying tract of forest-covered hills and 

 areas of bushy savanna in the valley of the Rio Cosolapa. 



