DATA OF DISTRIBUTION. 7 



meter 191* (Cuernavaca Division of the Mexican Central Railroad), Balsas,^ and along 

 the Rio Balsas,* State of Guerrero ; Puebla,* Cholula,* Atlixco,*Tatetla,* Matamoros de 

 Izucar,* and Tlancualpican,* in the State of Puebla;* Oaxaca,* Mitla,* Tlacolula,* Tula,"^ 

 San Juan,* El Parian,* Tecomavaca,* and Venta Salada,* in the State of Oaxaca ; and 

 at Guadalupe * and Texcoco,* in the Federal District. It is common at all of these places 

 excepting the last two. It is probable that Hoge's record of L, deceinlineata from 

 Tacambaro, in Michoacan, and Smith's record at Chilpancingo and Venta de Zopilote, in 

 Guerrero, are really records of this species. The distribution is shown on plate i. 



Leptinotarsa multitaeniata Stal. 



This species is confined to the Plains of Apam, Puebla, the Valley of Mexico, and the 

 headwaters of the Rio I^erma. It is recorded from Puebla,* Atlixco,* Matamoros de 

 Izucar,* and San Marcos,* in the State of Puebla ;* Apizaco* and Tlascala,* State of 

 Tlascala ;* Irolo,* State of Hidalgo ; Toluca* and Ometusco,* State of Mexico ; Mexico 

 City* (Smith), Guadalupe,* Tacubaya,* Tacuba,* Santa Fe,* San Angel,* Tlalpam,* 

 Tlalnepaiitla,* Texcoco,* and Mixcoac,* in the Federal District; Cerro de Plumas (Hoge) , 

 and at La Parada (Sall6). The latter place I am unable to locate. The distribution is 

 shown on plate i. 



Leptinotarsa melanothorax Stal. 



This rather uncommon species is recorded from Mexico City * (Hoge) and Guadalupe,* 

 Federal District; Toluca* (Hoge, Salle), Puebla* (Hoge), Guanajuato* (Duges), and 

 Morelia (Hoge). 



Leptinotarsa intermedia n. sp. 



A form transitional between L. inultit(zniata and decemlineata, known from the Rio 

 lycrma Valley at Ocatlan,* La Barca,* Guadalajara,* Zopopan,* the Rio Panuco Valley at 

 Rio Verde,* and at Chihuahua.* 



Leptinotarsa rtjbicwnda n. sp. 



Known only from the high plateau at Toluca* and the basal slopes of Mount Toluca* 

 (altitude 8,500 to 9,500 feet). 



Leptinotarsa decemlineata Say. 



Although recorded from Mexico, I have not yet been able to find this species in that 

 country, and am convinced that it is strictly confined to the United States east of the 

 Rocky Mountains. It is common in the Mississippi Valley and its tributaries, and east- 

 ward to the Atlantic coast, northward in southern Canada, and southward to the Gulf of 

 Mexico. 



Leptinotarsa juncta Stal. 



This species originally had a much wider distribution than at present. It is now limited 

 to a narrow strip along the Gulf of Mexico and the lower Mississippi Valley. 



Leptinotarsa defecta Stal. 



A close ally of L.junda, which inhabits Texas, Colorado, Missouri, and Indian Terri- 

 tory. It is recorded from Dallas and Galveston, Texas, and from Pueblo, Colorado. It 

 has been collected by Salle in Yucatan, but no localities are given. Stal likewise records 

 it from the same regions from collections made by Chevrolat and Deyrolle. I have not 

 seen it from these regions and know nothing further concerning it. 



DILECTA GROUP, 

 Leptinotarsa calceata Stal. 



Common in the lowlands of the State of Vera Cruz and probably also in the region to 

 the south ; Misantla* (Hoge), Vera Cruz* (Salle), Orizaba,* and Motzorongo,* all in the 

 State of Vera Cruz. 



