Materials, Their Taxonomy and Natural History 51 



d, e, f, variable, but never fused to central system and never reaching to pro- 

 notum border ; scutellum brownish black, polished. Below : Light yellow-brown, 

 thoracic and abdominal segments with color-centers all distinct, rarely fused; 

 legs: femora, ends black, often extending to near middle, which is brownish 

 or reddish ; tibia and femora yellow brown or yellow, ends black ; tarsus brownish, 

 legs smooth, polished, few minute punctures, and rarely minute spines. 



Size: Male smaller than female, and both smaller than L. muUitceniata Stal 

 or L. decemlineata. Male, 7 to 11.5 mm. long, 5 to 6.5 mm. broad; female, 7 to 

 13 mm. long, 5 to 7.25 mm. broad. 



Sexes: Female with sternal sclerite of last abdominal segment rounded 

 smooth, and in male truncate and faintly grooved. 



Food: Solanum rostratum or its allies, and Solanum elceagnifolium in the 

 northern part of its range. 



Juvenile Stages. 



Eggs: As in L. muUitceniata, but smaller; leng-th 1.5 to 2.25 mm., 1 to 1.4 

 mm. broad. Incubation 6 to 10 days. 



First larval stage: Head, pronotum, and legs black; body dull yellow color 

 with sternal and pleural spots present, minute; tergal spots, especially outer 

 and posterior members, reduced or wanting, variable. Length, 2.25 to 3 mm. at 

 end of stage. 



Second larval stage : Head, legs, and pronotum yellow-brown, latter with the 

 posterior border black. Body dull yellow-red or ocher, spiracula spots strong; 

 baso-pleural small, posterior members usually wanting or reduced to mere 

 trace ; tergal spots present only on thoracic and two front abdominal segments. 

 Length, 8 to 12 mm. at end of stage. 



Third larval stage: Like the preceding, but baso-pleural and tergal spots 

 frequently almost gone. Body-color variable, dull yellow to dull yellow-red, 

 never clear yellow of L. mutitceniata or clear wine-red of L. decemlineata. 

 Length, 8 to 12 mm. at end of stage. 



Pupa: Pupates in ground at depth 2 to 6 inches. Pupa like muUitceniata. 

 Pupal stage lasts 5 to 12 days, on average 9 or 10 days. 



Length of ontogeny: Twenty to thirty-five days. 



Geographical Disteibution. 



In 1906 I gave localities of occurrence. Further investigations have given a 

 range indicated on plate 5, where it is seen to extend northward over the Mexi- 

 can Plateau, up the Eio Grande Valley into New Mexico, and into Arizona 

 towards the Colorado Eiver. I have observed it in all its phases at the follow- 

 ing locations : In the Eio Grande y Lerma Valley at Ocatlan, La Barca, Guada- 

 lajara, Zopopam, Encarnacion, State of Jalisco; in Eio Panuco Valley at San 

 Bartolo, Eio Verde, Cardenas, San Luis Potosi, Espirito Santo, Matehuala, 

 Vinegas, Catorce, State of San Luis Potosi ; Monterey, Montemorelos, State of 

 Nuevo Leon ; Matamoros, Forlon, State of Tamaulipas ; Monclova, San Pedro, 

 Jimulco, State of Coahuila ; Gomez Palacio, Durango, State of Durango ; Aguas 

 Calientes, State of Aguas Calientes; Eincon de Eomos, Zacatecas, Fresnillo, 

 State of Zacatecas; Ojito, Santa Barbara, Parral, Escalon, Jimenes, Sta. 

 Eosalia, Chihuahua, Montezuma, State of Chihuahua; Tucson, Benson, Bowie 

 in Arizona ; Lordsburg, Eincon in New Mexico. 



