13 
peaches, figs, apricots, pomegranates, and quinces, but found no scales 
whatever on any of these in this region. At San Ignacio, which is six 
miles north of Magdalena and on the railroad also, I could find nothing 
on orange, lime, etc., though leery a purehasi abounded on the same at 
Magdalena. Olives in Hermosillo had no scales. 
In Chihuahua nothing was found on peaches or pears. Also noth 
ing on shrub called "trueno," which was abundantly infested farther 
south. Some scales were found on pomegranate at San Luis Fotosi 
and Monterey, but nowhere else on that plant. No scales were found 
on fig except in Monterey. 
No scales were found anywhere m Mexico on peach, pear, apricot, 
plum, apple, quince, or grape. 
LIST OF SCALE INSECTS, ARRANGED BY HOST PLANTS. 
Agave (yellow variegated). — Pseudococcus yuccce. Guadalajara. 
Amaryllis. — Pseudococcus yuccas. Aguas Calientes. 
Avocate (avocado pear). — Aspidiotus n. sp. San Luis Potosi. 
Bagote. — Aspidiotus n. sp.? Hermosillo. 
Banana. — Pseudococcus yucca: Guadalajara, Mexico City (seen in 1892). 
Bromelia pinguin. — Diaspis boisduvalii. Alta Mira (Tamauhpas). 
Caladium. — Pseudococcus yuccce, Guadalajara. 
Catalpa. — Ceroplaslcs mexicanus; Lecanium (dew, Lecanium sp. (?); Pseudococcus 
yuccce. San Luis Potosi. 
Ciierimoya. — Pseudococcus yuccce. San Louis Potosi. 
Fig. — Lecanium oleW ; Pseudococcus yuccce. Monterey. 
Fitolaca. — Lecanium liesperidum; Pulvinaria n. sp. ? Monterey. 
Guava. — Lecanium hesperidum ; Lecanium olew. Nuevo Laredo. 
Hibiscus floridanus (red - flowering- tropical shrub). — Ceroplastes ceriferus: 
Cuautla. Conchaspis angrwci var. hibisci: Tampico. 
Hymenoclea monogyra. (gecota). — Orthezia sonorensis. San Ignacio, Sonora. 
Lantana sp. — Pseudococcus yuccw. San Luis Potosi. 
Marguerita. — Lecanium olew. Aguas Calientes. 
Mimosa. — Lecanium imbricatum. Alta Mira. 
Oleander. — Aspidiotus nerii: Aguas Calientes, Chihuahua. Lecanium olew: 
Aguas Calientes. 
Olive. — Aspidiotus nerii. Chihuahua. 
Orange, lime, etc. (citrus fruits). — Icerya purehasi: Guaymas, Hermosillo, Mag- 
dalena, Victoria, Monterey. Aspidiotus jicus : Tampico, Matamoras. Aspidiotus artic- 
ulatus: Tampico. Aspidiotus scutiformis: Victoria, Monterey. Mytilaspis gloveri : 
Tampico, Matamoras. Chionaspis citri: Tampico. Orthezia iusignis var. : Aguas Cal- 
ientes, Guadalajara. Lecanium hesperidum : San Luis Potosi, Chihuahua, Tampico. 
Pseudococcus yuccw : San Luis Potosi, Guadalajara, Tlaltizapan, Tampico. 
Palo dulce. — Aspidiotus Jicus ; Aspidiotus nerii. Chihuahua. 
Pelargonium. — Lecanium olew ; Pseudococcus yuccw. Aguas Calieutes. 
Pomegranate. — Aspidiotus scutiformis : Monterey. Pseudococcus yuccw : San Luis 
Potosi. 
Rose. — Aspidiotus nerii: Chihuahua. Aspidiotus n. sp.?: Monterey. Aulacaspis 
rosw: Chihuahua. Lecanium hesperidum : Nuevo Laredo. 
Tecoma stans. — Ceroplastes n. sp. ? Guaymas. 
Trueno (lilac-like shrub). — Aspidiotus nerii: Aguas Calientes, San Luis Potosi. 
Aspidiotus nigropunctatus ; San Luis Potosi. 
LIBRARY 
STATE Pl-ANT BOA ^ 
