C. H. TYLER TOWNSEND — BIOGEOGRAPHY OF MEXICO, ETC. 51 
Guaymas and San Lnis Potosi, was fonnd to extend to the Isthmus in 
range. It is an arid or Lower Sonoran species. A large new species of 
Lecanium was found, L. chilaspidis Ckll. n. sp., which belongs to a typi- 
cally Neotropical series and has found its way into and adapted itself to 
the Lower Sonoran. A new Aspidiotus, of the rapax and ulmi group; 
two other *Uew species of Aspidiotus ; and a Mytilaspis near citricola , 
complete the scales found. A complete Locality and Food-plant Cata- 
logue of Mexican Coccidae, including to date 80 species, has been pre- 
pared by the writer and will soon be published. In it will appear all 
the species that have here been mentioned, with distribution in and out 
of Mexico, and other notes of interest. 
NEW MEXICO. 
In October, 1895, the trip was made by wagon from Las Cruces to 
the northern part of the Sacramento Mountains, and on north to the 
Capitan Mountains. The start was made October 9, and the route was 
by way of Organ, Parker’s Well, Lunas Well (Pelman’s), Whitewater, 
Tularosa, Mescalero, Upper Ruidoso Store, Dowling’s Mill (Wingfield’s), 
Gilmore’s ranch, Austen’s ranch, Fort Stanton, and by way of a dried 
salt pond known as the Salado, to the Capitan Mountains. In Septem- 
ber and October, 1896, the same trip was made by wagon as far as Mes- 
calero, returning from there to Las Cruces, October 7. 
SACRAMENTO AND WHITE MOUNTAIN DISTRICT.— A first 
paper on the Diptera of the Sacramento Mountain region, including 
White Mountain which lies at the northwestern end of the range, has 
already been published in the Annals and Magazine of N. H. (London), 
Feb. 1897, pp. 138-149. A general idea of the topography is given in 
that paper, hut the faunal aspects are not treated. The reader is re- 
ferred to that paper, however, for many data of interest in connection 
with what is given here. 
Collections were made in Diptera alone on the first trip. On the 
second trip, Professor Cockerell accompanied me. Diptera, bees, scale- 
insects, and locusts were collected especially, as well as some other in- 
sects. The locusts form a good representation of the acridiid fauna, and 
with the scales were sent to the United States Department of Agricul- 
ture, the trip having been made under the auspices of the Department. 
A paper on the new scale-insects and bees was published by Professor 
Cockerell almost immediately on the return from the trip (Joum. N. Y. 
Ent. Soc. Dec. 1896, pp. 201-207). The locusts will he determined later 
by the Department. 
