33 
low. Shape nearly circular. Lobes dark brown, in strong contrast, 
appearing purple edged in some lights; margin cephalad of lobes also 
appearing purple. Three pairs of lobes, all low, the median ones largest, 
rounded, broad, not contiguous; the other two pairs rudimentary. Three 
pairs of spine-like plates, i. e., a pair between median lobes and one on 
each side adjacent to second and third lobes. These plates are con- 
spicuous, sharp, much longer than the lobes. Very small, sac-like inci- 
sions between the lobes. A transversely elongate pore beneath space 
between median lobes and one beneath each second and third lobe. 
Anal orifice very far posterior, less than its length from hind end. No 
grouped ventral glands, but as the specimens have neither eggs nor 
larvee they are probably not fully mature. 
Habitat.—Ciudad Porfirio Diaz, Coahuila, Mexico, November 25, 1894, 
on a Yucca, doubtfully referred to Y. australis. (Townsend; Div. Ent. 
No. 6465.) Closely allied to A. bowreyi Ckll., which occurs on Agave. 
Aspidiotus persee Comst. 
Mr. Arthur de Cima, United States consul at Mazatlan, has been 
kind enough to send me a piece of cocoanut palm leaf from his garden. 
On it I find two examples only of an Aspidiotus, one too young to do 
anything with, the other just forming the true scale. Except that the 
plates are perhaps less branched, the insect agrees with A. persew, and 
I can do nothing but refer it thereto. 
The following is a description of the specimen: 
Female scale-—Diameter about 1 mm., circular, very slightly convex, 
opaque, reddish brown with the central portion blackish, exuvie 
covered. True scale just forming, whitish, but would no doubt become 
darker with maturity. 
Adult female.—Pale orange yellow, subcircular or very broadly pyri- 
form; three pairs of distinct lobes and three others rudimentary. Median 
lobes small, rounded at ends, parallel sided, nearly as far apart as the 
width of one; second and third lobes oblique broad, low, finely serrate 
on their margins; third lobe longer than second, and with more serre; 
fourth lobe a little longer than third, very broad and low, with its margin 
also serrate or finely crenulate; fifth lobe about as long as third, very 
low. Beyond this, three or four small serrated prominences indicate other 
rudimetary lobes. A pair of short, spine-like plates between median 
lobes, a pair between median and second, and also between second and 
third and third and fourth, those between second and third being some- 
what largestof any. Long, sac-like, tubular glands between the lobes, 
or rather at their bases, those cephalad of second and third lobes being 
the longest. Numerous transversely oval pores as usual in some species. 
Four groups of ventral glands, caudolaterals of seven orifices, cephal- 
olaterals of eleven. Anal orifice moderately large, pyriform, slightly 
caudad of level of caudolateral groups of glands, Surface finely striate, 
13448—No, 43 
