138 ENTOMOLOGICAL SOCIETY 
the other toward tip; one long hair on each shoulder; on the anterior 
part of dorsum above second legs is an oblique dark mark. Venter with 
a groove each side reaching from stigmata obliquely backward and unit- 
ing behind anal opening and just before tip. The genital area of female 
is between the second and third pairs of legs; it is longer than broad, 
pointed on each side, rounded behind, almost truncate in front, and con- 
tains a diamond-shaped opening. There is a transverse ridge between 
coxae ii. Leg i slender, ending in a number of stiff hairs; other legs 
larger and subequal in size. Palpi rather short. 
Length .75 mm. 
Taken f rom an Histerid beetle (Hololepta sp.) at Washington, 
D. C., and Indianapolis, Indiana (Blatchley). This species is 
figured on page 61 of my "Treatise on Acarina." 
Seius quadripilis n. sp. 
Pale yellowish. Body broadly oval. Dorsum smooth, with four long 
bristles, one on each shoulder, and a submedian pair behind, also a 
pair of much smaller bristles on the anterior margin over the mouth - 
parts. Each long bristle about one-third the length of the body. Legs 
short and well forward, with only a few hairs, tarsi very slender. Peri- 
treme long, reaching forward in front of coxae ii. Sternal shield in male 
very broad, in fact as broad as long, and united behind to the large ven- 
tral shield; in the female there is a quadrate genital shield, about as 
broad as the sternal, and just behind it is the large subtriangular anal 
shield, also as broad as sternal shield. Behind coxa iv there are on 
each side two elongate metapodia. 
Length .4 mm. 
On orange leaves, Eustis, Florida (Swingle). It is figured 
on page 58 of the "Treatise." 
Lcelaps mexicanus n. sp. 
Pale yellowish. Body elliptical, a little narrowed in front, barely 
tapering behind. Dorsum smooth, with about sixty stout short bristles, 
rather broader at tip than on base, and serrate on the apical half of one 
side. These bristles are arranged in about six longitudinal rows; the 
two terminal bristles are longer than the others. The legs a re quite short 
leg iv about as long as the body, the oth ers shorter, all with short, simple 
hairs. Peritreme long and slender. Ventral plate of female broken 
only at coxae iv. On the anal plate are three bristles each side of the 
anus, a pair behind, and a median one at tip. 
Length .5 mm. 
From Guanajuato, Mexico (Duges) ; with some Coccid ma- 
terial; 12 Aug., 1889. This species is figured on page 58 of 
the "Treatise." 
