77 
This Species was figured by Glover in his Cotton Insects, and has 
been treated recently by Professor Morgan. Specimens have been 
examined from Baton Rouge, La. 
Stig-maeus Koch. — CJebersicht «lcs Arachnideiiyystems, III, |>. 5.S, 1842. 
This genus differs much from Tetranychus in structure, bul is closely 
allied in habits, the species living in colonies on leaves. The anterior 
and posterior pairs of legs are more widely separated than in Tetrany- 
chus; the body is more elongate and is usually more or less constricted 
near the middle; there are no rows of long bristles above; the tarsus 
ends "m two equal claws, which in our species are deeply cleft. The 
mandibles in our species appear to be extremely long and styliform. 
The palpi seems to be simple, the last joint very slender. But one 
species has been observed in our country. 
Stigmaeus floridanus n. Bp. 
Body elongate, more than twice as large as broad, blunt-pointed at 
each end. constricted somewhat before the middle, the posterior part 
rather broader than the anterior, constricted slightly between the III 
and IV legs, four short 
curved bristles near apex, 
one on each anterior side of 
the posterior part and one 
on each side near theapica 
third of the anterior part. 
The legs are short and 
stout, scarcely as long as 
the width of body, the an- 
terior pairs rather longer 
than the hind pairs; the 
tarsus ends in a pair of dou- 
ble claws, the outer branch / , 
Longer and less curved 
than the inner branch. 
Living in colonies upon 
the bases of the imbricated 
leaves of the pineapple in 
Florida. A speciesof con- 
siderable economic impor- 
pdttance owing to the fact thai its punctures giv< 
Pig 
Saguunu fioridaDuu: mite, mouth 
enlarged (original). 
and ckvArB— 
fungi access to the tii 
•ertain desl ructive 
tue of the leaf . In Australia Mr. II. Tryon has 
recorded a quite different mite affecting the pineapples in that colony. 
He claim- that it often carries the spores of the fungous disease, He 
calls the mite Tarsonernus ananas, 1 Professor Rolfs has published 1 
on the habits of this Stigma us and the damage it leads to in Florida. 
Queonslaml Agric. Jour., •"• ilSi»si, N... ii. pp. t.'»s 
Bul No. 60, Kla. Agric Exp. Bta., May, L899. 
