2, THE FLORIDA BUGGIST 
brown to brown. Pronotum brown, the posterior portion becoming yellow- 
ish brown in the female. Abdomen dark brown, the venter blackish; con- 
nexivum (male) with a yellowish brown spot on the anterior portions of 
each of the last three abdominal segments and the entire connexivum 
lighter with more prominent markings in the female. 
Described from numerous specimens, collected during the summer of 
1918 near Gainesville, Florida. Type and allotype in my collection. Para- 
types in the Florida Experiment Station, Museum of the University of 
Florida and my collection. The eggs are deposited on floating aquatic 
plants and floating sticks or wood just beneath the surface of the water. 
The species is predaceous and lives in stagnant water. The macropterous 
form is unknown. The insect very closely resembles Velia stagnalis Burm. 
from which it may be distinguished by its darker color, the much more 
prominent tubercles in the pronotum and the much longer antennae. The 
first antennal segment in V. watsoni is much longer than the first antennal 
segment in stagnalis, the first segment in the latter and the second seg- 
ment in the former being equal in length. 
Velia stagnalis Burmeister. Z 
Van Duzee (Cat. Hem. of Amer. North of Mexico) records this species 
from Pennsylvania, District of Columbia, North Carolina and West Indies. 
I have two specimens from Sandusky Bay, Lake Erie (collected by V. R. 
Haber) and four from Rockbridge, Ohio (collected by A. J. Bassinger). 
The Ohio specimens were collected in stagnant water; they agree perfectly 
in form and color with a specimen from District of Columbia that Mr. 
McAtee has kindly presented to me. 
ADDITIONS TO THE THYSANOPTERA OF FLORIDA.—V. 
J. R. WATSON 
A collection of thrips from Mr. A. C. Mason of Miami, contains 
two new species and a new variety as follows: 
57. Dictyothrips floridensis, n. sp. 
General body color dark brown, legs and antennae light brown. Head 
and thorax deeply reticulated. 
Measurements: Total body length 1.00 mm. Head: length 0.10 mm., 
width 0.15 mm.; prothorax: length 0.11, width 0.16 mm.; mesothorax: 
width 0.24 mm.; metathorax: width 0.20 mm.; abdomen: width 0.23 mm.; 
antennae: segment 1, 24; 2, 40; 3, 50; 4, 40; 5,485 6, 58s) 7) Loses 24 
microns; total length 0.267 mm. 
Head 1.5 times as broad as long; cheeks strongly arched, sparsely pilose; 
front with a median ridge, extending well forward, forming a right angled 
projection between the antennae. Bristles: two postocular, one in front of 
each posterior ocellus, and a row of four across the frons in front of the 
anterior ocellus; all short, but with bright-colored conspicuous bases. 
Eyes very large, occupying %3 of both the length and width of the head, 
markedly bulging, sparsely pilose, facets very large. Ocelli very large; 
the posterior pair situated about the middle of the border of the eyes, 
a sr a ane aaceall 
