WINTER NUMBER 35 
(586) O. selebrosus Casey. On cotton, a new host plant. © 
(671) Auleutes cruralis Lec. Taken in a damp meadow 
along Hog Town Creek near Gainesville. Apparently the first 
record from Florida. 
(748) Conotrachelus coronatus Lec. Collected in the same 
locality as the last. Described from Enterprise, Fla., and here- 
tofore known only from there and Vero. 
(760) Chalcodermus collaris Horn. Taken from corn at 
Gainesville by H. L. Dozier Aug. 16, 1916, and on cotton at 
Branford, Fla., by Mr. J. F. L. Lindsey. Both of these are new 
hosts. This species looks like its near relative, the cowpea 
pod-weevil, but the surface of the thorax is covered with a net- 
work of ridges instead of sunken dots. 
J. R. WATSON. | 
NEW THYSANOPTERA FROM FLORIDA—VIII 
J. R. WATSON 
(Continued from page 30) 
KEY TO NORTH AMERICAN SPECIES OF HETEROTHRIPS 
1. Antennae with ten segments.......................--------- H. decacornis Crawford. 
II. Antennae with nine segments. | 
a. Without circles of distal sensoria on antennal segment 4. 
H. salicis Shull. 
aa. Segment 4 of antennae with distal circles of sensoria. 
b. At least part of the abdominal tergites bordered with scales 
with fringed margins. 
ec. Abdomen not pubescent. 
d. Prothorax twice as long as the head. U. S. 
H. arisaemae Hood. 
dd. Prothorax not twice as long as head. W. I. 
H. borinquen Hood. 
cc. Abdomen more or less pubescent. 
d. Abdomen sparsely pubescent. 
e. Whole antennae more or less yellow. Panama. 
H. flavicornis Hood. 
ee. Only segment 3 always yellow........... H. lyoniae Hood. 
dd. Abdomen more densely pubescent. 
e. Prothorax sculptured with anastomoxing lines. West- 
(Shed foe ee ee See ENE er Be H. pectinifer Hood. 
ee. Prothorax free of sculpture except for a few lines. 
(H. azaliae Hood) H. aesculi Watson. 
bb. Abdominal tergites fringed posteriorly with hairs which are 
not at all coalesced into scales. Abdomen closely pubescent. 
