18 THE FLORIDA ENTOMOLOGIST 
I am merely writing about this subject thinking that it will be 
of interest to the readers of The Entomologist. Two other spe- 
cies of luminous Elaterids occur in the United States, one in 
Arizona and the other in Texas, while Florida possesses two spe- 
cles. Very truly yours, 
G. F. MOZNETTE. 
(Miami, Fla., Aug 1920.) 
NEW THYSANOPTERA FROM FLORIDA—VII 
J. R. WATSON 
(Continued from page 13) 
60. Haplothrips gracilis n. sp. 
Length about 1.4 mm. Color brown with much orange hypodermal pig- 
mentation; head dark brown; fore tibiae and all tarsi yellowish brown. 
Measurements: Head, length 0.24 mm., width 0.12; prothorax, length 
0.115, width including coxae, 0.20 mm.; pterothorax, width 0.20 mm.; abdo- 
men width, 0.20 mm.; tube length 0.08 mm., width at base 0.045 mm., at 
apex 0.027 mm. 
Antennae, segment .... Lek sa 
Length in microns............ 3 37 | au | Soles 
Width in miecrons.........- 2B ha 2 he ee ee 20 18\5 |e 
Total length 0.25 mm. 
Head: Length about % longer than wide, cheeks nearly straight, slight- 
ly converging posteriorly, postocular bristles dilated into a small head, rath- 
er shorter than the eyes. Hyes small, occupying about one-third the length 
of the head, rounded, not protuding, not produced on the ventral surface. 
Posterior ocelli opposite the anterior one-third of the eyes. Antennae near- 
ly twice as long as the head. Segments all short and thick; 2-6 about equal 
in length; 1 and base and inner border of 2 concolorous with the head; 
remainder of 2, and 3 yellowish brown; 4 darker; 5-8 dark brown. Mouth 
Cone rounded at the apex. 
Prothorax nearly as long as head and nearly twice as wide as long, a 
long and short bristle on each posterior angle and a conspicuous one in the 
middle of each side, all capitate. Pterothorax about as wide as prothorax. 
Wing membrane with a brown area at the extreme base, plainly narrowed 
in the middle. Fringing hairs sparse but long, no interlocated ones. Legs 
rather short, fore tibiae slightly enlarged, tarsi devoid of teeth. 
Abdomen long and slender, 4.5 times as long as broad, prominently band- 
ed with dark brown and orange, sparsely provided with bristles some of 
which are capitate and some pointed. Tube about half as long as the head. 
Described from a single ? taken from ironweed (Vernonia) at Gaines- 
ville Aug. 7, 1919. 
The species is remarkably close to H. bellus Hood and Williams in most 
characters but is longer (smaller in most measurements except the abdo- 
men); the eyes are not produced on the ventral side; and the intermediate 
segments are shorter. 
