SUMMER NUMBER 3 
anterior facing forward. Antennae 2.5 times as long as the head; seg- 
ments 1 and 2 dark brown, concolorous with the head, and 3 and 4 yellow- 
ish brown, others light brown; 2 much wider than the others, 6 longest; 
sparsely provided with bristles. 
Mouth cone short and sharp pointed. 
Prothorax about the size of the head, sides convex and roughened with 
rather large papillae and bearing a few short, recurved bristles. <A 
rather long and stout bristle on each posterior angle. 
Mesothorax abruptly widened (the widest part of the insect), sides very 
convex and set with papillae and short bristles like the prothorax. 
Mesothorax much narrower, sides nearly straight, slightly diverging 
posteriorly. Legs long and slender, light brown, distal part of femora and 
proximal part of tibiae darker; tarsi and distal part of tibiae very light 
brownish-yellow; provided with numerous slender bristles. : 
Wings reaching the tip of the abdomen; membrane slender, dark 
brown, except the extreme base which is clear, and clothed with numerous 
short hairs. Anterior margin provided with 14 exceedingly long and stout 
spines with colorless, dilated tips and arising from thickened bases; an- 
terior vein with 11 spines nearly as large; posterior vein with none, scale 
with two. Veins inconspicuous. Marginal fringe sparse, lacking from the 
basal half and the extreme tip of costal margin. 
Abdomen rather abruptly widened to the third or fourth segment and 
from there gradually narrowed to the tip. Spines on the posterior seg- 
ments moderately long. 
Described from many females taken on young guava plants in a green- 
house at Miami by Mr. A. C. Mason on June 10. Type in the-author’s 
collection. 
Male not seen. 
- Related to D. reticulata but differing in many characters. 
58. Cephalothrips elongata, n. sp. 
Head, thorax, and tube dark reddish brown; abdomen, hind and middle 
legs and fore tibiae and tarsi and antennal segments 2-5 pale yellowish 
brown. Base of fore femora and antennal segmental, 6, 7 and 8 darker. 
Measurements: Total body length 1.9 mm.; Head: length 0.224 mm., 
width 0.129 mm.; prothorax: length 0.147, width 0.240 mm.; mesothorax: 
0.230 mm.; abdomen 0.240 mm.; tube: length 0.114 mm., width at base 
0.058 mm., at apex 0.032 mm. Antennae: segment 1, 40; 2, 45; 3, 53; 4, 56; 
_ 5, 45; 6, 40; 7, 45; 8, 27 microns; total length 0.33 mm. 
Head nearly twice as long as wide; cheeks nearly straight and parallel 
(converging slightly posteriorly) for the first % of their length and then 
slightly constricted. Postocular bristles long and slender but pale, with 
colorless dilated tips; a small bristle behind each posterior ocellus and 
another near posterior median corner of each eye. Vortex smooth. Eyes 
medium sized, elongated obliquely inward and backward on dorsal surface, 
dark, not protruding. Ocelli large but pale, posterior ones situated near 
the middle margin of eye, anterior directed forward.. Antennae nearly 1.5 
times as long as the head. Segments 2-5 quite uniform in size and color, 
bristles short and colorless, very inconspicuous. Mouth cone very short, not 
reaching the middle of prothorax. 
Prothorax triangular, posterior angles rounded and bearing each a pair 
