1926 ] Descriptions of Four New Species of Eustidus 
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DESCRIPTIONS OF FOUR NEW SPECIES OF EUSTICTUS 
(HEMIPTERA, MIRID,E)y 
By Harry H. Knight, 
Ames, Iowa. 
Eustictus ainsliei n. sp. 
This species runs to venatorius Van. D., in my key to the 
species (Hem. Conn., 1923, p. 481), but is distinguished by the 
long hairs on antennal segment I, by the shorter length of seg- 
ment I as compared with width of head, by the long bristle-like 
hairs on pronotum, and long hairs on hind femora instead of 
spines. 
cf. Length 6.4 mm., width 2.4 mm. Head: width 1.32 
mm., vertex .23 mm. Rostrum, length 3 mm., extending upon 
fourth ventral segment. Antennae: segment I, length .98 mm., 
thickness .17 mm., set with erect bristle-like hairs, length of 
several hairs greater than diameter of segment, mottled with 
black and white; II, 2.7 mm., brownish black with a few fine 
pale marks evident; III, 1.4 mm., with more pale than segment 
II; IV, 1.35 mm., brownish black. Pronotum: length 1.23 
mm., width at base 2.14 mm. 
Coloration very suggestive of venatorius, but more broadly 
white on hemelytra, basal half of pronotum, and front of head; 
calli black, with five blackish rays extending back half way to 
basal margin. Dorsum clothed with erect long hairs, distinctly 
bristle-like on pronotum; apical half of femora and basal half of 
hind tibiae set with long erect hairs, the hind femora without true 
spines such as are found in venatorius. 
Holotype: d April 14, Orlando, Florida (G. G. Ainslie), 
collected at light; author’s collection. Named after the col- 
lector, Mr. G. G. Ainslie who kindly presented the specimen. 
Contribution from the Department of Zoology and Entomology, Iowa 
State College, Ames, Iowa. 
