MACROMIA 167 
quently choosing the same twig for a resting place. It is probably that during 
the day these same individuals seek insect food at a considerable elevation, and 
hence escape observation. 
Williamson further says (I, c, p. 386) that when this dragonfly is in 
flight one gets the ‘“‘impression of a black insect largely yellow at apex 
of the abdomen.” 
122. Macromia allegheniensis Williamson 
Wmsn. ’09, p. 376: Mtk. Cat. p. 120. 
Length 70 mm. Expanse 98 mm. Va., Pa., Ky. 
Differs but little from the preceding species, the pale markings of the ab- 
domen being a little more extensive, especially the cross stripes on abdominal 
segments 2 and 8; on 2 it is continuous across the middorsal line, and on 8 it 
extends lower down on the sides, in the male, reaching the lateral margin. 
123. Macromia taeniolata Rambur 
Ramb. ’42, p. 139: Mtk. Cat. p. 121: Wlsn. 12, p. 193: Garm. ’27, p. 204. 
Length 90 mm.. Expanse 122 mm. N. Y. and Wis. to Kan. and Fla. 
This is the largest species of the genus. The face is brownish with the middle 
of the labrum and all of the clypeus pale. The vertex is metallic blue and hairy, 
double pointed and peaked. The two pale stripes of the front of the thorax are 
rather narrow and abbreviated and taper upward, reaching a little more than 
half way to the crest. The pair of yellow dashes on the crest a little overspread 
its front margin. Legs black. Wings hyaline with brown costa and stigma. 
The pale markings of the dorsum of the abdomen are separated by black on the 
median line except on the 7th segment, where the narrow yellowish line is con- 
tinuous. its ends curving forward on the sides of the segment. Segments 9 and 10 
and the appendages are black. 
Wilson (’09) found it in late May and in July along streams in damp 
woods. It is a species of very swift and long sustained flight, and is very 
difficult to capture. 
124. Macromia wabashensis Williamson 
Wmen. ’09, p. 374: Mtk. Cat. p. 121. 
Length 74 mm. Expanse 102 mm. Ind. 
“Very similar to taeniolata, but may be recognized by the following charac- 
ters: Costa (and antenodals and postnodals) yellow or yellowish as far as the 
tips of the wings; labrum less obscured, face paler and brighter colored; lateral 
spots on frons distinct; dorsal abdominal spot on 8 similar in shape and extent, 
relative to the transverse carina, to the spot on 7. Wings tinged with pale yellow- 
ish, or hyaline, the extreme apex frequently slightly fumose.’”—From Wmsn. ’09, 
p. 374. 
