82 APHIDS OF THE ROCKY MOUNTAIN REGION 
Collection. On sedge (probably Scirpus sp.). Colorado: Skyway, Grand 
Mesa (Mesa Co.). A single apterous vivipara Aug. 19; rare. . 
This specimen differs from Baker’s cotypes (oviparae) in longer antenna 
and hind tibia and smaller body but agrees with the produced, acute vertex 
and other characters. The differences may be due to the type specimens being 
oviparae instead of viviparae. 
Cotypes. U.S.N.M. 
[Genotype Saltusaphis scirpa Theobald] 
h ow —f-anal plate 
( } A ‘ 
Fig. 86. Saltusaphis scirpa 
Saltusaphis scirpa Theobald, 1915a:138; Gillette and Palmer, 1931:906. 
Apterous Vivipara. Yellowish, with dusky vittae on head and speckles on abdomen; legs 
mostly yellowish; cornicle dusky. Body 2-2.5; abdomen hardly broader than thorax; hind tibia 
.65; hind tarsal II .15; antenna 2; rostrum obtuse, attaining between lst and 2d coxae. Imbri- 
cations on antenna denticulate. Hairs flabellate on body except on vertex, tergite VIII, cauda 
and anal plate. 
Alate Vivipara. Same as apterous vivipara except sensoria on III 15-17 in a single row 
on proximal three-fifths. Fore wing with media twice-forked. Hind wing with cubitus obsolete. 
Host. Leaves of Scirpus sp.; with jumping habits. (Not recorded from 
region). 
Data for above description and drawings were obtained from description 
by Theobald and from paratypes. 
Type. British Museum. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Saltusaphis virginica Baker 
Body Hairs 
Fig. 87. Saltusaphis virginica 
Saltusaphis virginica Baker, 1917a:7. 
Apterous Summer Vivipara. (Mounted in balsam). immaculate; dusky only on tarsi, 
antenna beyond proximal portion of III and extreme tip of rostrum. Body length 2.15-2.2; 
across eyes .45; antenna 1.80; hind tibia .65-.70; rostrum attaining beyond lst coxae. Hairs on 
body flattened mushroom-shaped, minute and numerous; on vertex spinelike and pointed. 
Tergite VIII somewhat indented; anal plate divided; cauda knobbed. 
Collections. On sedge. (Scirpus sp.) Utah: Logan. Apterous viviparae Sept. 
2 orarel 
This species is peculiar in the mushroom-shaped hairs on the body of the 
apterous vivipara. 
Type. U.S.N.M. 
Genus Thripsaphis Gillette 
Gillette, 1917c:193; Baker, 1920a:30; Gillette and Palmer, 1931:909. 
Characters. Body very long, flat and slender. Frontal and ocular tubercles 
not evident. Antenna much shorter than body, six-segmented, secondary sen- 
soria round, permanent sensoria with cilia. Restrum very broad and short. 
Cornicle mere ring on abdominal VI. Cauda knobbed; anal plate divided in all 
