SUBFAMILY APHINAE 239 
Amphorophora nervata (Gillette) 
The Rose and Bearberry Aphid 
Nectarophora sp. Cowen (in Gillette and Baker) 1895:124, line 24. 
Rhopalosiphum nervatum Gillette, 1908b:63. 
Amphorophora nervata, Mason, 1925:43; Gillette and Palmer, 1934:139. 
Fundatrix. Same as apterous summer vivipara except measurements of antenna and cor- 
nicle, as shown in figure. 
Alate Vivipara. Head and thorax brown; abdomen pale green; antenna black except I, 
II and base of III; tibiae dusky, cauda and cornicle pale proximally, dusky distally; veins 
of wings black. Body length 2.10; across eyes .40; antenna 2.5-2.9; hind tibia 1.45; rostrum 
attaining 2d coxa. Hairs blunt, slightly capitate; not evident on body. Cauda with slight 
neck then tapering to a point, bearing 2 pairs of lateral hairs and one dorsal one. 
ES 
45~ 50, 
(45°50) ( oe 
673-76) 
. 644.48) 
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Fig. 282. Amphorophora nervata 
Apterous Summer Vivipara. Pale green; antenna dusky; cauda, cornicle and hind tibia 
pale, with dusky tips. Hairs on vertex .03 long. Otherwise as in alate vivipara. 
Ovipara. Apterous. Head and prothorax light orange-green, remainder of body dark or 
dusky green, lighter green on abdominal V and frequently on posterior abdominal segments. 
In some the entire body is pink; all appendages pale with dusky on tips of antennal segments, 
cornicle and tibiae. Measurements as in summer vivipara. 
Male. Alate. Head and thorax yellowish brown; abdomen pale yellow, often with traces 
of yellowish brown dorsal bands; cornicle and appendages dusky to blackish. Body length 
1.40; cornicle .55; other measurements as in alate vivipara. Sensoria slightly tuberculate. 
Egg. Newly laid, bright green; later, black; shining. Size .71 by .33. 
Collections.. On leaves and twigs of cultivated rose and Arctostaphylos 
uva-ursi.* Throughout region. Fundatrices April 6 to May 12, apterous vivi- 
parae May 12 to Oct. 13, alate viviparae May 12 to Oct. 8, sexuales Oct. 17; 
common. 
Type. U.S.N.M., No. 26855. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Chief Distinguishing Characters. Slightly swollen cornicle, absence of dis- 
tinct reticulation on cornicle and presence of distinct imbrications on entire 
length, short rostral IV-+V (.11, usually shorter than hind tarsal II), presence 
of sensoria on IV in male and absence of sensoria on antenna of aptera. 
A. vaccinii Theobald is very close to this species and may prove to be a 
synonym. 
Amphorophora nigricornis Knowlton 
Amphorophora nigricornis Knowlton, 1927a:185; Knowlton and Allen, 1945a:112. 
(Somme |W Ors reerenae 
4 ‘08") 84 - 1.10 02 or 
Fig. 283. Amphorophora nigricornis 
*No transfer tests have been done nor migration observations made with this host. 
Determined on apparent identity of structure only. 
