Aphis

Lagos, Doris M., Puttler, Benjamin, Voegtlin, David J. & Giordano, Rosanna, 2012, A new species of Aphis (Hemiptera: Aphididae) in Missouri on St. John’s Wort, Hypericum kalmianum, and re-description of Aphis hyperici Monell, Zootaxa 3478, pp. 81-92: 91

publication ID

http://doi.org/ 10.5281/zenodo.210015

publication LSID

lsid:zoobank.org:pub:A72AF48B-9A51-4A76-B4E7-7169B3F1F9BF

DOI

http://doi.org/10.5281/zenodo.5632083

persistent identifier

http://treatment.plazi.org/id/BC5087D4-FFFC-FFB3-61F5-5C00C9DEFC1A

treatment provided by

Plazi

scientific name

Aphis
status

 

Key to Aphis   apterous viviparae feeding on Hypericum  

Characters useful to discriminate these species are included in the following morphological key for apterous viviparae, as well as in an online interactive key ( Lagos & Voegtlin 2008). Couplets for species ( A. hypericiphaga   , A. hypericiradicis   , A. pavlovski   and A. chloris   ) were adapted from Blackman & Eastop (2006).

1. Ultimate rostral segment without accessory setae. Antennae five segmented. Abdomen with dorsal sclerites. Waxy black aphid on H. kalmianum   ( Figure 1 View FIGURE 1 , Figure 8 View FIGURE 8 A)........................................................... mizzou   sp.n.

-. Ultimate rostral segment with two or more accessory setae. Antennae six segmented. Abdomen without dorsal sclerites.... 2

2. Siphunculi 0.3–0.7 × length of cauda…..................................................................... 3

-. Siphunculi 0.8–2.5 × length of cauda…..................................................................... 4

3. Cauda with 6–7 setae. Hind coxa, trochanter, cauda and subgenital plate dusky. Siphunculi dark. Body reddish, dorsum cov- ered with wax. ( Figure 5 View FIGURE 5 , Figure 8 View FIGURE 8 B)................................................................ hyperici  

-. Cauda with 12 or more setae. Hind trochanter, cauda, siphunculi, and subgenital plate pale. Body pale yellowish and greenish. Oval wax patches laterally on abdominal and thoracic segments. ( Figure 8 View FIGURE 8 C).......................... hypericiphaga  

4. Dome-like marginal tubercles on all abdominal segments….................................................... 5

-. Dome-like marginal tubercles restricted to abdominal tergites 1 and 7 ….......................................... 6

5. Antenna VI Pt/Base 2.2–2.8. Marginal tubercles on abdominal tergites 1–4 and 7 ........................ hypericiradicis  

-. Antenna VI Pt/Base 1.5–1.7. Marginal tubercles on all abdominal tergites.............................. …. pavlovski  

6. Cauda dark, with 4–7 setae. Antenna VI Pt/Base 1.6–2.1 …............................................... chloris  

-. Cauda pale, with 5–7 setae. Antenna VI Pt/Base 2.4–3.1 …............................................... gossypii