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	https://doi.org/10.5281/zenodo.210015
DOI	https://doi.org/10.5281/zenodo.5632083
persistent identifier	https://treatment.plazi.org/id/BC5087D4-FFFC-FFB3-61F5-5C00C9DEFC1A
treatment provided by	Plazi (2016-04-13 04:47:37, last updated 2024-11-27 19:01:03)
scientific name	Aphis
status

Treatment

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 View in CoL ( 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

References

Blackman, R. L. & Eastop, V. F. (2006) Aphids on the World's Herbaceous Plants and Shrubs. Host Lists and Keys. Vol. 1. Wiley, New York. 1,025 pp.

Lagos, D. M. & Voegtlin, D. J. (2008) An Interactive Key to Aphis in Midwestern of U. S. A. Available from http: // www. tinyurl. com / aphiskey (accessed 13 March 2012)

Figures

FIGURE 1. Apterous vivipara of A. mizzou (INHS: 511,101 collection number). (A) body, (B) eight tergite abdominal, (C) first marginal tubercle and hind coxa, (D) sub-genital plate, (E) cauda, (F) ultimate rostral segment, (G) siphunculus, (H) seventh marginal tubercle.

FIGURE 5. Apterous vivipara of A. hyperici (A) body, (B) second and third antennal segments, (C) ultimate rostral segment, (D) first abdominal segment without tubercle (E) cauda, (F) siphunculus and seventh marginal tubercle, (G) hind tibia and tarsus.

FIGURE 8. Colonies of aphids on Hypericum spp. A. A. mizzou n. sp. on H. kalmianum, B. A. hyperici on H. kalmianum (photos by C. J. Starbuck), C. A. hypericiphaga on H. perforatum (photo by H. Kim).