Valid Names Results
Abrococcus Zheng & Wu, 2023 (
Qinococcidae)
Nomenclatural History
- Abrococcus
Zheng & Wu
2023a: 355.
Type species: Abrococcus cunninghamia Zheng & Wu
by original designation
.
accepted valid name
Remarks
- Systematics: Abrococcus can be recognized as a member of Qinococcidae because it has the following
characters. The first-instar nymph has: (i) 7-segmented antennae; (ii) claw with 1 denticle. The second- and thirdinstar nymphs are: (iii) cyst-like, legs lacking and antennae reduced, plate-like; (iv) have simple pores and multilocular disc pores present, with sieve-like multilocular disc pores present in the atria of the developed abdominal spiracles. The adult female has (v) 10-segmented antennae; (vi) vulva opening oriented longitudinally; (vii) tibia with a tuft of long setae on distal end; (viii) claw with 2 denticles. The wing of adult male has (ix) a club-shaped pterostigma (Ptst), media forming clear lines, branching at middle as M1+2 and M3+4, cubitus anterior (CuA), cubitus posterior (CuP) and anal fold (af) present, and radial sector (Rs) weak.
The adult female of Abrococcus is similar to that of Neogreenia MacGillivray in having developed legs, 10-segmented antennae, antennal pedicel with 3 campaniform sensilla, each tibia with a tuft of long setae on distal end; and 2 small cicatrices. It differs from the latter in having (character states in Neogreenia in parentheses): (i) anteriormost 5 pairs of abdominal spiracles developed, posteriormost 3 pairs atrophied, and all of abdominal spiracles with sieve-like multilocular disc pores in atrium (anteriormost 6 pairs of abdominal spiracles developed,
posteriormost 2 pairs atrophied, and atrophied abdominal spiracles without sieve-like multilocular disc pores in atrium); and (ii) small simple pores present ventrally on the osteriormost 5 segments of abdomen (simple pores only present on segment III of abdomen); and (iii) multilocular disc pores each with 2 central pores, absent (present). Zheng & Wu, 2023a)
- Structure: Body elongate. Antennae each 10 segmented, located close together on apex of head. Clypeolabral shield and labium present. Legs developed, tibia with a tuft of long setae on distal end, claw with 2 denticles. All spiracles with pores in atrium; abdominal spiracles numbering 8 pairs, with anteriormost 5 pairs developed and posteriormost 3 pairs atrophied. Anal ring simple. Vulva opening oriented longitudinally. Pores of several types present, including simple pores, and multilocular pores each with 3–5 central loculi. (Zheng & Wu, 2023a)
- General Remarks: Description and illustration in Zheng & Wu, 2023a.
Keys
- ZhengWu2023a: pp.367
(
Adult (F)
First instar
)
[genera of Qinococcidae]
Associated References
- ZhengWu2023a:
description, diagnosis, distribution, host, nymph, taxonomy, pp.
1 Species
