Chrysomphalus

Smith-Pardo, Allan H., Evans, Gregory A. & Dooley, John W., 2012, A review of the genus Chrysomphalus Ashmead (Hemiptera: Coccoidea: Diaspididae) with descriptions of a new species and a new, related genus, Zootaxa 3570, pp. 1-24 : 5-6

publication ID

https://doi.org/ 10.5281/zenodo.282977

publication LSID

lsid:zoobank.org:pub:68A889B1-51C1-40B2-A264-DE8AE782B94C

DOI

https://doi.org/10.5281/zenodo.6179506

persistent identifier

https://treatment.plazi.org/id/0382231A-FFC4-FFBF-1398-FEB4FA78FAFA

treatment provided by

Plazi

scientific name

Chrysomphalus
status

 

Key to the species of the genus Chrysomphalus View in CoL View at ENA based on adult females

1a. Perivulvar pores absent (or with only 1 pair in some individuals of C. variabilis View in CoL )................................ 2

1b. Perivulvar pores present............................................................................. 7

2a (1a). Prosoma heavily sclerotized; paraphysis between L2 and L3 with a double apex; perivulvar pores absent or with only 1 pair; only known on Santalum View in CoL in Australia..................................... C. variabilis McKenzie View in CoL (in part)

2b. Prosoma not heavily sclerotized; paraphysis between L2 and L3 with a single apex; perivulvar pores absent.......... 3

3a (2b). L1 with rounded apices; thoracic tubercle present or absent; only known on Eucalyptus View in CoL in Australia................. 4

3b. L1 with trilobed apices; thoracic tubercle absent; not known from Australia nor on Eucalyptus View in CoL ..................... 5

4a (3a). Thoracic tubercle present; second pygidial furrow each with 10-14 ducts in double rows..... C. rubribullatus Brimblecombe

4b. Thoracic tubercle absent; second pygidial furrow with less than 10 ducts in a single row.................................................................................................. C. trifasciculatus Brimblecombe View in CoL

5a (3b). Plates anterior to L3 with clavate apices; L3 notched once on each side; only known on Prunus View in CoL in China................................................................................................... C. mume (Tang) View in CoL

5b. Plates anterior to L3 with fringed apices; L3 with two or more lateral notches on each side........................ 6

6a (5b). L1 tri-lobed, with a notch on each side; prepygidial segments A1-A3 each with 2 macroducts; on orchids in the Philippines............................................................................. C. nulliporus (McKenzie) View in CoL

6b. L1 bi-lobed, with a notch only on lateral margin; prepygidial segments A1-A3 apparently lacking macroducts; only known on tea ( Thea ) in Madagascar.......................................................... C. aberrans (Mamet) View in CoL

7a (1b). Prosoma heavily sclerotized, beset with fine irregular lines; only known from Australia.......................... 8

7b. Prosoma membranous, without sclerotized fine irregular lines; widespread species or those known from other regions.. 9

8a (7a). Thoracic tubercle absent; perivulvar pore groups each with no more than 2 pores; second and third pygidial furrows each with 10–14 ducts in single or double rows; first pygidial plate anterior to L3 entire; only known on Santalum View in CoL from Australia..................................................................... C. variabilis McKenzie View in CoL (in part)

8b. Thoracic tubercle present; perivulvar pore groups each with 2 to 4 pores; second and third pygidial furrows with 14–16 ducts in double or triple rows; first pygidial plate anterior to L3 forked; various hosts in Australia.. C. fodiens (Maskell) View in CoL

9a (7b). First two plates anterior to L3 with clavate apices....................................................... 10

9b. First two plates anterior to L3 with fringed apices...................................................... 13

10a (9a). Prepygidial segments lacking a dorsal cluster of 4 or more ducts; numerous hosts, widespread................................................................................................... C. dictyospermi (Morgan) View in CoL

10b. Prepygidial segments with at least one segment with a cluster of 4 or more dorsal ducts........................ 11

11a (10b). Prepygidial segments A2 and A3 each with a submarginal dorsal cluster of ducts; pygidial furrows two and three each with ducts forming a single irregular row; numerous hosts, widespread.......................... C. bifasciculatus Ferris View in CoL

11b. Only prepygidial segment A2 with a submarginal dorsal cluster of ducts; pygidial furrows two and three each with ducts forming 2 to 3 rows............................................................................... 12

12a (11b). Test including exuvia uniformly reddish-brown in color; numerous hosts, widespread.......... C. pinnulifer (Maskell) View in CoL

12b. Test variable from pale black to purplish in color, with only exuvia reddish-brown in color; numerous hosts, widespread................................................................................ C. diversicolor (Green) View in CoL

13a (9b). Prepygidial segment A2 with a dorsal cluster of 5 or more ducts along lateral margin; numerous hosts, widespread..................................................................................... C. aonidum (Linnaeus) View in CoL

13b. Prepygidial segment A2 without a dorsal cluster of 5 or more ducts along lateral margin........................ 14

14a (13a). Second and third pygidial furrows each with 12-20 ducts; L1 notched only on outer margin...................... 15

14b. Second and third pygidial furrows each with less than 10 ducts; L1 notched on both margins or only on outer margin...... 16

15a (14a). Prepygidial segments A1, A2 and A3 with 3, 2 and 1 macroduct, respectively; on palms ( Arecaceae View in CoL ) and Pandanus View in CoL from Oriental and Pacific Island regions.................................................... C. propsimus Banks View in CoL

15b. Prepygidial segment A3 with 2 or 3 macroducts; A2 with 0 or 1 macroducts and A1 without macroducts; on Nepenthes View in CoL from Thailand................................................................. C. nepenthivorus sp. nov.

16a (14b). Pygidium with 3 fringed plates present between L3 and L4, each with a pair of terminal processes; anal opening separated from base of L1 by less than 1.5x its diameter; paraphysis arising from medial angle of L1 subequal in length of that arising from anterior base of L1; on Cocos View in CoL and Litsea View in CoL from Seychelles.............................. C. ansei (Green)

16b. Pygidium with 4 fringed plates present between setae marking positions of L3 and L4, each without a terminal process; anal opening separated from base of L1 by more than 2x its diameter; paraphysis arising from medial margin of L1 about two-thirds length of that arising from lateral angle of L1; on Fabaceae View in CoL in China.................... C. silvestrii Chou View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Diaspididae

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