Valid Names Results

Cryptostigma biorbiculus Morrison, 1929 (Coccidae: Cryptostigma)

Nomenclatural History

• Cryptostigma biorbiculus Morrison 1929: 48. Type data: PANAMA: Canal Zone, Ancon, on Cordia alliodora.. Holotype, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name

Common Names

Ecological Associates

Hosts:

Families: 4 | Genera: 4

Associates:

Families: 1 | Genera: 2

Geographic Distribution

Keys

• KondoRo2022: pp.551-552 ( Adult (F) ) [species of Cryptostigma]
• KondoRo2022: pp.552-553 ( First instar ) [known nymphs of Cryptostigma]
• Kondo2010b: pp.9-10 ( Adult (F) ) [Key to the adult females of Cryptostigma Ferris]
• Kondo2010b: pp.10 ( First instar ) [Key to the known first-instar nymphs of Cryptostigma Ferris]

Remarks

• Systematics: Specimens collected in Cali, Colombia, on Croton gossypiifolius have sclerotic pores with smooth round edges, in contrast to more irregular to quadrate sclerotic pores as seen in the type specimens and species collected elsewhere. (Kondo, 2010b)
• Structure: The adult female of C. biorbiculus can be diagnosed by the following features: (i) dorsum with numerous sclerotic pores, (ii) a pair of orbicular pores present in midline, (iii) 3 or more pairs of small groups of cribriform platelets present submedially between anal plates and posterior orbicular pore, (iv) preopercular pores absent, (v) 9–15 setae present on dorsal surface of each anal plate, (vi) ventral tubular ducts absent, and (vii) multilocular disc-pores present near mouthparts. (Kondo, 2010b) The first-instar nymph of C. biorbiculus can be diagnosed by the following features: (i) dorsal setae absent, (ii) each anterior stigmatic cleft with 1 or 2 stigmatic setae; each posterior cleft with 1-3 setae, (iii) 6-8 marginal setae present between anterior and posterior stigmatic setae, (iv) antennae 6 segmented, (v) with 3 pairs of ventral submedian setae on abdomen, and (vi) each anterior spiracular furrow with 8-11 pores and each posterior furrow with 11-14 pores. First-instar nymphs from material collected in Colombia on Croton gossypiifolius have many fewer setae on the legs, a greater number of ventral and dorsal microducts and a small apical claw denticle (denticle absent in type material).
• Biology: Attended by the ants Pseudomyrma sericea and Azteca longiceps (Morrison, 1929).
• General Remarks: Good description and illustration of the adult female given by Morrison (1929). Detailed illustrations and redescription in Kondo, 2010b.

Illustrations

Citations