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Biology and systematics of the New World Phyllocnistis Zeller leafminers of the avocado genus Persea (Lepidoptera, Gracillariidae).

Davis DR, Wagner DL - Zookeys (2011)

Bottom Line: Early stages are illustrated and described for three of the species.The unusual morphology of the pupae, particularly the frontal process of the head, is shown to be one of the most useful morphological sources of diagnostic characters for species identification of Phyllocnistis.COI barcode sequence distances are provided for the four proposed species and a fifth, undescribed species from Costa Rica.

View Article: PubMed Central - PubMed

Affiliation: Department of Entomology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012 MRC 105, Washington, D.C. 20013-7012, U.S.A.

ABSTRACT
Four New World species of Phyllocnistis Zeller are described from serpentine mines in Persea (Family Lauraceae). Phyllocnistis hyperpersea,new species, mines the upper leaf surfaces of avocado, Persea americana Mill., and red bay, Persea borbonia (L.) Spreng. and ranges over much of the southeastern United States into Central America. Phyllocnistis subpersea,new species, mines the underside and occasionally upper sides of new leaves of Persea borbonia in southeastern United States. Phyllocnistis longipalpa, new species, known only from southern Florida also mines the undersides of new leaves of Persea borbonia. Phyllocnistis perseafolia,new species, mines both leaf surfaces and possibly fruits of Persea americana in Colombia, South America. As in all known species of Phyllocnistis, the early instars are subepidermal sapfeeders in young (not fully hardened) foliage, and the final instar is an extremely specialized, nonfeeding larval form, whose primary function is to spin the silken cocoon, at the mine terminus, prior to pupation. Early stages are illustrated and described for three of the species. The unusual morphology of the pupae, particularly the frontal process of the head, is shown to be one of the most useful morphological sources of diagnostic characters for species identification of Phyllocnistis. COI barcode sequence distances are provided for the four proposed species and a fifth, undescribed species from Costa Rica.

No MeSH data available.


Phyllocnistis leafmines. A Phyllocnistis hyperpersea sp. n., upper-side mine on Persea borbonia B Phyllocnistis subpersea sp. n., lower side mine on Persea borbonia. Pupal crypts indicated by arrows in A and C.  C Phyllocnistis perseafolia sp. n., lower-side mine on Persea americana (~ 15 cm).
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Figure 3: Phyllocnistis leafmines. A Phyllocnistis hyperpersea sp. n., upper-side mine on Persea borbonia B Phyllocnistis subpersea sp. n., lower side mine on Persea borbonia. Pupal crypts indicated by arrows in A and C. C Phyllocnistis perseafolia sp. n., lower-side mine on Persea americana (~ 15 cm).

Mentions: Figs 2A 3A 5A 6A 7D 16 A–E


Biology and systematics of the New World Phyllocnistis Zeller leafminers of the avocado genus Persea (Lepidoptera, Gracillariidae).

Davis DR, Wagner DL - Zookeys (2011)

Phyllocnistis leafmines. A Phyllocnistis hyperpersea sp. n., upper-side mine on Persea borbonia B Phyllocnistis subpersea sp. n., lower side mine on Persea borbonia. Pupal crypts indicated by arrows in A and C.  C Phyllocnistis perseafolia sp. n., lower-side mine on Persea americana (~ 15 cm).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3095128&req=5

Figure 3: Phyllocnistis leafmines. A Phyllocnistis hyperpersea sp. n., upper-side mine on Persea borbonia B Phyllocnistis subpersea sp. n., lower side mine on Persea borbonia. Pupal crypts indicated by arrows in A and C. C Phyllocnistis perseafolia sp. n., lower-side mine on Persea americana (~ 15 cm).
Mentions: Figs 2A 3A 5A 6A 7D 16 A–E

Bottom Line: Early stages are illustrated and described for three of the species.The unusual morphology of the pupae, particularly the frontal process of the head, is shown to be one of the most useful morphological sources of diagnostic characters for species identification of Phyllocnistis.COI barcode sequence distances are provided for the four proposed species and a fifth, undescribed species from Costa Rica.

View Article: PubMed Central - PubMed

Affiliation: Department of Entomology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012 MRC 105, Washington, D.C. 20013-7012, U.S.A.

ABSTRACT
Four New World species of Phyllocnistis Zeller are described from serpentine mines in Persea (Family Lauraceae). Phyllocnistis hyperpersea,new species, mines the upper leaf surfaces of avocado, Persea americana Mill., and red bay, Persea borbonia (L.) Spreng. and ranges over much of the southeastern United States into Central America. Phyllocnistis subpersea,new species, mines the underside and occasionally upper sides of new leaves of Persea borbonia in southeastern United States. Phyllocnistis longipalpa, new species, known only from southern Florida also mines the undersides of new leaves of Persea borbonia. Phyllocnistis perseafolia,new species, mines both leaf surfaces and possibly fruits of Persea americana in Colombia, South America. As in all known species of Phyllocnistis, the early instars are subepidermal sapfeeders in young (not fully hardened) foliage, and the final instar is an extremely specialized, nonfeeding larval form, whose primary function is to spin the silken cocoon, at the mine terminus, prior to pupation. Early stages are illustrated and described for three of the species. The unusual morphology of the pupae, particularly the frontal process of the head, is shown to be one of the most useful morphological sources of diagnostic characters for species identification of Phyllocnistis. COI barcode sequence distances are provided for the four proposed species and a fifth, undescribed species from Costa Rica.

No MeSH data available.