Sycoecus_key - FigWeb

Key to species of Sycoecus

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera; Superfamily: Chalcidoidea; Family: Pteromalidae; Subfamily Sycoecinae)

FEMALES

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1A	Tibial plate distinctly (more than 1.3X) longer than total fore tibial length; epistomal margin indentation no deeper than the projection of the margin ...2

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1B	Tibial plate subequal (less than 1.13X as long) to fore tibial length; epistomal margin indentation deeper than the projection of the margin ...7

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2A	Mandible with two ventral teeth ...3

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2B	Mandible with three ventral teeth ...6

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3A	Tibial plate more than twice as long as total fore tibial length ...4

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3B	Tibial plate less than twice as long as fore tibia ...5

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4A	Cheek 1.6X longer than eye length; tibial plate 2.6X longer than fore tibia, ex F. lyrata ...Sycoecus crinitus

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4B	Cheek at least twice as long as eye; tibial plate 2.3X longer than fore tibia, ex F. cyathistipuloides and F. subsagittifolia ...Sycoecus wiebesi

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5A	Tibial plate 1.3X as long as fore tibia; cheek 1.2X as long as eye, ex F. sagittifolia ...Sycoecus lamtoensis

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5B	Tibial plate 1.8X as long as fore tibia; cheek 1.6X as long as eye, ex F. scott-elliotii ...Sycoecus ivoryensis

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6A	Epistomal margin indentation shallower than its width (fig. 36); cheek 1.76X longer than eye, ex Ficus species ...Sycoecus nyassossoensis

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6B	Epistomal margin indentation deeper than its width, cheek 1.12X longer than eye, ex F. cyathistipula cyathistipula ...Sycoecus thaumastocnema

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7A	Mandible with three ventral teeth; cheek length 1.34X longer than eye length, ex F. tesselata ...Sycoecus bergi

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7B	Mandible with two ventral teeth; cheek length either 1.46X, subequal or shorter than eye length ...8

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8A	Cheek length 1.46X longer than eye, ex Ficus species ...Sycoecus medleri

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8B	Cheek length shorter or subequal to eye length ...9

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9A	Cheek length shorter than eye length; indentation in epistomal margin as broad as the width of both toruli, ex F. cyathistipula pringsheimiana ...Sycoecus oculabulbus

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9B	Cheek subequal to eye length; indentation narrower, width equivalent to the width of one torulus, ex Ficus species ...Sycoecus taylori

MALES

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1A	Bilobed epistomal margin, with the medial concavity equivalent in size to each lateral convexity; vertex, mesoscutum and gaster dark brown, rest testaceous, ex F. cyathistipula pringsheimiana ...Sycoecus oculabulbus

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1B	Epistomal margin almost straight, with a medial concavity absent or minute; completely testaceous ...2

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2A	Epistomal margin almost straight with no medial concavity, ex F. cyathistipuloides ...Sycoecus wiebesi

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2B	Epistomal margin with a medial impression, which may be very broad and shallow ...3

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3A	Epistomal margin convex with a broad and very shallow medial concavity; toruli separated by a third of torulus width, ex F. lyrata ...Sycoecus crinitus

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3B	Epistomal margin with a distinct, small, medial impression, ca. as deep as wide; toruli separated by more than half the width of a torulus ...4

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4A	Head 1.16X longer than wide, eye length 1.20X longer than the cheek; toruli separated by less than the width of a torulus, ex Ficus species ...Sycoecus nyassossoensis

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4B	Head less than 1.09X longer than wide, eye more than 1.30X longer than the cheek; toruli separated by the width of a torulus ...5

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5A	Eye length 1.47X longer than the cheek, ex F. cyathistipula cyathistipula ...Sycoecus thaumastocnema

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5B	Eye length 1.31X longer than the cheek ...6

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6A	SL 2.4X longer than TE; head slightly elongate L:W = 1.08, ex F. sagittifolia ...Sycoecus lamtoensis

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6B	SL 2.7X longer than TE; head ca. square L:W = 1.02, ex F. tesselata ...Sycoecus bergi

Web authors Simon van Noort (Iziko South African Museum)

and Jean-Yves Rasplus (INRA, France)

Citation: van Noort, S. & Rasplus, JY. 2024. Figweb: figs and fig wasps of the world. URL: www.figweb.org(Accessed on <day-month-year>).

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