Leptophion Cameron, 1901

Shimizu, So, Watanabe, Kyohei & Maeto, Kaoru, 2016, Revision of the Taiwanese species of the genus Leptophion Cameron, 1901 (Hymenoptera: Ichneumonidae: Ophioninae), with a discussion of their phenology and distribution, Zootaxa 4144 (1), pp. 71-88 : 73-74

publication ID

https://doi.org/ 10.11646/zootaxa.4144.1.3

publication LSID

lsid:zoobank.org:pub:86080FA4-EFDD-443B-A673-B455C665D003

DOI

https://doi.org/10.5281/zenodo.5691797

persistent identifier

https://treatment.plazi.org/id/03EE483C-FE27-2D6B-FF00-F90BFE9EF776

treatment provided by

Plazi

scientific name

Leptophion Cameron, 1901
status

 

Genus Leptophion Cameron, 1901 View in CoL View at ENA

Leptophion Cameron, 1901: 227 View in CoL . Type species: Leptophion longiventris Cameron View in CoL , by monotypy. Spilophion Cameron, 1905: 124. Type species: Spilophion maculipennis Cameron , by monotypy. Synonymized by Townes et al. (1961: 265).

Coiloneura Szépligeti, 1905: 35. Type species: Coiloneura melanostigma Szépligeti , by subsequent designation. Synonymized by Cushman (1947: 462).

Diagnosis. This genus can be distinguished from other genera of Ophioninae by the following combination of character states: (1) mandible not twisted, barely tapered, with symmetric teeth or upper tooth slightly longer than lower one, usually with a swelling and oblique groove on its basal surface ( Figs 1 View FIGURES 1 – 4 , 8, 10 View FIGURES 8 – 14 , 16, 18 View FIGURES 16 – 22 , 25, 27 View FIGURES 25 – 31 ); (2) in lateral view, clypeus strongly convex, its lower part abruptly strongly curved backward ( Figs 10 View FIGURES 8 – 14 , 18 View FIGURES 16 – 22 , 27 View FIGURES 25 – 31 ) and in frontal profile its lower margin nearly straight ( Figs 1 View FIGURES 1 – 4 , 8 View FIGURES 8 – 14 , 16 View FIGURES 16 – 22 , 25 View FIGURES 25 – 31 ); (3) occipital carina complete except for lower end absent and not joined to hypostomal carina and base of mandible ( Figs 9, 10 View FIGURES 8 – 14 , 17, 18 View FIGURES 16 – 22 , 26, 27 View FIGURES 25 – 31 ); (4) ocelli large and posterior ones adjacent with eyes ( Figs 1 View FIGURES 1 – 4 , 8–10 View FIGURES 8 – 14 , 16–18 View FIGURES 16 – 22 , 25–27 View FIGURES 25 – 31 ); (5) posterior transverse carina on mesosternum complete, rarely interrupted in a few Australasian species (i.e., L. anici Gauld, 1977 , and L. antennatus (Morley, 1912)) ; (6) notauli faintly present as vestiges or completely absent ( Figs 11 View FIGURES 8 – 14 , 19 View FIGURES 16 – 22 , 28 View FIGURES 25 – 31 ); (7) epicnemial carina on mesopleuron present and its upper end reaching above level of lower margin of pronotum ( Figs 11 View FIGURES 8 – 14 , 19 View FIGURES 16 – 22 , 28 View FIGURES 25 – 31 ); (8) anterior transverse carina on propodeum developed but in a few species its outer end absent ( Figs 11, 12 View FIGURES 8 – 14 , 19, 20 View FIGURES 16 – 22 , 28, 29 View FIGURES 25 – 31 ); (9) posterior transverse carina on propodeum virtually absent but often with vestiges laterally ( Figs 11, 12 View FIGURES 8 – 14 , 19, 20 View FIGURES 16 – 22 , 28, 29 View FIGURES 25 – 31 ); (10) fore wing with a glabrous area on anterior corner of discosubmarginal cell, and virtually all species without sclerites there, except for a Filipino species, L. pterospilus Gauld & Mitchell, 1981 , which has a distinct sclerite; (11) 1m-cu on fore wing sinuous or curved, usually without ramellus ( Figs 2 View FIGURES 1 – 4 , 32–34 View FIGURES 32 – 34 ); (12) hind wing usually with an apparently elongated penultimate hamulus on R1 ( Fig. 13 View FIGURES 8 – 14 ), while occasionally with uniform hamuli ( Figs 21 View FIGURES 16 – 22 , 30 View FIGURES 25 – 31 ); (13) tibial spur of fore leg without a membranous flange; (14) mid and hind trochanters simple; and (15) distal pecten of hind tarsal claw developed and significantly longer than true apex of claw ( Figs 14 View FIGURES 8 – 14 , 22 View FIGURES 16 – 22 , 31 View FIGURES 25 – 31 ).

Distribution. Australasian, Oceanic, Oriental, and Palaearctic regions ( Gauld 1977; Gauld & Mitchell 1981; Shimizu & Watanabe 2015a).

Bionomics. Host is unknown. Adult wasps are often collected in LT in rainforests.

Remarks. Most Leptophion species are known from the Australasian region while only a few species are distributed in the Oceanic and Oriental regions and the southeastern part of the Palaearctic region.

In Taiwan, three species (i.e., L. maculipennis of the maculipennis species-complex, and L. radiatus and L. giganteus Shimizu & Watanabe , sp. nov., both of which belong to the radiatus species-complex) are found ( Gauld & Mitchell 1981; Shimizu & Watanabe 2015a, b) and they can easily be distinguished from each other by the following key.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Ichneumonidae

Loc

Leptophion Cameron, 1901

Shimizu, So, Watanabe, Kyohei & Maeto, Kaoru 2016
2016
Loc

Leptophion

Townes 1961: 265
Cameron 1905: 124
Cameron 1901: 227
1901
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