A New Genus of Rhagionidae (Diptera) with Notes and Descriptions of <i>Bolbomyia</i> Loew

Chillcott, J. G.

doi:10.4039/ent951185-11

Cited by 10 publications

(7 citation statements)

References 1 publication

(1 reference statement)

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“…The differences are as follows: R2 + 3 ending on C close to apex of R1 in Cretahilarimorpha gen. nov.; part of R4 + 5 basal of r-m longer than basal stem of Rs in Cretahilarimorpha while it is distinctly shorter in the modern Hilarimorpha; part of M between r-m and bm-cu very long and angular; CuA2 and A1 not touching; and cell cup very long, ending distal to apex of cell bm. The rhagionid genus Litoleptis Chilcott, 1963 has a wing venation similar to those of Cretahilarimorpha and Hilarimorpha, especially in the absence of the discal cell (Chilcott, 1963). The main difference in venation is the R5 and R4 + 5 subequal in length in Litoleptis while R5 is distinctly shorter in Cretahilarimorpha and Hilarimorpha (Kerr, 2010), even if Cretahilarimorpha shares with Litoleptis an apically open cell cup.…”

Section: Discussionmentioning

confidence: 95%

The first fossil hilarimorphid fly (Diptera: Brachycera)

Myskowiak¹,

Azar

Nel

2016

Gondwana Research

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Section: Discussionmentioning

confidence: 95%

The first fossil hilarimorphid fly (Diptera: Brachycera)

Myskowiak¹,

Azar

Nel

2016

Gondwana Research

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“…He also stated that "the stalk Family RHAGIONIDAE Latreille, 1802 Genus LITOLEPTIS Chillcott, 1963 Type species. Litoleptis alaskensis Chillcott, 1963 Litoleptis araeostylus Greenwalt, sp. nov.…”

Section: Remarksmentioning

confidence: 99%

“…Litoleptis orientalis is larger than L. araeostylus (2.7 mm wing length vs. 1.7 mm), and the fork of R 4+5 is distal to the fork of M 1+2 . Litoleptis alaskensis Chillcott, 1963, also has the fork of R 4+5 significantly distal to the fork of M 1+2 ; it also lacks the needle-like seta at the terminus of the flagellum (Chillcott, 1963).…”

Section: Remarksmentioning

confidence: 99%

Diptera of the middle Eocene Kishenehn Formation. I. Documentation of diversity at the family level

Greenwalt¹,

Bickel

Kerr

et al. 2019

Palaeontol Electron

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The Coal Creek Member of the Kishenehn Formation in northwestern Montana, USA, is an emerging middle Eocene Lagerstätte. While fish, plant, mammal and molluscan fossils are present, the most numerous and well-preserved fossils are those of insects. In this study, we initiate an effort to enumerate, at the family level, the diversity of flies (Insecta: Diptera) at this locality. Seventeen specimens from 17 different families (15 families with Limoniinae and Cylindrotominae within Tipulidae s.l.), 15 new species and three new genera are described. These include Tipula fji sp. nov. (Tipulidae), Ellipteroides kishenehn sp. nov. (Limoniidae), Cyttaromyia lynnae sp. nov. (Cylindrotomidae), Sylvicola silibrarius sp. nov. (Anisopodidae), Efcookella nigra sp. nov. (first fossil known in the genus) (Scatopsidae), Bibiodes kishenehnensis sp. nov. (Bibionidae), Eosciarites hermes gen. et sp. nov. (Sciaridae), Rymosia hypnolithica sp. nov. (Mycetophilidae), Litoleptis araeostylus sp. nov. (Rhagionidae), Kishenehnoasilus bhl gen. et sp. nov. (Asilidae), Drapetis adelomedos sp. nov. (Hybotidae), Salishomyia eocenica gen. et sp. nov. (Dolichopodidae), Agathomyia eocenica sp. nov. (first known fossil in genus) (Platypezidae), Lonchoptera eocenica sp. nov. (Lonchopteridae) and Aenigmatias kishenehnensis sp. nov. (Phoridae). Two specimens in the families Psychodidae and Pipunculidae are described but not assigned to a genus. In addition, we revise several related fossil species housed at the NMNH. Asilopsis fusculus Cockerell, 1921, formerly described in Asilidae, is transferred to Cyttaromyia (Cylindrotomidae) as C. fuscula, Sciara florissantensis Cockerell, 1917 is assigned to Sciaroidea incertae sedis, and Sciara gurnetensis Cockerell, 1916, Sciara lacoei Cockerell, 1915 and Sciara protoberidis Cockerell, 1915, are assigned to Sciaridae incertae sedis. Given their diversity and high degree of preservation, continued characterization of the Coal Creek Member fossils may help elucidate the Eocene radiation of Diptera in North America.

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“…Below is a list of characters used in reconstructing spaniine relationships. The original sources of most characters are cited accordingly, including Chillcott (1963), Hennig (1972), Kerr (2010), and Kato (2016a, 2016b), along with the character number used in that study (e.g., Kerr, 2010: 109) and a number in brackets after that signifies the char¬ acter state. 5.…”

Section: Relationshipsmentioning

confidence: 99%

“…Litoleptis, including fossilis: 24. Tibial spurs lost (Chillcott, 1963), though hind tibial spur apparently present and min¬ ute in L. fossilis (Arillo et al 2009). This needs to be carefully checked in the fossil since hind tibial spurs do not occur in any living Litoleptis nor in the closely related genera Spania and Spaniopsis, and small spurs (i.e., articulating in the intersegmental membrane) are sometimes difficult to discern even in modern specimens.…”

Section: Relationshipsmentioning

confidence: 99%

First Tropical American Species of the “Relict” GenusLitoleptis,and Relationships in Spaniinae (Diptera: Rhagionidae)

Grimaldi

2018

American Museum Novitates

686

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The genus Litoleptis has consisted of nine described species, seven of them Asian and only two in the New World: L. alaskensis Chillcott, known from two specimens from northwest Alaska, and L. chilensis Hennig, known from a male specimen from near Santiago, Chile. A third New World species is described here, Litoleptis tico, n. sp., based on a single female from Costa Rica. The species is unique for the genus in having a vestigial proboscis and lacking spermathecal accessory ducts and glands. Female terminalia are unknown for the other two New World species. A morphologically based, preliminary phylogeny of spaniines is provided, indicating Litoleptis is recently derived among spaniines and thus Rhagionidae; the Early Cre¬ taceous Litoleptis fossilis is a stem group to the living species. A derived position of the genus, its apparently broad distribution, and an abundance in Japan where Litoleptis has been bred from liverworts (Imada and Kato, 2016a), all indicate that these flies are probably not at all relict, simply vastly undersampled because of a reliance on mass-collecting techniques.

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A New Genus of Rhagionidae (Diptera) with Notes and Descriptions of Bolbomyia Loew

Cited by 10 publications

References 1 publication

The first fossil hilarimorphid fly (Diptera: Brachycera)

The first fossil hilarimorphid fly (Diptera: Brachycera)

Diptera of the middle Eocene Kishenehn Formation. I. Documentation of diversity at the family level

First Tropical American Species of the “Relict” GenusLitoleptis,and Relationships in Spaniinae (Diptera: Rhagionidae)

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