Cruziella bifasciata ( Osborn, 1923 ), 2025

Zahniser, James N., 2025, Notes on some Neotropical Deltocephalinae (Hemiptera: Cicadellidae) described by Herbert Osborn and a review of Caphodus, Zootaxa 5692 (2), pp. 300-320 : 317-318

publication ID

https://doi.org/10.11646/zootaxa.5692.2.5

publication LSID

lsid:zoobank.org:pub:EE8C41FC-7393-4E55-8714-90EA151DB7C7

persistent identifier

https://treatment.plazi.org/id/9F37571B-2230-FFD6-679A-FA969420FF36

treatment provided by

Plazi

scientific name

Cruziella bifasciata ( Osborn, 1923 )
status

comb. nov.

Cruziella bifasciata ( Osborn, 1923) View in CoL , new combination

Fig. 14 View FIGURE 14

Thamnotettix bifasciatus Osborn, 1923: 69 View in CoL

Haldorus (Haldorus) bifasciatus ( Osborn, 1923) View in CoL in Linnavuori, 1959: 146

Cumora (Cumora) bifasciata ( Osborn, 1923) in Dmitriev et al., 2022 onward

Material examined. Paratype, ♂: Prov. del Sara, Bolivia, 450 m., J. Steinbach / Nov 1909 / C.M. Acc. 4549 / Allotype / Bolarga not Haldorus as in Lnv. / Thamno bifasciatus Osb .

Diagnosis. C. bifasciata is very similar in external appearance and color pattern to C. trispinosa Linnavuori & DeLong , currently the only other species placed in the genus, but can be distinguished by the darker coloration of the face, venter, and markings on the dorsum, the thicker style apophysis, and the shorter and less produced articulating arm of the style.

Male. Pygofer longer dorsally than ventrally; slightly bulbous anteroventrally; with numerous macrosetae on posterior half. Subgenital plates narrow, sharply triangular, with lateral margins concave; with a row of 7 to 8 macrosetae on lateral margin. Style with anterior margin deeply incised; articulating arm produced only slightly beyond lateral arm; preapical lobe broad, rounded; apophysis thick, short and blunt. Connective fused to aedeagus; anterior arms long, capitate. Aedeagus with unpaired ventral median process straight, narrow, and sharply pointed; apex strongly bifid.

Notes. The only known male specimen of this species ( allotype specimen) was among those recovered in loan found at USNM. Osborn’s (1923) description was repeated by Linnavuori (1959), but the species was never illustrated.

This species clearly keys to Cruziella Linnavuori & DeLong, 1979 in the key to genera of South American Deltocephalini ( Duan & Dietrich, 2018) based on the forewing with branches of vein R reflexed (shared with Bolarga ), aedeagus with an unpaired ventral process arising preapically on the ventral side (shared with Bolarga ), the pygofer lacking a sclerotized process arising from the dorsal margin and extending anteroventrad into genital capsule (present in Bolarga ), and subgenital plate without a dense group of setae at apex (present in Bolarga ).

Dmitriev et al. (2022 onward) noted that Cumora Oman, 1938 was described as a genus in the same paper where Haldorus Oman, 1938 was described as a subgenus. The two were later consider synonyms by Linnavuori (1959) who recognized Haldorus as the valid name, but because of the original higher rank, Cumora has priority ( ICZN Art. 24.1). Thus, the combination of this species with Cumora appears on the Dmitriev et al. (2022 onward) website and in the synonymy above. The genus name Haldorus has commonly been used in the literature.

USNM

Smithsonian Institution, National Museum of Natural History

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Cruziella

Loc

Cruziella bifasciata ( Osborn, 1923 )

Zahniser, James N. 2025
2025
Loc

Haldorus (Haldorus) bifasciatus ( Osborn, 1923 )

Linnavuori, R. 1959: 146
1959
Loc

Thamnotettix bifasciatus

Osborn, H. 1923: 69
1923
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