Galleruca trifasciata Fabricius, 1801

Roie, Martijn Van, Kuhlmann, Michael, Mack, Anne & Konstantinov, Alexander, 2024, Fabrician types of new world Oedionychina Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticini) deposited in the Zoological Museum of Kiel University collections with notes on Fabrician types of other collections and new combinations for species formerly placed in the subtribe, European Journal of Taxonomy 920 (1), pp. 1-60 : 55-57

Galleruca trifasciata Fabricius, 1801

Fig. 38

trifasciata Fabricius, 1801: 498 (America meridionali).

Material examined

Syntype

COUNTRY NOT INDICATED ON SPECIMEN • ♀; “ G. trifasciata en Am. Mer: Schmidt Type”; Kiel; ZMUC 00031106 .

Status in Zimsen (1964)

P. 112 No.1744. “In America meridionali D. Smidt Mus. D. de Sehestedt” Copenhagen 1 specimen.

Original description

“G. saltatoria, pallida, elytris nigris: puncte baseos fasciisque tribus albis.Habitat in America meridionali. D. Smidt. Mus. D. de Sehestedt. Statura praecedentium. Caput cum antennis atrum. Thorax laevis, pallide testaceus, immaculatus. Elytra laevia, puncto baseos, falsciis duabus maculaque apicis albis. Corpus pallide testaceum.”

Current status

Ora trifasciata ( Fabricius, 1801) comb. nov.

Measurements

Syntype ( Fig. 38 ): LB = 5.16 mm; WB = 3.12 mm.

Remarks

The examined specimen identified as “ trifasciata ” belongs to the Scirtidae genus Ora Clark, 1865 (Ruta pers. com.). It has an elytral pattern similar to that of some Oedionychina and swollen metafemora as all Oedionychina do. It is not clear if prior authors, who commented on the name, ever examined the type, but we suspect the type is being studied for the first time in this paper. It appeared as Oedionychus trifasciatus in Heikertinger & Csiki (1940) with two synonyms: O. areatus Germar, 1824 and O. divisa Germar, 1824 . Bechyné (1955a) transferred it to Alagoasa and suggested that O. divisa is a valid species (and not a synonym of O. trifasciata ). Bechyné later (1958) described a subspecies Alagoasa trifasciata macromela Bechyné, 1958 and proposed another subspecies by transferring Alagoasa escuintla Bechyné, 1955 , producing Alagoasa trifasciata escuintla . Another subspecies of A. trifasciata was created when Bechyné & Bechyné (1977) transferred A. decempunctata Latreille, 1833 into it. Two more subspecies, A. trifasciata praecessa and A. trifasciata recuperata were created by Bechyné (1959). Since G. trifasciata is being placed in Ora ( Scirtidae ), the oldest name for the taxon previously called Alagoasa trifasciata is Haltica areata Germar, 1824 . This name should be used from now on as valid for the following taxa: Alagoasa areata areata ( Germar, 1824) , Alagoasa areata decempunctata ( Latreille, 1833) , Alagoasa areata escuintla Bechyné, 1955 , Alagoasa areata macromela Bechyné, 1958 , Alagoasa areata praecessa Bechyné, 1959 and Alagoasa areata recuperata Bechyné, 1959 .

Notes on other Fabrician types

The first author consulted the Banks collection in the Natural History Museum, London, UK (BMNH) but could not find any Fabrician species types belonging in Oedionychina . One specimen of Galleruca aequinoctialis ( Linnaeus, 1758) (originally described as Chrysomela Linnaeus, 1758 ) was present, but probably misidentified since it is most likely conspecific with Omophoita octomaculata ( Crotch, 1873) (now considered a subspecies of Omophoita cyanipennis ( Fabricius, 1798)) . Given the brittle state of the specimen, handling was kept to a minimum.

Based on Zimsen (1964), the following types of Oedionychina are likely lost: Altica biguttata Fabricius, 1775 , Galleruca cyanipennis Fabricius, 1798 , Chrysomela equestris Fabricius, 1787 , Altica octoguttata Fabricius, 1775 (in Zimsen 1964 as “ Altica 8 gultata ” [incorrect subsequent spelling]) and Altica thoracica Fabricius, 1775 .

According to Zimsen (1964), the following types of Oedionychina should be present in the collections of Paris: Galleruca obsidiana Fabricius, 1801 , Galleruca quercata Fabricius, 1801 , Galleruca suturalis Fabricius, 1801 and Galleruca concinna Fabricius, 1801 . Moreover, Blake (1927) noted that there are three cotypes of Galleruca miniata Fabricius, 1801 present in the Bosc collection in Paris. All the species allegedly present in Paris represent North-American taxa that are currently placed in the genera Capraita Bechyné, 1957 and Kuschelina Bechyné, 1951 .

Figures

Fig. 38. Galleruca trifasciataFabricius, 1801, syntype, ♀ (ZMUC 00031106). A. Dorsal view.B. Ventral view. C. Lateral view. D. Frontal view. E. Labels. Scale bars = 1 mm.