Asynapta rickebasta, Jaschhof & Jaschhof, 2019

Jaschhof, Mathias & Jaschhof, Catrin, 2019, New and rarely found species of asynaptine Porricondylinae (Diptera: Cecidomyiidae) in northern Europe, Zootaxa 4604 (2), pp. 281-300 : 286

publication ID

https://doi.org/ 10.11646/zootaxa.4604.2.3

publication LSID

lsid:zoobank.org:pub:0BA07364-39ED-4349-98C5-27431A90CEAA

DOI

https://doi.org/10.5281/zenodo.5944083

persistent identifier

https://treatment.plazi.org/id/4C408780-8A47-FFEE-23A4-6E9FFAC96B85

treatment provided by

Plazi

scientific name

Asynapta rickebasta
status

sp. nov.

Asynapta rickebasta sp. nov.

Figs 2–3 View FIGURES 1–4 , fig. 150 in Jaschhof & Jaschhof (2013)

This new species was erroneously referred to as A. baltica Spungis in our revision of Swedish Porricondylinae ( Jaschhof & Jaschhof 2013: 314f.), where we described it on the basis of three males from Uppland. As these are the only specimens known of this species, they are designated here as the types of A. rickebasta . While the species description published in 2013 is fully applicable to A. rickebasta , an updated diagnosis is presented here taking A. baltica and A. taigensis sp. nov., two species resembling A. rickebasta , into account.

Diagnosis. The ventral parameres of A. rickebasta are unique in forming a triangle-shape with a somewhat raised, longitudinal axis, which appears as an unsharp dark line in slide preparations ( Fig. 3 View FIGURES 1–4 , ↓ 2). A pair of membranous, faintly contoured lobes basally of this triangle is also believed to be of parameral origin ( Fig. 3 View FIGURES 1–4 ). The helmetshaped gonostylus is slightly swollen below the apical claw, which consists of numerous spines forming a broad comb ( Fig. 2 View FIGURES 1–4 , ↓ 1). The gonostylus of A. baltica is similar, except that the apex is narrower and the apical claw, which actually is a solid tooth, is smaller ( Fig. 18 View FIGURES 18–24 , ↓ 1). The gonostylar structure in A. taigensis is unmistakable in that the area below the claw is strongly swollen, with the result that the claw, a comb of rather small size, is in a subapical position ( Fig. 4 View FIGURES 1–4 , ↓ 3). The parameres of A. baltica ( Figs 18–19 View FIGURES 18–24 ) and A. taigensis ( Fig. 4 View FIGURES 1–4 , ↓ 4) are quite unlike that found in A. rickebasta , which provides another effective distinction.

Etymology. The species name, a noun in apposition, refers to the type locality, Rickebasta Nature Reserve in Sweden’s province Uppland.

Type material. Holotype. Male , Sweden, Uppland , Knivsta, Rickebasta Nature Reserve, swamp forest of alder, 25 June–31 July 2009, Malaise trap, M. & C. Jaschhof (spn. no. GULI000024094 in NHRS). Paratypes. 1 male, same data as the holotype (spn. no. GULI000024093 in NHRS) ; 1 male, same data (spn. no. SE 2051 in SDEI) .

NHRS

Swedish Museum of Natural History, Entomology Collections

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Cecidomyiidae

Genus

Asynapta

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