Tanyxiphium, Huber, 2015

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2024, Illustrated key to the genera and catalogue of Mymaridae (Hymenoptera) in the Neotropical region, Zootaxa 5557 (1), pp. 1-263 : 101-102

publication ID

https://doi.org/ 10.11646/zootaxa.5557.1.1

publication LSID

lsid:zoobank.org:pub:6CE8CC38-F965-4404-ACCD-6D0DBDB942FB

DOI

https://doi.org/10.5281/zenodo.14597307

persistent identifier

https://treatment.plazi.org/id/F879DB6E-995D-FF89-FF35-F9A4FD97FE3F

treatment provided by

Plazi

scientific name

Tanyxiphium
status

 

TANYXIPHIUM Huber, 2015 View in CoL

( Figs 321–329 View FIGURES 321–323 View FIGURES 324, 325 View FIGURES 326–328 View FIGURES 329 )

Tanyxiphium Huber, 2015a: 57 View in CoL View Cited Treatment . Type species: Tanyxiphium seychellense Huber, 2015 View in CoL , by original designation.

Diagnosis. Tanyxiphium is distinguished from the other genera of Gonatocerini by the following combination: mandible small, shorter than maxilla, with teeth minute ( Fig. 321a View FIGURES 321–323 ); pronotum short, entire or apparently so ( Fig. 324 View FIGURES 324, 325 ); dorsellum rhomboidal; ovipositor extending beyond gaster ( Fig. 325a View FIGURES 324, 325 ). Male head wider ( Fig. 326a,b View FIGURES 326–328 ) and relatively narrower than in female ( Fig. 321a,b View FIGURES 321–323 ); mandibles large, crossing when closed, each with 3 normal teeth ( Fig. 326a View FIGURES 326–328 ); pronotum longer than in female, with lateral lobes apparently widely separated due to different colour of median area ( Fig. 328 View FIGURES 326–328 ).

Remarks. Tanyxiphium belongs to the Gonatocerus group of genera, treated formally as Gonatocerini in Huber (2015a). Tanyxiphium is the only genus of Gonatocerini that shows secondary sexual differences in structure of the head and mouthparts. Tanyxiphium is most similar to Gonatocerus but differs by the mandibles being sexually dimorphic (not so in Gonatocerus ), the vertex with 4 setae between the lateral ocelli (2 in Gonatocerus ), and the pronotum entire, though appearing divided, with widely separated lateral lobes (medially divided, with lateral lobes abutting at least ventrally in Gonatocerus ). It also is similar to Lymaenon , which sometimes has the vertex with 4 setae between lateral ocelli, pronotum with widely separated lateral lobes though in Lymaenon the pronotum really is divided whereas in Tanyxiphium it appears to be entire because its posterior margin does not have any breaks.

Neotropical hosts. Unknown.

Important reference. Huber (2015a).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Mymaridae

Loc

Tanyxiphium

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V. 2024
2024
Loc

Tanyxiphium

Huber, J. T. 2015: 57
2015
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