Vilga, Stal, 1860

Costa, Wanessa Da Silva & Barcellos, Aline, 2017, Contributions to the taxonomy of Vilga Stål (Hemiptera, Coreidae, Pseudophloeinae) with the description of a new species from southern Brazil, Zootaxa 4353 (1) : -

publication ID

https://doi.org/ 10.11646/zootaxa.4353.1.11

publication LSID

lsid:zoobank.org:pub:5FC87216-289A-4355-8A17-1505712F0C95

DOI

https://doi.org/10.5281/zenodo.6038231

persistent identifier

https://treatment.plazi.org/id/03AB87CC-FF9B-536D-FF25-F98EFA42FC2F

treatment provided by

Plazi

scientific name

Vilga
status

 

Key to species of Vilga View in CoL (adapted from Dolling, 1977)

1 Pronotum deeply emarginate posteriorly ( Trinidad, Brazil, Paraguay, Bolivia, northern Argentina).... westwoodi (Kolenati) View in CoL

- Pronotum shallowly emarginate posteriorly................................................................ 2

2 Abdominal sternites bearing spines at postero-lateral angles which are about as long as width of connexivum; pronotum very spinose. ( Guatemala, French Guiana, Brazil, Paraguay)............................................. dallasi Distant View in CoL

- Abdominal sternites bearing spines at most half as long as width of connexivum; pronotum less spinose................ 3

3 Posterior femur with a single, small, subapical spine beneath. ( Peru, Chile, Argentina).............................. 4

- Posterior femur beneath with two major subapical spines and a group of three or four spine-like tubercules between distal spine and apex of femur. (Southern U.S.A. to southern Brazil)....................................................... 6

4 Length of antennal segment I at most 0.56 times width of head inclusive of eyes. ( Peru)................ peruviana Dolling View in CoL

- Length of antennal segment I at least 0.65 times width of head inclusive of eyes.................................... 5

5 Apex of corium at rest reaching level of middle of laterotergite V, apex of membrane not reaching beyond posterior margin of tergite VII. ( Chile, Argentina, Brazil).......................................................... chilensis (Stein) View in CoL

- Apex of corium reaching posteriorly to base of laterotergite VI, membrane projecting beyond posterior tip of body. ( Argentina)................................................................................... penningtoni Bergroth View in CoL

6 Lateral margins of abdominal sternites almost smooth......................................................... 7

- Lateral margins of abdominal sternites distinctly granulate or tuberculate....................................... 10

7 Posterolateral spines of pronotum short, width of pronotum across tips of spines about 1.97 times width of head inclusive of eyes. ( Brazil)........................................................................................ 8

- Posterolateral spines of pronotum long, widely diverging, width of pronotum across tips of spines at least 2.09 times width of head including eyes.................................................................................... 9

8 Pubescence including some longer and more erect setae; antennal segment II more than half the width of segment I ( Brazil)........................................................................................ antennata View in CoL sp. nov.

- Pubescence uniform in height; antennal segment II less than half the width of segment I ( Brazil)........ brasiliensis Dolling View in CoL

9 Antennal segment I without tubercles, though with some large granules present. ( Panama, Guyana)....... divaricata Distant View in CoL

- Antennal segment I externally with a row of projecting tubercles. ( Brazil).......................... sanctipauli Dolling View in CoL

10 Antennal segments I–III clothed with suberect hairs longer than width of segment II, disc of hemelytral membrane with numer- ous crossveins; sometimes brachypterous. (Southern U.S.A. to El Salvador).......................... mexicana Distant View in CoL

- Antennal segments I–III clothed with hairs shorter than width of segment II; disc of membrane without cross-veins; insect never brachypterous................................................................................. 11

11 Pronotum with posterolateral spines directed obliquely forwards. ( Brazil).............................. obliqua Dolling View in CoL

- Pronotum with posterolateral spines directed laterally....................................................... 12

12 Lateral margins of abdominal sternites V–VII bearing granules no longer than broad. ( Costa Rica, Panama, Aruba, Guyana, Colombia, Brazil)....................................................................... dissimilis Distant View in CoL

- Lateral margins of abdominal sternites V–VII bearing at least some tubercles longer than broad...................... 13

13 Antennal segment I about equal in length to width of head across antennifers. (Scutellum as long as its own basal width). (Bra- zil)................................................................................ serrulata Montandon View in CoL

- Antennal segment I longer than head width across antennifers................................................ 14

14 Antennal segment I about equal in length to width of head inclusive of eyes; scutellum as long as its own basal width. ( Brazil)......................................................................................... grisea Dolling View in CoL

- Antennal segment I shorter than width of head including eyes; scutellum distinctly longer than its own basal width. ( Brazil)...................................................................................... grisescens Dolling View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Coreidae

SubFamily

Pseudophloeinae

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF