Mezirinae

Swanson, Daniel R., Taylor, Steven J. & Heads, Sam W., 2017, Nine true bugs (Heteroptera) newly-discovered in Illinois, Zootaxa 4269 (4), pp. 571-585 : 573

publication ID

https://doi.org/ 10.11646/zootaxa.4269.4.10

publication LSID

lsid:zoobank.org:pub:42CB2BC0-E17B-44F8-AC59-C6A221E3955B

DOI

https://doi.org/10.5281/zenodo.6044502

persistent identifier

https://treatment.plazi.org/id/BB2C183C-0C40-FFA6-FF7F-574E51C94322

treatment provided by

Plazi

scientific name

Mezirinae
status

 

Key to the Mezirinae of Illinois

1 Fourth, fifth, and sixth abdominal sternites with narrow, sharp, transverse ventral ridge behind anterior margin; third antennomere at most only slightly longer than second ( Neuroctenus View in CoL ).................................................. 2

- Ventral ridge absent behind anterior margin of fourth, fifth, and sixth abdominal sternites; third antennomere conspicuously longer than second................................................................................... 3

2 (1) Seventh connexival segment of male with short, transverse fold; male paratergites reaching four-fifths length of large pygophore; third to seventh connexival segments of female with fold along outer border; female paratergites large, rounded, and reaching tip of tricuspidate ninth segment; abdomen broadly ovate.......................... Neuroctenus pseudonymus

- Connexiva without folds in both sexes; male paratergites smaller, reaching only three-fourths length of posteriorly rounded pygophore; female paraterites subtriangular, not reaching tip of notched ninth segment; abdomen more-or-less parallel-sided..................................................................................... Neuroctenus simplex

3 (1') Base of pronotum in front of scutellum trisinuate; ventral spiracles nearer to lateral margins than to anterior or posterior margins of segments; size small, length 4 mm or less ( Nannium View in CoL )....................................... Nannium pusio

- Base of pronotum in front of scutellum more-or-less straight; ventral spiracles equidistant from lateral, anterior, and posterior margins of segments; size larger, usually 5 mm or more ( Mezira View in CoL )............................................... 4

4 (3') Larger species, length 7 mm or more; scutellum with median carina distinct; head and pronotum sparsely granulated................................................................................................ Mezira lobata

- Smaller species, length not greater than 6.5 mm; scutellum with median carina obsolete or faint; head and pronotum densely granulated...........................................................................................5

5 (4') Body with long, thick, erect setae; parameres with caudal margin more-or-less straight between apical lobe and median lobe of hypophysis............................................................................. Mezira granulata

- Body with short, thin, appressed setae, each seta curving around associated tubercle; parameres with caudal margin more-orless sinuate between apical lobe and median lobe of hypophysis........................................ Mezira sayi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Aradidae

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