Mezirinae

Contreras, Eugenia Fernanda & Coscarón, María Del Carmen, 2012, The Aradidae (Insecta, Hemiptera, Heteroptera) of Argentina, Zootaxa 3500, pp. 1-35 : 12

Key to genera of Mezirinae of Argentina

1. Granular surface without pubescence; pronotum with lateral margins sinuate; anterior angles briefly, roundly lamellate but never produced as strong lobes; hind margin very slightly concave; scutellum slightly longer than pronotum................................................................................. Neuroctenus Fieber ( Figs 9 A–D, 10A–B)

1’. Surface with coarse granules; pronotum with lateral margins more or less dilated forming a narrow anterior lobe; hind margin nearly straight; scutellum much shorter than pronotum......................................................... 2

2. Body beset with long erect hairs, straight or curved. Membrane without veins............... Aphleboderhis Stål ( Fig 5 A)

2’. Body without or with few hairs conspicuous. Membrane with veins.............................................. 3

3. Pronotum laterally expanded lobes broad ( Fig 4 B), sickle-shaped, sides of pronotum with prominent tooth-like granules in one or two rows; abdomen broadly rounded, connexiva with prominent rounded lateral lobes and granulate margins edges lobe. Hemelytra complete reaching to hind margin of 6th tergite................... Dysodius Lepeletier and Serville ( Fig 5 B)

3’. Pronotum slightly or not expanded laterally, sides of pronotum without prominent tooth-like granules in one or two rows; abdomen not rounded and without lateral lobes. Hemelytra complete reaching over of 7 th tergite...................... 4

4. Antennae long, anteniferous tubercles relatively short and usually spine-like not exceed level of outer margins of eyes. Rostral groove distinct, narrow and paralell-sided and terminating at constricted neck region..................................................................................... Mezira Amyot and Serville ( Figs 5 D, 6A–E, 7A–D, 8A–D)

4’. Antennae short ( Fig 4 C), anteniferous tubercles not short and broadened into plate-like lobes which are rounded and exceed level of outer marging of eyes. Rostral groove distinctly delimited for carinae at the bottom, which are slightly sinuate..... 5

5. The genae exceedingly wide, broadened anteriorly. Scutellum about as long as pronotum on median line.............................................................................................. Lobocara Bergroth ( Fig 5 C)

5’. The genae not exeedingly wide. Scutellum much shorter than pronotum on median line with a prominent longitudinal carina..................................................................................................... 6

6. Upper surface of head with clypeus narrowly elevated, with a pair of longitudinal rows of tubercles placed to each other behind clypeus................................................................... Placogenys Usinger and Matsuda

6’. Upper surface of head without clypeus narrowly elevated, with a pair of longitudinal rows of tubercles placed to each other behind clypeus........................................................................................ 7

7. Scutellum shorter than pronotum, the sides sinuate and carinate. Tarsi with short but distinct arolia between the claws. Wings present........................................................ Notapictinus Usinger and Matsuda ( Fig 10 B)

7’. Scutellum formed as a triangular area produced backward at middle but completely exposed and narrowed laterally to just behind humeral angles where a small rounded lobe is produced on either side beyond level of humeral angles. Tarsi with claws bearing distinct arolia and a median much longer seta enlarged and curved at tip. Wings absent................................................................................................. Kormilevia Usinger and Matsuda

Figures

FIGURE 4. Subfamily Aradinae and Isoderminae. Dorsal view Aradus mexicanus: A; Dorsal view Aradus penningtoni: B; Dorsal view and forewings with line of weakness Isodermus gayi: C; Base of labium free and exposed Isodermus gayi: D.

FIGURE 5. Subfamily Mezirinae: Dorsal view Aphleboderrhis pilosa: A; Dorsal view, pronotum laterally expanded lobes broad and abdomen broadly rounded Dysodius lunatus: B; Dorsal view and genae wide Lobocara oblonga: C; Dorsal view and mandibular plates produced anteriorly Mezira americana: D.

FIGURE 9. Subfamily Mezirinae: Dorsal view and female genitalia Neuroctenus centralis: A; Male pygophore deeply Depressed longitudinally on the apex Neuroctenus centralis: B; Dorsal view Neuroctenus punctulatus: C; Male pygophore Neuroctenus punctulatus: D.

FIGURE 10. Subfamily Mezirinae: Dorsal view and female genitalia Neuroctenus subandinus: A; Dorsal view Notapictinus