Pentatominae
Creators: name: Barros, Lurdiana D.
name: Paim, Marcelo R.
name: Krein, Verônica
name: Carabajal, Victor
name: Brandão, Marcela N.
name: Bernardes, Paula De O.
name: Lindner, Mariana F.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae

description: Key to the species of Pentatominae on grain crops of economic importance in Rio Grande do Sul
(including only the species listed in this work)
1 Abdominal sternite 3 with process (Fig. 21)................................................................ 2
- Abdominal sternite 3 without process.................................................................... 12
2 Mandibular plates surpassing the clypeus and acute apically (Fig. 22)........................... Arvelius albopunctatus
- Mandibular plates subequal to clypeus and rounded apically (Fig. 102)........................................... 3
3 Living specimens yellowish castaneous to green, pronotum with a reddish-brown trans-humeral band (Figs 100, 102)........................................................................................... Piezodorus guildinii
- Living specimens green, pronotum without reddish-brown trans-humeral band (Fig. 92)............................. 4
4 Abdominal spine short, rounded, not reaching coxae (Fig. 93); spiracles with juxtaposed green maculae, without callosity (Fig. 94, black arrow).......................................................................... Nezara viridula
- Abdominal spine variable in size, rounded or acute, spiracles with juxtaposed maculae, concolourous or not, and with a callosity............................................................................................. 5
5 Humeral angles produced into a spine (Figs 24, 42).......................................................... 6
- Humeral angles not produced (Figs 30, 48)................................................................. 7
6 Lateral margins of body yellowish, apical portion of head broad (Fig. 25)........................... Chinavia armigera
- Lateral margins of body reddish to orange, apical portion of head narrow (Fig. 42)................. Chinavia nigridorsata
7 Abdominal spine surpassing the mesocoxae (Fig. 45)........................................... Chinavia obstinata
- Abdominal spine not reaching the mesocoxae............................................................... 8
8 Abdominal spine reaching the anterior margin of metacoxae (Fig. 35)............................... Chinavia herbida
- Abdominal spine not reaching the anterior margin of metacocoxae.............................................. 9
9 Cicatrices of pronotum and basal angles of scutellum black (Fig. 30)........................................... 10
- Cicatrices of pronotum and basal angles of scutellum concolorous with remaining dorsal surface, never black........... 11
10 Antennae black (Fig. 30), coxae, trochanters, apices of femora and tibiae red (Fig. 32)............. Chinavia erythrocnemis
- Antennae and legs green (Fig. 39)....................................................... Chinavia impicticornis
11 Lateral margin of body broadly red to orange red (Figs 47, 48), posterior margin of connexivum black (Fig. 47).................................................................................................. Chinavia pengue
- Lateral margin of body narrowly light red (Figs 27, 28), posterior margin of connexivum concolourous with dorsal surface (Fig. 27)..................................................................................... Chinavia aseada
12 Live specimens green; distal apex of all femora bearing a strong spine (Fig. 79, black arrow)........................ 13
- Live specimens pale yellow to black; distal apex of all femora unarmed......................................... 14
13 Humeral angles strongly developed, directed laterally, reddish (Fig. 80); corium with multiple pale callosities, irregularly distributed (Fig. 78)......................................................................... Loxa deducta
- Humeral angles slightly developed, directed anteriorly, black (Fig. 83); each corium with a single pale callosity (Fig. 82)........................................................................................ Mayrinia curvidens
14 Inferior surface of all femora with small tubercles bearing setae (Fig. 18)........................................ 15
- Inferior surface of all femora lacking tubercles............................................................. 19
15 Anterolateral margins of pronotum straight (Fig. 16); corium banded, not punctate and with minute teeth on lateral margin (Fig. 17); femoral tubercles arranged in two rows................................................... Agroecus griseus
- Anterolateral margins of pronotum concave (Figs 13, 57); corium without bands or minute teeth on lateral margin, not punctate; femoral tubercles arranged irregularly.................................................................... 16
16 Humeral angles quadrate (Fig. 13); apex of scutellum immaculate............................... Adustonotus irroratus
- Humeral angles acute (Figs 57, 61, 63); apex of scutellum maculate............................................ 17
17 Anterolateral margins of pronotum serrate (Fig. 57); legs without black spots; membrane of hemelytra with linear veins (Fig. 56).......................................................................... Euschistus (Euschistus) heros
- Anterolateral margins of pronotum with spaced denticles (Figs 61, 63); legs with black spots (Fig. 59); membrane of hemelytra with reticulated veins (Fig. 60).......................................................................... 18
18 Dorsal surface of body wrinkled; humeral angles rounded apically and directed anterolaterally (Fig. 61); conspicuous macule on apex of scutellum (Fig. 59)................................................... Euschistus (Lycipta) picticornis
- Dorsal surface of body not wrinkled; humeral angles acute apically and directed laterally (Fig. 63); inconspicuous macule on apex of scutellum (Fig. 63)..................................................... Euschistus (Lycipta) triangulator
19 Basal angles of scutellum not foveate (Fig. 7).............................................................. 20
- Basal angles of scutellum foveate....................................................................... 21
20 Anterolateral margins of pronotum convex (Figs 6, 8); basal angles of scutellum not black (Fig. 7); mandibular plates subequal to clypeus and divergent apically (Fig. 8)................................................... Acledra bonariensis
- Anterolateral margins of pronotum straight to slightly concave (Figs 10, 11); basal angles of scutellum black (Figs 10, 11); mandibular plates longer than clypeus and convergent apically (Fig. 11).............................. Acledra fraterna
21 First labiomere surpassing the bucculae (Fig. 86, black arrow)................................................. 22
- First labiomere between the bucculae (Fig. 76, black arrow).................................................. 23
22 Body color castaneous; humeral angles black, slightly produced and obtuse apically (Fig. 85); scutellum with a small pale yellow callosity on each angle, the callosities on basal angles not extending to lateral margins (Fig. 85). Mormidea notulifera
- Body color black; humeral angles variable, from a small round projection (Fig. 90) to an acute spine apically (Fig. 89); scutellum with a pale yellow callosity on each angle, the ones on basal angles extending through half of lateral margins (Fig. 88).......................................................................................... Mormidea v-luteum
23 Anterolateral margins of pronotum straight (Fig. 75)........................................... Hypatropis inermis
- Anterolateral margins of pronotum concave (Fig. 51)........................................................ 24
24 Apex of mandibular plates acute (Figs 51, 53).............................................................. 25
- Apex of mandibular plates rounded (Figs 96, 98)........................................................... 26
25 Humeral angles concolorous with pronotum (Figs 50, 51); scutellum without pale line on apical margin (Fig. 50)............................................................................................... Diceraeus furcatus
- Humeral angles black (Fig. 53); scutellum with pale line along apical margin (Fig. 53)............ Diceraeus melacanthus
26 Mandibular plates subequal to clypeus (Figs 98, 105); antennomere 2 longer than antennomere 1 (Fig. 104)............ 27
- Mandibular plates smaller than clypeus (Figs 66, 73); antennomere 2 shorter than antennomere 1 (Fig. 110)............ 30
27 Body slender; scutellum with large pale callosities (Figs 96, 98)............................................... 28
- Body oval; scutellum without callosities.................................................................. 29
28 Apex of radial vein of corium with a large pale yellow callosity; body ferruginous to dark castaneous, with one pair of yellow callosities on pronotum (Fig. 96)............................................................ Oebalus poecilus
- Apex of radial vein of corium without callosity; body castaneous, with one pair of small yellow spots, not callosities, on pronotum (Fig. 98).................................................................. Oebalus ypsilongriseus
29 Humeral angles slightly produced, rounded apically, directed laterally (Figs 104, 105); scutellum with dark apex (Fig. 104); connexivum concolor to dorsal surface........................................................ Thyanta humilis
- Humeral angles produced, acute apically, directed anterolaterally (Fig. 107); scutellum apex concolor to dorsal surface; connexivum with orange maculae (Fig. 107).................................................... Thyanta perditor
30 Outline of anterolateral margins of pronotum not punctate (Figs 110, 113); antennomere 4 cylindrical (Fig. 2); sub lateral margin of abdomen not concolorous with abdominal venter (Figs 111, 115)...................................... 31
- Outline of anterolateral margins of pronotum uniformly punctate (Figs 66, 73); antennomere 4 conical (Fig. 66); sub lateral margin of abdomen concolorous with abdominal venter (Fig. 67).............................................. 32
31 Small specimens (not surpassing 12.00 mm); legs red to dark red; connexivum margin light castaneous with small black spot at apex (Fig.111)............................................................................ Tibraca exigua
- Large specimens (surpassing 12.00 mm); legs castaneous, concolor with the venter; connexivum with dark castaneous macule on anterior angles (Fig. 115)............................................................ Tibraca limbativentris
32 Dorsal surface setose (Fig. 72); anterior angles of pronotum acute (Fig. 73, black arrow)............. Glyphepomis setigera
- Dorsal surface glabrous; anterior angles of pronotum rounded (Fig. 66)......................................... 33
33 Abdominal sternites with densely distributed punctures medially, and sparse on sub lateral margin (Fig. 67)............................................................................................. Glyphepomis adroguensis
- Abdominal sternites with uniformly distributed punctures (Fig. 70)............................ Glyphepomis pelotensis
description: Published as part of Barros, Lurdiana D., Paim, Marcelo R., Krein, Verônica, Carabajal, Victor, Brandão, Marcela N., Bernardes, Paula De O. & Lindner, Mariana F., 2021, Illustrated guide to Pentatominae (Hemiptera: Pentatomidae) species associated with the four main grain crops in Rio Grande do Sul state, Brazil, pp. 430-478 in Zootaxa 4958 (1) on pages 433-435, DOI: 10.11646/zootaxa.4958.1.27, http://zenodo.org/record/4692176