Limnocoris, Stål, 1860
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https://doi.org/10.11646/zootaxa.4629.4.1 |
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publication LSID |
lsid:zoobank.org:pub:0DB18F90-AAFD-4FB7-B1ED-09A86A707C9F |
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persistent identifier |
https://treatment.plazi.org/id/03E58815-E938-FFB3-FF61-F16FFA295E1D |
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treatment provided by |
Plazi (2019-07-09 06:30:40, last updated 2024-11-26 22:16:19) |
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scientific name |
Limnocoris |
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Key to the species of Limnocoris View in CoL of North America
1. Embolium with lateral margin prolonged into a long and curved spine; hemelytral membrane distinctly reduced ( Fig. 11A View FIGURE 11 ).......................................................................... Limnocoris moapensis (La Rivers) View in CoL
1’. Embolium with lateral margin convex, not prolonged into a long and curved spine; hemelytral membrane developed (e.g., Figs. 3A, C View FIGURE 3 ).............................................................................................. 2
2. Posterior margin of propleuron shallowly convex at mid-length ( Figs. 1 View FIGURE 1 B–D); mesosternum with longitudinal row of golden setae ( Fig. 2C View FIGURE 2 ); abdominal sterna with dispersed elongate golden setae ( Fig. 2H View FIGURE 2 ); lateral margin of female subgenital plate with elongate golden setae ( Fig. 2H View FIGURE 2 ).......................................................................... 3
2’. Posterior margin of propleuron straight ( Fig. 1A View FIGURE 1 ); mesosternum without longitudinal row of golden setae ( Fig. 2D View FIGURE 2 ); abdominal sterna without dispersed elongate setae (e.g, Fig. 2G View FIGURE 2 ); lateral margin of female subgenital plate without elongate golden setae (e.g., Fig. 2G View FIGURE 2 )....................................................................................... 10
3. Posterolateral corners of abdominal segments III–V produced posteriorly, spinose ( Fig. 2E View FIGURE 2 ); body length ≥ 9.20 mm ...... 4
3’. Posterolateral corners of abdominal segments III–V not produced posteriorly, narrowly rounded to right angled, not spinose ( Fig. 2F View FIGURE 2 ); body length <9.20 mm ........................................................................ 5
4. Pubescent area of propleuron extended posteriorly to approximately halfway along lateral margin ( Fig. 1C View FIGURE 1 ); fossa of mesosternal carina shallow ( Fig. 17D View FIGURE 17 ).................................................. Limnocoris virescens Montandon View in CoL
4’. Pubescent area of propleuron not extended posteriorly along lateral margin (as in Fig. 1D View FIGURE 1 ); fossa of mesosternal carina deep ( Fig. 9D View FIGURE 9 ).......................................................................... Limnocoris major n. sp.
5. Mesosternal carina with elongate golden setae on lateral margin; fossa shallow, elongate, and narrow ( Figs. 3D, F View FIGURE 3 ).................................................................................. Limnocoris chaetocarinatus n. sp.
5’. Mesosternal carina without elongate setae on lateral margin; fossa not as above (e.g., Figs. 4C, 4E View FIGURE 4 , 13C, 13E View FIGURE 13 )............ 6
6. Pubescent area of propleuron not extended posteriorly on lateral margin (as in Fig. 1D View FIGURE 1 ); fossa of mesosternal carina deep, elliptical, sometimes with subtle angles at greatest width ( Figs. 13C, E View FIGURE 13 ); female subgenital plate with posterior margin evenly convex ( Fig. 13D View FIGURE 13 )........................................................... Limnocoris panamensis La Rivers View in CoL
6’. Pubescent area of propleuron distinctly extended posteriorly on lateral margin ( Fig. 1B View FIGURE 1 ); fossa of mesosternal carina shallow and semicircular ( Fig. 4C View FIGURE 4 ) or fossa obscured by lateral margins touching at midline ( Figs. 5C View FIGURE 5 , 15D View FIGURE 15 , 16 View FIGURE 16 D–E); female subgenital plate with posterior margin tapering posteriorly ( Figs. 4D View FIGURE 4 , 5D View FIGURE 5 , 15E View FIGURE 15 , 16G View FIGURE 16 )......................................... 7
7. Distal margin of labrum bluntly pointed ( Fig. 16F View FIGURE 16 ); mesosternal carina without excavation posterior to fossa in lateral view ( Figs. 16H View FIGURE 16 )................................................................. Limnocoris signoreti Montandon View in CoL
7’. Distal margin of labrum distinctly acuminate ( Figs. 4C View FIGURE 4 , 5C View FIGURE 5 , 15D View FIGURE 15 ); mesosternal carina with small excavation posterior to fossa in lateral view ( Figs. 2A View FIGURE 2 , 4E View FIGURE 4 , 5E View FIGURE 5 )......................................................................... 8
8. Fossa of mesosternal carina with lateral margins generally touching each other at middle, leaving a wide, circular or subtriangular posterior opening and small separation anteriorly ( Fig. 4C View FIGURE 4 ); lateral lobe of male tergum VIII with lateral margin shallowly concave in anterior half ( Fig. 6D View FIGURE 6 ); posterior margin of male sternum VIII with medial notch (as in Fig. 18B View FIGURE 18 ).......................................................................................... Limnocoris hintoni La Rivers View in CoL
8’. Fossa of mesosternal carina with lateral margins touching each other along most of its length, leaving only a small opening at anterior and posterior ends ( Figs. 5C View FIGURE 5 , 15D View FIGURE 15 ); lateral lobe of male tergum VIII with lateral margin straight in anterior half ( Figs. 6F View FIGURE 6 , 19B View FIGURE 19 ); posterior margin of male sternum VIII without medial notch........................................... 9
9. Body color usually brown to dark brown; hemelytral membrane without pale spot medially ( Fig. 5A View FIGURE 5 )............................................................................................ Limnocoris inornatus Montandon View in CoL
9’. Body color usually light brown to yellowish; hemelytral membrane with pale spot medially ( Figs. 15A, C View FIGURE 15 )......................................................................................... Limnocoris pygmaeus La Rivers View in CoL
10. Mesosternal carina with median projection ( Figs. 2B View FIGURE 2 , 18E View FIGURE 18 ); fossa with small aperture anteriorly ( Figs. 2D View FIGURE 2 , 18C View FIGURE 18 ); posterior margin of male sternum VIII with medial notch ( Fig. 18B View FIGURE 18 ).................................. Limnocoris zacki n. sp.
10’. Mesosternal carina without median projection ( Figs. 7 View FIGURE 7 F–G, 8E, 12E); fossa without anterior aperture ( Figs. 7D View FIGURE 7 , 8C View FIGURE 8 , 12C View FIGURE 12 ); posterior margin of male sternum VIII without medial notch.................................................. 11
11’. Mesosternal carina with anterior projection lower than fossa ( Figs. 7 View FIGURE 7 F–G, 8E); fossa not open anteriorly, ranging from rounded to subtriangular; ridge without sulcus ( Figs. 7D View FIGURE 7 , 8C View FIGURE 8 )........................................................ 12
12. Region between anterior projection and fossa of mesosternal carina almost straight or slightly sinuate in lateral view, and angled dorsoventrally ~20 degrees from the long body axis ( Figs. 7 View FIGURE 7 F–G); antennal flagellomeres not partially fused; apex of left medial lobe of male tergum VIII distinctly angled laterally ( Fig. 10B View FIGURE 10 ).......................... Limnocoris insularis Champion View in CoL
12’ Region between anterior projection and fossa of mesosternal carina concave in lateral view, and angled dorsoventrally ~70 degrees from the long body axis ( Fig. 8E View FIGURE 8 ); antennal flagellomeres partially fused; apex of left medial lobe of male tergum VIII slightly angled laterally ( Fig. 10D View FIGURE 10 )................................................... Limnocoris lutzi La Rivers View in CoL
FIGURE 1. Structures of Limnocoris. (A–D) Propleuron, white arrows indicate posterior end of pubescent area, yellow arrows indicate mid-lateral region of posterior margin, (A) L. zacki n. sp., (B) L. inornatus, (C) L. virescens, (D) L. chaetocarinatus n. sp. (E–H) Part of abdominal segments, showing pubescence patterns of sternum II (circled), (E) L. moapensis, (F) L. submontandoni, (G) L. nanus n. sp., and (H) L. stali. pa = pubescent area, pra = pruinose area.
FIGURE 2. (A–B) Lateral view of meso- and metasternal carinae, (A) L. pygmaeus, white arrow indicates anterior projection, black arrow indicates excavation posterior to fossa, (B) L. zacki n. sp., black arrow indicates median projection of mesosternal carina. (C–D) Ventral view of meso- and metasternal carinae, (C) L. inornatus, white arrow indicates row of longitudinal golden setae between mesobasisternum and mesoepisternum, (D) L. zacki n. sp., white arrow indicates fossa partially open anteriorly, dotted lines indicate anterior and posterior limits of fossa. (E–F) Ventral view of abdominal segments III–V, (E) L. virescens, black arrows indicate posterolateral corners, (F) L. panamensis. (G–H) Ventral view of female abdominal segments IV–IX, (G) L. moapensis, sgp = subgenital plate, (H) L. major n. sp., white arrows indicate elongate golden setae, gs= posterolateral elongate golden setae on lateral margin of subgenital plate.
FIGURE 3. Limnocoris chaetocarinatus n. sp. (A) Dorsal habitus and (B) ventral habitus of female holotype, hindwing brachypterous (UMC), (C) dorsal habitus of male paratype, hindwing macropterous (UMC) (D) ventral view of head and part of thorax, white arrow indicates elongate hairs on the mesosternal carina, (E) terminal abdominal sterna of female, and (F) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–C. cls = claval suture, cor = corium, emb = embolium, lbr = labrum, mbr = hemelytral membrane, mbs = mesobasisternum, mpl = maxillary plate, mps = mesoepisternum, mtc = metasternal carina, mtp = metapleuron, pbs = probasisternum, plc = posterolateral corner of pronotum, prp = propleuron, pst = prosternellum.
FIGURE 4. Limnocoris hintoni La Rivers. (A) Dorsal habitus and (B) ventral habitus of female paratype, hindwing macropterous (USNM), (C) ventral view of head and part of thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae, arrow indicates small projection between anterior projection and fossa. Size bar = 1.00 mm and applies only to Figs. A–B.
FIGURE 5. Limnocoris inornatus Montandon. (A) Dorsal habitus and (B) ventral habitus of female, hindwing macropterous (UMC), (C) ventral view of head and part of thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.
FIGURE 6. Structures of male terminalia. (A, C, E) 6th and 7th abdominal terga, (B, D, F) 8th abdominal tergum. (A–B) Limnocoris chaetocarinatus n. sp., (C–D) L. hintoni, and (E–F) L. inornatus. agp = accessory genitalic process, ll = lateral lobe, lml = left medial lobe, ltr = lateral lobe of tergum VI (delimited by dotted line), ml = medial lobe, rml = right medial lobe, snt = small notch.
FIGURE 7. Limnocoris insularis Champion. (A) Dorsal habitus and (B) ventral habitus of female holotype, hindwing brachypterous (BMNH), (C) dorsal habitus of female holotype of L. alcorni n. syn., hindwing macropterous (CAS), (D) ventral view of part of thorax, (E) terminal abdominal sterna of female, (F) lateral view of mesosternal carina of holotype, and (G) lateral view of meso- and metasternal carinae of holotype of L. alcorni n. syn. Size bar = 1.00 mm and applies only to Figs. A–C.
FIGURE 8. Limnocoris lutzi La Rivers. (A) Dorsal habitus and (B) ventral habitus of male paratype [=allotype], hindwing brachypterous (CAS), (C) ventral view of head and thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.
FIGURE 9. Limnocoris major n. sp. (A) Dorsal habitus and (B) ventral habitus of female holotype, hindwing brachypterous (UMC), (C) dorsal habitus of female paratype, hindwing macropterous (MZUSP), (D) ventral view of part of thorax, (E) ter- minal abdominal sterna of female, and (F) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–C.
FIGURE 10. Structures of male terminalia. (A, C, E) 6th and 7th abdominal terga, (B, D, F) 8th abdominal tergum. (A–B) Limnocoris insularis, (C–D) L. lutzi, and (E–F) L. major n. sp.
FIGURE 11. Limnocoris moapensis (La Rivers). (A) Dorsal habitus and (B) ventral habitus of female, hindwing brachypterous (UMC), (C) ventral view of head and part of thorax, (D) terminal abdominal sterna of female, (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.
FIGURE 12. Limnocoris nanus n. sp. (A) Dorsal habitus and (B) ventral habitus of male holotype, hindwing brachypterous (UMC), (C) ventral view of part of thorax, arrow indicates fine sulcus on midline of anterior ridge, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.
FIGURE 13. Limnocoris panamensis La Rivers. (A) Dorsal habitus and (B) ventral habitus of female paratype, hindwing brachypterous (USNM), (C) ventral view of part of head and thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.
FIGURE 15. Limnocoris pygmaeus La Rivers. (A) Dorsal habitus and (B) ventral habitus of female paratype, hindwing macropterous (CAS), (C) dorsal habitus of male, hindwing macropterous (UMC), (D) ventral view of part of head and thorax, (E) terminal abdominal sterna of female, and (F) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–C.
FIGURE 16. Limnocoris signoreti Montandon. (A) Dorsal habitus and (B) ventral habitus of male, hindwing macropterous (UMC), (C) dorsal habitus of female holotype of L. laucki n. syn., hindwing macropterous (CAS), (D–E) ventral view of part of thorax, (F) head and part of prosternum, (G) terminal abdominal sterna of female, and (H) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–C.
FIGURE 17. Limnocoris virescens Montandon. (A) Dorsal habitus and (B) ventral habitus of male, hindwing brachypterous (EMEC), (C) dorsal habitus of male, hindwing macropterous (EMEC), (D) ventral view of part of thorax, (E) terminal abdominal sterna of female, and (F) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–C.
FIGURE 18. Limnocoris zacki n. sp. (A) Dorsal habitus and (B) ventral habitus of male holotype, hindwing brachypterous (UMC), with detail of notch at posterior margin of abdominal sternum VIII, (C) ventral view of part of head and thorax, (D) terminal abdominal sterna of female, and (E) lateral view of meso- and metasternal carinae. Size bar = 1.00 mm and applies only to Figs. A–B.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Nepomorpha |
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