Laminiceps Costa, 1863

Brailovsky, Harry & Barrera, Ernesto, 2023, Illustrated key to the species in the genus Laminiceps Costa, 1863 (Hemiptera: Heteroptera: Coreidae: Acanthocephalini), with descriptions of twelve new species, Zootaxa 5352 (2), pp. 177-202 : 178-180

publication ID

https://doi.org/ 10.11646/zootaxa.5352.2.2

publication LSID

lsid:zoobank.org:pub:35D80A5A-C1E0-427C-9636-87790E1253FF

persistent identifier

https://treatment.plazi.org/id/03FE87E2-FF9A-FFC5-B2E5-FCCAFA7CBCD9

treatment provided by

Plazi

scientific name

Laminiceps Costa, 1863
status

 

Redescription of Laminiceps Costa, 1863 View in CoL View at ENA

Body shape. Body robust, medium to large, nearly oval, never parallel-sided. Head. Subquadrate; tylus extending beyond antenniferous tubercles by half length; juga visible from above, not extending past antenniferous tubercles, not expanded laterally; eyes large and hemispheric; postocular tubercle not protuberant, nearly with contour of eye, indistinct; ocellar tubercles large, raised; interocellar distance longer than distance between ocelli and eye; antenniferous tubercles unarmed; antennal segments I and II subequal, III the shortest, IV the longest, little longer than II and III together; segments I and II robust, stout or I relatively robust and II slender; segment III robust, weakly clavate or uniformly elongate, slender; segment IV fusiform; buccula roundly, truncate, reaching mideye; rostrum reaching posterior margin of mesosoternum or just anterior border of metasternum; rostral segment II the longest, IV the shortest and I and III subequal; rostral segment I not extending past head. Thorax. Pronotum. Trapeziform; collar distinct; callar region flattened, eventually slightly raised; anterior border slightly concave; anterior angles truncated, not expanded; anterolateral margins not emarginate; anterolateral and posterolateral margins smooth or crenulate; posterior margins straight, smooth; humeri not expanded; humeral angles obtuse, rounded or slightly subacute with or without short obtuse spiny projection; Scutellum. Triangular, flattened, wider that long or equilateral; apex subacute. Hemelytra. Macropterous, reaching the apex of last abdominal segment; eventually beyond them. Thoracic pleura. Metathoracic peritreme with two auricles, the anterior reniform the posterior acute; males with large supracoxal spines on metapleuron; females unarmed. Thoracic sternum. Pro-, meso-, and metasternum not sulcate. Legs. All femora ventrally armed with one row of spines; dorsally without tubercles or spines; hind femora incrassate in males, not in females; hind tibiae not expanded; inner face of tibiae strongly spined in males. Abdomen. Body widest through abdominal sterna IV–V, and varying from relatively narrow to much wider than folded hemelytra; connexival segments III–VII not spined posteroapically; abdominal spiracle IV–VII closer to base of each segment than to apex, farther from lateral edge. Male. Genital capsule. Posteroventral border almost straight to slightly convex, with lateral angles exposed ( Figs. 80–88 View FIGURES 80–85 View FIGURES 86–88 ). Paramere. Elongate, relatively slender, apically short, with stout hook, directed outward (Figs: 89–104). Female genitalia. Abdominal sternite VII with plica and fissure; plica transversally rectangular, narrow, just reaching anterior margin of sternite VII; valvulae VIII broad, enlarged dorsoventrally; laterotergite VIII short, triangular, with spiracle visible; laterotergite IX squarish, larger than laterotergite VIII. Integument. Head, pronotum, scutellum, clavus and corium with minute erect and decumbent silvey hairs; antennal segments I–III densely pubescent with decumbent hair-like setae; IV with tiny decumbent hairs; pro-, meso- and metasternum with short erect hair-like setae; pro-, meso- and metapleuron glabrous; abdominal sterna almost glabrous with short hair-like setae along middle third. Head impunctate; pronotum, clavus and corium densely punctate, each puncture small; scutellum striate with few punctures.

Discussion. Differential diagnosis. The genus Laminiceps Costa, 1863 , is characterized by a body robust, nearly oval, never parallel-sided; hind tibiae cylindrical not expanded; rostrum never extending to abdomen with segment II the longest, IV the shortest, and I subequal to III; scutellum wider than long; humeral angles obtuse, rounded or slightly subacute with or whitout short obtuse spiny projection; and metathoracic peritreme with two auricles. The related genus Salapia Stål, 1865 is similar to Laminiceps except for the elongate body; the scutellum, longer than wide, humeri expanded, and humeral angles subacute ( Brailovsky and Barrera, 2023).

Key to the known species of Laminiceps View in CoL

1. Antennal segment IV bicolorous, yellow with apical third or apical half black; pronotal disk with the anterolateral margins usually crenulate in males.............................................................................. 2. Antennal segment IV entirely black; pronotal disk with the anterolateral margins usually smooth in males............... 8

2. Pro-, meso- and metapleuron yellowish white ( Figs. 37 View FIGURES 37–43 , 76 View FIGURES 76–78 , 85 View FIGURES 80–85 , 97–98 View FIGURES 89–100 )................. L. ledezmae Brailovsky & Barrera View in CoL . Pro-, meso- and metapleuron black or chestnut brown or reddish brown, with or without shiny red or reddish orange spot at acetabulae........................................................................................... 3

3. Abdominal sterna III–VII, pleural abdominal margins III–VII and female genital plates pale yellowish orange; acetabulae without shiny red or reddish orange spot; posterolateral margins of pronotal disk and humeri black ( Figs. 35 View FIGURES 28–36 , 74 View FIGURES 68–75 )................................................................................. L. peruviensis Brailovsky & Barrera View in CoL

. Abdominal sterna III–VII black to reddish brown; female genital plates black to reddish brown with laterotergites VIII–IX reddish orange; pleural abdominal margins III–VII reddish orange or bicolorous; humeri and posterolateral margins of pronotal disk reddish orange.................................................................................... 4

4. Acetabulae without shiny red to reddish orange spot; antennal segment II stout, III stout, nearly clavate ( Figs. 38 View FIGURES 37–43 , 70 View FIGURES 68–75 )........................................................................................... L. curiosus sp. nov.

. Acetabulae with shiny red to reddish orange spot; antennal segments II–III robust or slender.......................... 5

5. Femora bicolorous black to dark castaneous brown with apical third yellow; antennal segments II–III relatively robust; connexival segments III–VI black with upper margin shiny red ( Figs. 36 View FIGURES 28–36 , 75 View FIGURES 68–75 )............. L. incultus Brailovsky & Barrera View in CoL

. Femora entirely black; antennal segments II–III slender, elongate; connexival segments III–VI with another color combination......................................................................................... 6

6 Connexival segments III–VII and pleural abdominal margins III–VII shiny reddish orange; humeral angles expanded, apically acute with the spine directed backward; pronotal disk with complete shiny red longitudinal stripe, running across the middle from callus to posterior border; antennal segments II–III elongate, slender ( Figs. 39 View FIGURES 37–43 , 77 View FIGURES 76–78 ).............. L. genuinus sp. nov.

. Connexival segments III–VII and pleural abdominal margins III–VII bicolorous, black with posterior third yellow; humeral angles obtuse or slightly exposed......................................................................... 7

7. Apex of scutellum shiny red; pronotal disk with an incomplete shiny red longitudinal stripe running across middle third; dorsal abdominal segments black; humeral angles obtuse and rounded; anterolateral margins of pronotal disk weakly crenulate; pubescence of pronotal disk dense and minute; antennal segments II–III elongate, slender ( Figs. 33–34 View FIGURES 28–36 , 72–73 View FIGURES 68–75 )........................................................................................... L. megaera (Burmeister) View in CoL

. Apex of scutellum black; pronotal disk without shiny red longitudinal stripe; dorsal abdominal segments black and laterally shiny reddish orange; humeral angles exposed; anterolateral margins of pronotal disk densely crenulate; pubescence of pronotal disk dense, with erect and stout silvery hairs; antennal segments II–III stout, robust ( Figs. 32 View FIGURES 28–36 , 71 View FIGURES 68–75 )................................................................................................. L. bicolor Brailovsky & Barrera View in CoL

8. Yellowish transverse fascia on corium always present, complete and straight...................................... 9

. Yellowish transverse fascia on corium irregular (zig–zag) or fascia absent....................................... 17

9. Scutellum entirely yellowish orange ( Figs. 1–2 View FIGURES 1–9 , 40–41 View FIGURES 37–43 )...................................... L. sumptuosus Distant View in CoL

. Scutellum mostly black, with or without bluish green reflections and never entirely yellowish orange.................. 10

10. Scutellum yellowish orange with two broad, black longitudinal stripes running at each side of midline................. 11

. Scutellum entirely black or with narrow yellowish orange longitudinal stripe across midline......................... 12

11. Connexival segments III–VII and pleural abdominal margins III–VII black with anterior border yellow ( Figs. 4 View FIGURES 1–9 , 78 View FIGURES 76–78 )................................................................................. L. conjunctus Brailovsky View in CoL (in part)

. Connexival segments III–VII and pleural abdominal margins III–VII entirely yellowish orange ( Figs. 3 View FIGURES 1–9 , 42 View FIGURES 37–43 )... L. ducalis (Stål) View in CoL

12. Scutellum black with narrow, yellowish orange, longitudinal stripe across midline................................. 13

. Scutellum entirely black............................................................................... 15

13. Posterolateral margins and posterior margin of pronotal disk black; propleuron entirely yellow; meso- and metapleuron yellow, each with reddish brown spot close to posterior margin ( Figs. 12 View FIGURES 10–18 , 69 View FIGURES 68–75 , 86 View FIGURES 86–88 , 99–100 View FIGURES 89–100 )..................... L. navus sp. nov.

. Posterolateral margins and posterior margin of pronotal disk yellow; pro-, meso- and metapleuron yellow with brown reddish brown quadrate spot.................................................................................. 14

14. Clavus black with anterior angle and border of claval commissure yellow; corium mostly black, with wide yellow transverse fascia; connexival segments III–VII and pleural abdominal margins III–VII yellow; rim of abdominal spiracle yellow ( Figs. 5 View FIGURES 1–9 , 43 View FIGURES 37–43 , 83 View FIGURES 80–85 , 93–94 View FIGURES 89–100 )........................................................................... L. festivus Distant View in CoL

. Clavus pale yellowish orange with black elongate spot close to posterior third; corium mostly pale yellowish orange; connexival segments III–VII and pleural abdominal margins III–VII black with anterior border yellow; rim of abdominal spiracle dark brown ( Figs. 4 View FIGURES 1–9 , 78 View FIGURES 76–78 ).......................................................... L. conjunctus Brailovsky View in CoL (in part) 15. Trochanters black to reddish brown; meso- and metapleuron entirely yellowish orange ( Figs. 10 View FIGURES 10–18 , 50 View FIGURES 44–51 ).... L. proximus Breddin View in CoL

. Trochanters yellow; meso- and metapleuron yellow to yellowish orange with wide black to reddish brown spot.......... 16

16. Posterolateral margins and posterior margin of pronotal disk yellow to yellowish orange; propleuron yellow with small black discoidal spot at acetabulae; connexival segments III–VII yellow to yellowish orange ( Figs. 9 View FIGURES 1–9 , 49 View FIGURES 44–51 ).... L. herrerai Brailovsky View in CoL

. Posterolateral margins and posterior margin of pronotal disk black; propleuron entirely yellow; connexival segments III–IV yellow to yellowish orange and V–VII black ( Figs. 6–7 View FIGURES 1–9 , 46–48 View FIGURES 44–51 , 80–81 View FIGURES 80–85 , 89–90 View FIGURES 89–100 )..................... L. fasciatus (Dallas) View in CoL

17. Yellowish transverse fascia on corium irregular (zig–zag) ( Figs. 13 View FIGURES 10–18 , 53 View FIGURES 52–59 )............................. L. lentus sp. nov.

- Yellowish transverse fascia on corium absent.............................................................. 18

18. Scutellum pale reddish orange or yellow with tip, or basal angles or broad elongate spot running lateral to midline black.. 19

. Scutellum black with or without bluish green reflections and tip black or yellow.................................. 22

19. Scutellum entirely pale reddish orange; pronotal disk and thorax pale reddish orange ( Figs. 8 View FIGURES 1–9 , 79)............................................................................................... L. vergarae Brailovsky & Barrera View in CoL

. Scutellum mostly yellow; pronotal disk and thorax black with or without yellow or pale orange marks................. 20

20. Middle third of pronotal disk with broad, complete, arcuate, pale yellowish transverse fascia; collar and callar area black; apical margin of corium black; scutellum yellow, tip black; clavus yellow with posterior third black; abdominal sterna III–VII black ( Figs. 21 View FIGURES 19–27 , 52 View FIGURES 52–59 )......................................................................... L. infrequens sp. nov.

. Middle third of pronotal disk without pale yellow arcuate, transverse fascia; apical margin of corium pale yellow or black with large orange discoidal spot close to middle third; scutellum yellow, basal angles black or yellow, with broad elongate black marks running laterally until middle third; clavus black with basal angle yellow to orange........................... 21

21. Scutellum yellow with basal angles black; apical margin of corium black with large orange discoidal spot close to middle third; abdominal sterna III–VII black, midline symmetrically with yellow transverse paired of spots at each side and near to posterior border of each sternite; pleural abdominal margins bicolorous, yellowish orange with anterior third black; pronotal disk with T-shaped yellowish orange mark near to midline; collar orange; callar region black; femora black with apical third yellow, tip black; gonocoxae I black; laterotergites VIII–IX yellowish orange ( Figs. 22 View FIGURES 19–27 , 54 View FIGURES 52–59 ).................... L. factiosus sp. nov.

. Scutellum yellow with broad, longitudinal, elongate black mark running laterally, until middle third; apical margin of corium yellow without orange discoidal spot; abdominal sternite III–VII yellowish orange with rim of abdominal spiracles reddish brown; pleural abdominal margins yellowish orange; collar and callar region yellow; femora black; genital plates yellowish orange ( Figs. 11 View FIGURES 10–18 , 51 View FIGURES 44–51 ).................................................................... L. fundatus sp. nov.

22. Callar region yellow.................................................................................. 23

. Callar region black or dark brown or brownish castaneous with or without bluish green reflections.................... 28

23. Hemelytral membrane with wide semidiscoidal transluscent window ( Figs. 23–25 View FIGURES 19–27 , 64–66 View FIGURES 60–67 , 82 View FIGURES 80–85 , 91–92 View FIGURES 89–100 )........................................................................................... L. fenestratus (Burmeister) View in CoL (in part). Hemelytral membrane dark brown without transluscent window............................................... 24

24. Thorax black; abdominal sterna III–VII black ( Figs. 19–20 View FIGURES 19–27 , 44–45 View FIGURES 44–51 , 88 View FIGURES 86–88 , 103–104 View FIGURES 101–104 )............... L. viduus Breddin View in CoL (in part)

. Thorax mostly yellowish orange; abdominal sterna III–VII yellowish orange or black.............................. 25

25. Head ventrally yellow; fore and mid femora bicolorous, anterior half yellow, posterior half black; hind femora yellow, tip black; abdominal sterna III–VII yellowish orange ( Figs. 29 View FIGURES 28–36 , 56 View FIGURES 52–59 , 87 View FIGURES 86–88 , 101–102 View FIGURES 101–104 )........................... L. eustoliana sp. nov.

. Head ventrally black with wide yellow longitudinal stripe close to eyes; fore and mid femora black; hind femora black or bicolorous.......................................................................................... 26

26. Coxae yellow; trochanters yellow with pale brown spot ( Figs. 14–15 View FIGURES 10–18 , 58–59 View FIGURES 52–59 , 85 View FIGURES 80–85 , 97–98 View FIGURES 89–100 )........... L. lutescens Brailovsky View in CoL

. Coxae and trochanters black to reddish brown.............................................................. 27

27. Abdominal sterna III–VII black; scutellar tip yellow ( Figs. 16 View FIGURES 10–18 , 60 View FIGURES 60–67 )............................... L. excelsus sp. nov.

. Abdominal sterna III–VII yellow; scutellar tip black ( Figs. 17 View FIGURES 10–18 , 57 View FIGURES 52–59 )................................ L. halatus sp. nov.

28. Hemelytral membrane dark brown with wide, transluscent window ( Figs. 23–25 View FIGURES 19–27 , 64–66 View FIGURES 60–67 , 91–92 View FIGURES 89–100 )............................................................................................... L. fenestratus (Burmeister) View in CoL (in part)

. Hemelytral membrane dark brown without transluscent window............................................... 29

29. Propleuron yellow; meso- and metapleuron yellow with brownish black spot near posterior margin; fore and mid femora brownish black; hind femora bicolorous, brownish black with anterior third yellow; abdominal sterna III–VII yellow; connexival segments III–VII and pleural abdominal margins III–VII black; pronotal disk, scutellar disk, clavus and corium with densely bluish green reflections ( Figs. 28 View FIGURES 28–36 , 55 View FIGURES 52–59 , 84 View FIGURES 80–85 , 95–96 View FIGURES 89–100 ).............................................. L. gelidus sp. nov.

. Pro-, meso- and metapleuron black; abdominal sterna III–VII mostly black to reddish brown; connexival segments III–VII and pleural abdominal margins III–VII yellowish orange; pronotal disk, scutellar disk, clavus and corium without dense bluish green reflections..................................................................................... 30

30. Pro-, meso- and meta-acetabulae with yellowish orange discoidal spot; tylus yellow to shiny orange; middle third of pronotal disk with orange longitudinal, irregular stripe interrupted near middle third or irregular across the total disk............. 31

. Pro-, meso- and meta-acetabulae black to brownish black without orange spot; tylus black; middle third of pronotal disk without orange longitudinal stripe....................................................................... 32

31. Femora bicolorous, black with posterior third orange, tip black; connexival segments III–VII and pleural abdominal margins III–VII yellowsish orange ( Figs. 18 View FIGURES 10–18 , 61 View FIGURES 60–67 )................................................... L. aburtonia sp. nov.

. Femora black; connexival segments III–VII and pleural abdominal margins III–VII bicolorous, black with posterior third yellow ( Figs. 30–31 View FIGURES 28–36 , 62–63 View FIGURES 60–67 ).................................................. L. obscurior Brailovsky & Barrera View in CoL

32. Femora bicolorous, black with posterior third orange, tip black; anterolateral margins of pronotal disk finely crenulate; scutellar tip yellowish orange; humeri black with apical margin yellow ( Figs. 19–20 View FIGURES 19–27 , 44–45 View FIGURES 44–51 , 88 View FIGURES 86–88 , 103–104 View FIGURES 101–104 )... L. viduus Breddin View in CoL (in part)

. Femora black to dark reddish castaneous; anterolateral margins of.. pronotal disk conspicuously crenulate with stout, obtuse spines; scutellar tip black; humeri widely shiny orange ( Figs. 26–27 View FIGURES 19–27 , 67–68 View FIGURES 60–67 View FIGURES 68–75 )....................... L. superbus Breddin View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Coreidae

Tribe

Acanthocephalini

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