Illustrated key to the species in the genus Laminiceps Costa, 1863 (Hemiptera: Heteroptera: Coreidae: Acanthocephalini), with descriptions of twelve new species Author Brailovsky, Harry 0000-0001-7456-5678 Instituto de Biología, Universidad Nacional Autónoma de México, apdo postal 70153, Ciudad de México 04510, México. & coreidae @ ib. unam. mx; https: // orcid. org / 0000 - 0001 - 7456 - 5678 coreidae@ib.unam.mx Author Barrera, Ernesto 0000-0001-8276-2553 Instituto de Biología, Universidad Nacional Autónoma de México, apdo postal 70153, Ciudad de México 04510, México. & ernesto. barrera @ ib. unam. mx; https: // orcid. org / 0000 - 0001 - 8276 - 2553 ernesto.barrera@ib.unam.mx text Zootaxa 2023 2023-10-03 5352 2 177 202 http://dx.doi.org/10.11646/zootaxa.5352.2.2 journal article 272021 10.11646/zootaxa.5352.2.2 7d8204b7-a7d1-418a-8007-f44170153435 1175-5326 10130075 35D80A5A-C1E0-427C-9636-87790E1253FF Laminiceps curiosus sp. nov. ( Figs. 38 , 70 ) Type locality. French Guiana , Point de Vue du Belvedere. Description. Holotype female. Dorsal coloration. Head black; antennal segments I– III black, IV bicolorous, basal half yellow, apical half black; pronotum black with collar, anterolateral and posterolateral margins and humeral angles shiny red; pronotal disk with bluish reflections; scutellum black with irregular bluish reflections; clavus black with anterior half of outer border shiny red and posterior half black; inner and outer borders of claval commissure dark castaneous; corium black with costal margin shiny red except the posterior border black; hemelytral membrane dark brown; punctures of pronotum, scutellum, clavus and corium with bluish reflections; connexival segments III – IX shiny red; dorsal abdominal segments III –IX black. Ventral coloration. Head black with short dark castaneous orange longitudinal stripe close to inner border of eyes; buccula black with upper margin yellow; rostral segments I– IV reddish brown; pro-, meso- and metasternum shiny black; propleuron shiny black with upper margin shiny red; meso- and metapleuron shiny black; legs entirely shiny black; abdominal sterna III – VII shiny black; pleural abdominal margins III – VII shiny red; gonocoxae black; laterotergites VIII –IX shiny red. Structure. Head. Antennal segment III robust, clavate; rostrum reaching posterior third of mesosternum. Thorax. Pronotum. Trapeziform; anterolateral margins crenulate; humeral angles expanded into a medium-sized spine, directed laterally with short obtuse projections; posterolateral margins finely crenulate; posterior border straight, entire. Measurements. Female. Body length 21.80; head length 2.17; head width across eyes 3.22; interocular distance 1.24; interocellar distance 0.57; preocular distance 1.11; length antennal segments I 3.84, II 2.79, III 2.17, IV 7.62; length rostral segments I 1.73, II 1.57, III 1.36, IV 1.24; pronotum total length 4.96; maximum width across humeral angles 8.24; scutellum length 2.54, width 2.79. Male. Unknown. Type material. HOLOTYPE female: FRENCH GUIANA : Point de Vue du Belvedere de Saül , 250 m , 03°37´22´´N- 53°12´34´´W , 10–xii–2021 , S. Brüle & P. H. Dalens ( MHNP ). Etymology. From the Latin “ curiosus ” meaning inquisitive, odd, strange. Discussion. Differential diagnosis. This species resembling L. bicolor Brailovsky & Barrera ( Fig32 , 71 ) in having the antennal segments I–III black and IV bicolorous; abdominal sterna black to reddish brown; anterolateral and posterolateral margins of pronotum, and humeral angles shiny red; pronotal disk trapeziform with humeral angles expanded into a medium-sized spine directed laterally; apex of scutellum black and pronotal disk without shiny red longitudinal stripe. In L. bicolor the pro-, meso- and metapleuron are black to reddish brown with shiny red discoidal spot at each acetabulae; connexival segments III–VII and pleural abdominal segments clearly bicolorous with anterior half black and posterior half yellow; dorsal abdominal segments black and laterally dark red; and the spine of humeral angles acute. In L. curiosus sp. nov. , ( Figs. 38 , 70 ), pro-, meso- and metapleuron are entirely black to reddish brown; connexival segments III–VII and pleural abdominal margins entirely shiny red; dorsal abdominal segments entirely black; and the spine of humeral angles obtuse. In L. megaera (Burmeister) ( Figs. 33–34 , 72–73 ), each acetabulae has a red discoidal spot; apex of scutellum shiny red; pronotal disk has a completely shiny red longitudinal stripe across middle third; and humeral angles are obtuse and rounded.