Taxonomic review of the plant bug genera Amapacylapus and Cylapus with descriptions of two new species and a key to the genera of Cylapini (Hemiptera: Heteroptera: Miridae) Author Wolski, Andrzej text Acta Entomologica Musei Nationalis Pragae 2017 Acta. Ent. Mus. Natl. Pragae 2017-12-31 57 2 399 455 http://dx.doi.org/10.1515/aemnp-2017-0084 journal article 10.1515/aemnp-2017-0084 0374-1036 5315312 03305E03-AF44-4C6D-9E2B-9A3EE979C5AF Cylapus luridus sp. nov ( Figs 43 , 59 , 85–89 ) Type material. BRAZIL : RONDÔNIA : HOLOTYPE : J, “Brazil: Rondônia, 62 km SW Ariquemes , nr Fzda [= Fazenda, farm] Rancho Grande, 4–16–XI–1997 JE Eger; Drake Collection Eger Accesion 1998” ( Fig.43 ) ( USNM ) . PARATYPES : 2 JJ, the same data as for holotype ( USNM ) . Diagnosis. Recognized by the following combinations of characters: antennal segment II in males thicker than segment I ( Fig. 43 ); pronotum black, tinged with red laterally ( Fig. 43 ); outer margin of clavus with narrow, yellowish stripe along entire length ( Fig. 43 ); endosomal sclerites: es1 straight, cylindrical, serrate at apical one fourth; es2 weakly arcuate, cylindrical, weakly broadened and serrate at apical one sixth; es3 and es4 longest, moderately broadened, sharply pointed; es3 with dextrolateral margin straight and sinistrolateral margin arcuate; es4 with dextrolateral margin arcuate, sinistrolateral margin sinuate ( Fig. 85 ); left paramere when viewed dorsally with sensory lobe strongly developed ( Fig. 86 ). Most similar to C. amazonicus , C. antennatus , C. marginicollis , and C. tucuruiensis in sharing the thick antennal segment in males ( Figs 36, 38 , 43 , 55 , 56, 57, 59, 60 , 92 ). It can, however, be distinguished by the shape of the male genitalia ( Figs 85–89 ). With C. tucuruiensis in shares outer margin of clavus with yellow stripe along entire length. It can be easily distinguished by having yellow patch on corium ( Figs 43 , 54, 55 ) and male genitalia ( Figs 85–89 , 140–144 ). Description. Male . Coloration ( Figs 43 , 59 ). Dorsum black with red and yellow areas. Head . Vertex dark brown, tinged with dirty yellow; frons, mandibular and maxillary plates, clypeus, and buccula black; frons indistinctly tinged with yellow basally; gula yellow; antennal segments I and II black; segments III and IV dark brown; segment III with relatively broad, yellow annulation basally; labium black. Thorax . Pronotum black, tinged with red laterally; collar dirty yellow; humeral angle yellow. Mesoscutum and scutellum black, narrowly yellow apically. Thoracic pleura black; posterior margin of mesepimeron yellow red along entire length; metathoracic scent gland evaporative area yellow tinged with fuscous. Hemelytron black; outer margin of clavus and inner margin of corium with yellow, narrow stripe along entire length; apical margin of corium and basal margin of cuneus yellow along entire length. Legs . Coxae black; remaining segments dark brown. Abdomen black. Structure, texture and vestiture ( Figs 43 , 59 ). Dorsum covered with relatively long, semirecumbent and erect setae. Head. antennal segment II thicker than segment I, gradually becoming narrower toward apex. Thorax . Pronotum calli moderately developed. Scutellum moderately convex. Male genitalia ( Figs 85–89 ). Aedeagus ( Fig. 85 ). Endosoma with four sclerites (es1–es4): es1 straight, cylindrical, serrate at apical one fourth; es2 weakly arcuate, cylindrical, weakly broadened and serrate at apical one sixth; es3 and es4 longest, moderately broadened, sharply pointed; es3 with dextrolateral margin straight and sinistrolateral margin arcuate; es4 with dextrolateral margin arcuate, sinistrolateral margin sinuate. Left paramere ( Figs 86–88 ). Apical process weakly arcuate and tapering toward apex; paramere body arcuate in lateral view, with strongly developed sensory lobe. Right paramere ( Fig. 89 ). Apical process short, obtuse, both margins of paramere body sinuate. Female. Unknown. Measurements (in mm). J (*: holotype measurements): Body . Length: 6.60*–6.70, width 1.80–2.00*. Head . Length: 0.57–0.62*, width: 1.30*, interocular distance: 0.58*. Antenna . Length of segment I: 1.10*–1.30, II: 2.38–2.75*, III: 3.00 (in holotype missing), IV: 1.50 (in holotype missing). Labium. Length of segment I: 0.88*, II: 0.88–0.90*, III: 1.10*, IV: 0.32*–0.35. Pronotum . Length: 1.00–1.10*, width of anterior margin: 1.10–1.20*, length of lateral margin: 1.00–1.10*, width of posterior margin: 1.90*. Etymology. The species name is the Latin adjective luridus (- a , - um ) meaning pale yellow and is used to denote the clavus with thin, yellow stripe along outer margin. Biology. Unknown. Distribution. Brazil ( Rondônia ) (this paper).