Revision of the New World Scentless Plant Bug Genus Niesthrea (Hemiptera: Heteroptera: Rhopalidae), with Descriptions of Six New Species and a Key to the Species Melo, María Cecilia Henry, Thomas J. Insect Systematics and Diversity 2019 2019-10-31 3 5 9 1 36 8QKY5 Melo and Henry Melo and Henry 2019 [818,1215,356,379] Insecta Rhopalidae Niesthrea Animalia Hemiptera 29 30 Arthropoda species truncata sp. nov.  ( Figs. 4H, and 11A–B)   Diagnosis This species is distinguished by the large rounded (flat on inside) parameres ( Fig. 11A) with a blunt process on the inner side of the apex, the short quadrate median lobe, and the relatively long, slender, apically rounded lateral lobe in lateral aspect. The labium extends to the base of abdominal segment III. The strongly rounded parameres ( Fig. 11A) of  N. truncataare most similar to those of  N. casinii( Fig. 7A), but can be recognized by the short, quadrate median lobe and longer, stouter, and apically rounded lateral lobe, whereas  N. casiniihas a distinctly conical median lobe and the lateral lobe is shorter, more slender, and apically pointed.   Description  Head: Yellowish brown, mark on inner margin of ocelli, median line, and cluster of punctures on frons and vertex dark brown; with dense, erect, pale setae. Labium: Extending to base of grooved abdominal segment III.  Antenna: Segment Ipale yellowish brown, with narrow, dark brown, inverted, V-shape mark dorsally and a single, narrow, dark brown line ventrally; segments IIand IIIpale yellowish brown, with a narrow indistinct brown line dorsally and ventrally on each segment, with numerous long, erect, pale setae up to two times diameter of respective segments.  Pronotum: Paleyellowish brown, holotypewithout small red spots, most paratypeswith four small red spots across calli, with numerous short, pale setae.  Scutellum: Paleyellow with a few small red spots.  Hemelytron: Clavaland corial cells clear, veins and apex of corium yellowish brown, with vague brown spots; membrane clear. Ventral surface: Pale yellowish brown, with or without a few scattered, tiny red spots, less so on thorax. Legs: Pale yellowish brown; femora with numerous, small, pale brown spots, some coalescing into larger spots; tibiae with small, pale brown spots. Male genitalia: Paramere( Fig. 11A): Broadly rounded on outer side, more flattened on inner surface, with a blunt denticle apically. Median lobe( Fig. 11A): Shorter than parameres, quadrate distally, flat dorsally, without lateral processes. Lateral lobe( Fig. 11B): Extending higher than parameres; relatively slender and apically rounded in lateral aspect. III Antenna & Segment I 29 30 1 II, III Pronotum & Pale & Hemelytron & Claval 29 30 2 holotype