Niesthrea flava Grillo and Alayo, 1978: 43 Froeschner, 1989: 611 Hidalgo-Gato González et al. 2002: 22 Niesthrea remediana Grillo and Alayo, 1978: 46 Froeschner, 1989: 611 González et al. 2002: 22 N. louisianica Göllner-Scheiding, 1989: 298 Niesthrea ashlocki Froeschner, 1989: 609 Henry and Wilson, 2004: 81 Fowles et al., 2015: 621 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 8QL2H Grillo and Alayo, 1978 Grillo and Alayo 1978 [818,1243,1385,1408] Insecta Rhopalidae Niesthrea Animalia Hemiptera 12 13 Arthropoda species flava  ( Figs. 3Hand 8G–H)      Niesthrea flava Grillo and Alayo, 1978: 43(original description);  Froeschner, 1989: 611(list, distribution);  Hidalgo-Gato González et al. 2002: 22( typespecimen data).     Niesthrea remediana Grillo and Alayo, 1978: 46(original description);  Froeschner, 1989: 611(list, distribution); Hidalgo- Gato  González et al. 2002: 22( typespecimen data). Previously synonymized with  N. louisianicaby  Göllner-Scheiding, 1989: 298. Revised synonymy.     Niesthrea ashlocki Froeschner, 1989: 609(original description);  Henry and Wilson, 2004: 81(diagnosis, distribution);  Fowles et al., 2015: 621(list, distribution); CoreoideaSF Team, 2018(online catalog). New synonymy.   Diagnosis   Niesthrea flavais distinguished by the vertical, relatively slender parameres ( Fig. 8G) with only a small denticle at the base and apex, the broadly rounded median lobe with weakly constricted smooth lateral margins, and the subequal height of the parameres and lateral lobes. The labium extending to base of abdominal segment III. The male genitalia of this species are most similar to those of  N. louisianica, especially the parameres. However, in  N. flava, the height of the parameres ( Fig. 8G) and lateral lobes is subequal, whereas in  N. louisianicathe lateral lobes ( Fig. 9E) are much higher than the parameres.  Niesthrea flavacan be further separated by the usually pale body color ( Figs. 1and 3H) with or without small red dorsal spots, the greatly reduced dark bands on the femora and tibiae, and the smaller size ( 4.86–6.30 mm), whereas  N. louisianicais distinguished by the generally much darker, often strongly tinged with red color and with red spots the more heavily banded femora and tibiae, and the larger size ( 6.72–8.16 mm).