Trigonotylus

• Main Author: Schwartz, Michael D.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Hemiptera; Miridae; Trigonotylus; Yukon; Northwest Territories; Stripe; Alaska
• Online Access: https://zenodo.org/record/6178593; https://doi.org/10.5281/zenodo.6178593

Key to species of Trigonotylus from British Columbia, Yukon, adjacent Northwest Territories and Alaska, and the northwestern United States 1. Hind tibia strongly pilose. longipes Slater and Wagner - Hind tibia not strongly pilose. 2 2. Antennal segment I thickened (Fig. 1 B). antennatus Kelton - Antennal segment I slender (Figs. 1 A, C–G). 3 3. Antennal segment I dark, often completely dark brown to black; if segment I dark with pale mediodorsal stripe practically spanning full length of segment, than setae fine (Figs. 1 E–F). 4 - Antennal segment I pale, usually pale yellowish green or greenish brown to darker orange brown, often with indistinct reddish brown to brown stripes on apical region that reach beyond the midpoint of the segment; sometimes with three distinct red to reddish brown longitudinal stripes; if segment I slightly darkened with pale mediodorsal stripe practically spanning full length of segment, than setae stiff (Figs. 1 A, C, E, G). 6 4. Antennal segment I less than length of pronotum; segment II short (1.33–1.57 in males and 1.47–1.83 in females); endosomal spicule short and straight (Fig. 2). brooksi Kelton - Antennal segment I equal to or longer than length of pronotum; segment II long (2.10–2.50 in males and 2.23–2.65 in females); endosomal spicule either long and straight or long and gently twisted (Figs. 1 J–K, 2). 5 5. Antennal segment I with fine moderate length brown, suberect setae (Fig. 1 D); endosomal spicule straight (Figs. 1 J, 2). exilis sp. n. - Antennal segment I with coarse or stout moderate length black suberect setae; (Fig. 1 F) endosomal spicule gently twisted (Figs. 1 K, 2). setosus sp. n. 6. Endosoma without spicule and with field of spines basal to secondary gonopore; antennal segment I with three red to reddish brown longitudinal stripes (Fig. 1 C); labium longer than 1.7 mm [does not apply in Yukon Territory]; apex of clypeus rather pointed in dorsal view. caelestialium (Kirkaldy) - Endosoma with spicule and either with or without field of spines basal to secondary ...