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Abelocephala yaeyamensis

Abelocephala yaeyamensis

Japan
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Status
Not Evaluated

IUCN conservation assessment category

Habitat
Various biomes

Primary ecological niche & biome

Diet
Omnivorous

Dietary type and primary food source

Activity
Diurnal

Diurnal, nocturnal, or active patterns

Scientific Summary

GBIF Taxonomic Backbone & Wikipedia Registry Profile

Description. Male (macropterous). Body (Fig. 47) mostly brownish. Antennae, rostrum, and legs brownish yellow. Antennal flagella pale yellow. Posterior pronotal lobe pale brownish yellow except for median longitudinal sulcus and posterior marginal area brown. Hemelytra dark brown, with corial veins yellowish brown. Abdomen yellowish brown to brown. Head (Figs. 47, 59, 60, 73) approximately 1.4 times longer than width across eyes, 0.9 times as long as pronotum, roundly protuberant immediately behind eyes in dorsal view; anteoculus 1.2 times longer than postoculus; mandibular plate (Fig. 60) acutely angled at anterior corner and strongly projected anteriorly in dorsal view. Eye (Figs. 59, 73) approximately half as wide as interocular space in dorsal view. Antennal segment I slender, approximately 9 times longer than its maximum width, as long as segment II (Figs. 99, 100); flagellum 0.85 times as long as segment I (Fig. 101). Rostral segment I slender, approximately twice as long as segment II (Fig. 73). Pronotum (Fig. 47) approximately 0.8 times as long as humeral width; anterior lobe 0.55 times as long as posterior lobe along midline, 0.75 times as wide as humeral width. Hemelytron (Figs. 47, 117) wide, 2.2 times longer than its maximum width, exceeding apex of abdomen by approximately 0.3 times of its length; outer (larger) cell of membrane (Fig. 117) acutely angled apically. Pygophore (Fig. 123) elliptical in lateral view; posterior process (Fig. 129) narrow, with rounded apical margin in dorsal view. Parameres (Fig. 135) strongly curved in apical two-thirds, with rounded, inwardly projected apex in dorsal view. Struts of phallus (Fig. 141) tapering apicad, weakly constricted at apical one-third, rounded at apex, and with lateral walls thickened in basal half in dorsal view. Female (micropterous). At first glance, quite different from male due to micropterous condition (Fig. 48). Head (Figs. 48, 68, 79) approximately 1.5 times longer than width across eyes, 1.2 times longer than pronotum. Eye (Figs. 68, 79) small, approximately 0.25 times as wide as interocular space in dorsal view. Antennal segment I much stouter than that of male, approximately 5 times longer than its maximum width, as long as segment II (Figs. 102, 103); flagellum 1.1 times longer than segment I (Fig. 104). Pronotum (Fig. 48) approximately 0.9 times as long as humeral width; anterior lobe 1.3 times longer than posterior lobe along midline, 1.05 times wider than humeral width. Hemelytra (Fig. 48) small, pad-like, reaching to middle of abdominal tergite III; venation inconspicuous. Abdominal tergite IX (Fig. 147) with lateral projection at each basal angle; lateral projection short, narrowed in apical part, obtuse at apex. Valvifer I (Fig. 152) oblong; valvula I (Fig. 152) with 4 setae. Measurements [in mm, ♂ (n = 33) / ♀ (n = 2), holotype in parentheses]. Body length 3.88 – 4.58 / 4.67 – 5.18 (4.40). Head length 0.84 – 0.95 / 1.08 – 1.19 (0.95), width across eyes 0.68 – 0.74 / 0.72 – 0.81 (0.73). Lengths of antennal segments I and II 1.03 – 1.18 / 0.82 – 0.85 (1.18) and 1.02 – 1.14 / 0.80 – 0.83 (1.14). Lengths of rostral segments I and II 0.73 – 0.78 / 0.85 – 0.91 (0.78) and 0.36 – 0.37 / 0.42 – 0.43 (0.37). Pronotum length 0.92 – 1.05 / 1.01 – 1.04 (1.05), width across humeri 1.21 – 1.37 / 1.03 – 1.09 (1.37). Hemelytron length 3.58 – 3.95 / 0.96 – 1.05 (3.90). Lengths of femur and tibia of fore leg 1.09 – 1.27 / 1.22 – 1.28 (1.27) and 1.19 – 1.35 / 1.26 – 1.31 (1.35); of mid leg 1.12 – 1.26 / 1.22 – 1.27 (1.26) and 1.15 – 1.37 / 1.30 – 1.32 (1.37); of hind leg 1.50 – 1.72 / 1.70 – 1.72 (1.72) and 1.62 – 1.94 / 1.68 – 1.72 (1.94). Abdomen length 2.05 – 2.40 / 2.70 – 2.92 (2.39), maximum width 1.73 – 1.94 / 2.48 – 2.55 (1.93).
Biology & Conservation

Scientific field studies are ongoing to establish comprehensive biological records for this species, including precise wild population estimates, dietary distributions, typical lifespans, and specific daily activity patterns. Taxonomic details have been successfully categorized under the Global Biodiversity Information Facility (GBIF) backbone index, and deeper environmental analysis is active to catalog its behavior and conservation profile within its native biomes.

Energy & Activity Profile
Habitat & Adaptation Index
Quick Facts
Native RangeJapan
Habitat RangeGlobal
Lifespan
StatusData Deficient
ScientificAbelocephala yaeyamensis
Registry Info
LifespanUnknown
KingdomAnimalia
FamilyReduviidae