Tribelocephalinae
Creators: name: Ishikawa, Tadashi
name: Cai, Wanzhi
name: Tomokuni, Masaaki
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Reduviidae

description: Key to genera and species of Japanese Tribelocephalinae
1 Interocular space narrower than eye in dorsal view; posterior pronotal lobe not sulcate along meson (Opistoplatys)........ 2
- Interocular space wider than eye in dorsal view; posterior pronotal lobe sulcate along meson (Abelocephala)............. 3
2 Body approximately 6.7 mm long; antennal flagellum longer than antennal segment II; posterior pronotal lobe without yellow- ish longitudinal stripe or spot along meson................................................. Opistoplatys minimus
- Body approximately 7.6 mm long; antennal flagellum shorter than antennal segment II; posterior pronotal lobe with yellowish longitudinal stripe or spot along meson................................................ Opistoplatys flavolineatus
3 Head twice as long as width across eyes.................................................. Abelocephala longiceps
- Head 1.5 times or less as long as width across eyes........................................................... 4
4 Body length more than 3.8 mm; rostral segment I twice or more as long as segment II............................... 5
- Body length less than 3.6 mm; rostral segment I 1.7 times or less as long as segment II.............................. 6
5 Mandibular plates acutely angled at anterior corner and strongly projected anteriorly in dorsal view; outer (larger) cell of hem- elytral membrane acutely angled apically; posterior process of pygophore narrow in dorsal view.. Abelocephala yaeyamensis
- Mandibular plates nearly right-angled at anterior corner and weakly projected anteriorly in dorsal view; outer (larger) cell of hemelytral membrane rounded apically; posterior process of pygophore wide in dorsal view........... Abelocephala major
6 Mandibular plates acutely angled at anterior corner and strongly projected anteriorly in dorsal view; outer (larger) cell of hem- elytral membrane rounded apically; posterior process of pygophore narrow in dorsal view; lateral projections of female abdominal tergite IX long and gently constricted at middle.................................... Abelocephala nakatai
- Mandibular plates nearly right-angled at anterior corner and weakly projected anteriorly in dorsal view; outer (larger) cell of hemelytral membrane acutely angled apically; posterior process of pygophore wide in dorsal view; lateral projections of
female abdominal tergite IX short and not constricted at middle................................................. 7 7 Head approximately 1.4 times in male and 1.5 times in female longer than width across eyes; corial cell more or less fuscous in macropterous form; posterior process of pygophore with straight apical margin in dorsal view; valvula I with 4 setae............................................................................................ Abelocephala albula
- Head approximately 1.6 times in male and 1.7 times in female longer than width across eyes; corial cell evenly pale in macropterous form; posterior process of pygophore with weakly curved apical margin in dorsal view; valvula I with 2 setae.................................................................................... Abelocephala araiorum
description: Published as part of Ishikawa, Tadashi, Cai, Wanzhi & Tomokuni, Masaaki, 2015, The assassin bug subfamily Tribelocephalinae (Hemiptera: Heteroptera: Reduviidae) from Japan, with descriptions of eight new species in the genera Opistoplatys and Abelocephala, pp. 151-180 in Zootaxa 3936 (2) on pages 178-179, DOI: 10.11646/zootaxa.3936.2.1, http://zenodo.org/record/241991