Dioclerus lutheri ( Poppius, 1912 )

Yeshwanth, H. M. & Konstantinov, Fedor V., 2021, Review of the plant bug tribe Eccritotarsini (Hemiptera: Heteroptera: Miridae) of India and Sri Lanka with description of two new genera and six new species, European Journal of Taxonomy 745, pp. 1-69 : 5-6

Dioclerus lutheri ( Poppius, 1912)

Figs 1C , 5D–E , 11A–E

Serrofurius lutheri Poppius, 1912: 25 .

Dioclerus lutheri – Carvalho 1957: 97. — Stonedahl 1988: 12, figs 4, 6.

Diagnosis

Recognized by the short antennal segments, with segment I 0.7× as long as head width, segment II roughly equal to basal width of pronotum, and by the dark pattern of dorsum, particularly dark brown pronotum, scutellum, and clavus, dirty yellow corium, narrowly darkened along claval suture and with large, dark brown, rectangular spot medioapically ( Figs 1C , 5D ).

Material examined

Holotype

SRI LANKA • ♂; Ceylon , Anuradhapura; 8.326° N, 80.397° E; 19–21 Dec. 1910; A Luther leg; AMNH_ PBI 00338430 ; FMNH.

Other material

INDIA • 1 ♂; Tamil Nadu, Thandigudi; 10°18 N, 77°38 E; 1131 m a.s.l.; 19 May. 2010; E.D. Nayana leg.; at light; UASB .

Distribution

Southern India (new country record) and Sri Lanka.

Remarks

Males are currently unknown for three out of seven species of Dioclerus , including two species from the area under study. However, D. lutheri clearly differs from congeners with known male genitalia structure, viz. D. thailandensis Stonedahl, 1988 , D. malayensis Stonedahl, 1988 ( Fig. 11F–I ) and D. himalayanus Yasunaga & Ishikawa, 2016 in having long, somewhat flattened and gradually tapering apical process of the right paramere and the endosoma heavily dentate along entire length ( Fig. 11A–E ).

Figures

Fig. 1. Habitus of Dioclerus spp. A–B. Dioclerus bengalicus Stonedahl, 1988, ♀, UASB. A. Dorsal view. B. Abdomen in ventral view. C. Dioclerus lutheri Stonedahl, 1988, ♂, UASB, dorsal view. D–F. Dioclerus malayensis Stonedahl, 1988, ♀, paratype, AMNH_PBI 00340383, NHM. D. Dorsal view. E. Head and pronotum. F. Lateral view.

Fig. 5. Dorsal view and label data of type specimens. A–C. Dioclerus bengalicus Stonedahl, 1988, ♀, holotype, BPBM.D–E. Dioclerus lutheri Stonedahl, 1988, ♂, holotype, AMNH_PBI 00338430, FMNH. F–G. Dioclerus praefectus Distant,1910, lectotype, AMNH_PBI 00340384, NHM. H–I. Ernestinus mimicus Distant,1911, ♂, syntype, AMNH_PBI 00085668, BMNH(E) 1633157, NHM. J–K. Harpedona marginata Distant, 1904, ♂, holotype, NHM. L–M. Harpedona sanguinipes Distant, 1909, ♂, lectotype, NHM.

Fig. 11. Male genitalia of Dioclerus spp. A–E. Dioclerus lutheri Stonedahl, 1988, UASB. A–B. Right paramere in dorsal and lateral views C. Left paramere in dorsal view. D. Aedeagus of specimen from Tamil Nadu in lateral view. E. Aedeagus of the holotype in lateral view. F–I. Dioclerus malayensis, Stonedahl, 1988, holotype, AMNH_PBI 00340385, NHM. F. Right paramere in dorsal view. G. Left paramere in lateral view. H. Genital capsule in dorsal view. I. Aedeagus with basal part of phallotheca detached from the phalobase and expanded endosomal sac.