Ecacanthothrips claricornis Okajima

Okajima, Shûji & Masumoto, Masami, 2024, The genus Hoplandrothrips and its relatives (Thysanoptera: Phlaeothripidae) from Southeast Asia and Taiwan, Zootaxa 5489 (1), pp. 22-91 : 28-29

Ecacanthothrips claricornis Okajima

( Figs 5–6 , 75–83 )

Ecacanthothrips claricornis Okajima, 1983: 57–59 .

E. claricornis was described based on 17 females and six males collected from Mindanao Is., the Philippines, together with non-paratypic three females and five males from Luzon Is., and is included in the tibialis -group. It is newly recorded here from Central and South Sulawesi, Indonesia, based on a long series of females and males listed below. This species also shows remarkable size related structural variations associated with allometric growth as in tibialis . Although the specimens from Mindanao, the type series, have the femora fully brown, the specimens from both Luzon and Sulawesi have the femora largely brown but with apices clear yellow. Moreover, the size related variation of claricornis is more similar to andrei rather than tibialis , and the prothoracic anteromarginal setae elongate, the fore tibia with no sub-apical inner tubercle even in large males, and claricornis has only one stout seta with blunt or dilated apex on each mid and hind femur in both sexes ( Fig. 82 ). In contrast to andrei , this species has somewhat enlarged antennal segment III ( Figs 78 & 79 ), that is distinctly wider than segment IV, with usually 10–15 sense cones.

Specimens examined. The Philippines, holotype female and paratype females and males from Mindanao Is .; 3 females and 5 males, from Luzon Is. (data described in Okajima, 1983) . Indonesia, South Celebes (= Sulawesi), Malino , alt. about 900m, 4 females and 5 males, on dead leaves and branches, 31.vii.1984, 2 females and 3 males, on dead Palmae, 3.viii.1984, SO; Central Celebes, near Rantepao, Pedamaran , alt. about 1000m, 62 females and 45 males, on dead leaves and branches, 8–14.viii.1984, SO .

Figures

FIGURES 1–14. Ecacanthothrips species. E. andrei 1–2: (1) female; (2) large male. E. brevicornis sp. n. 3–4: (3) female; (4) male. E. claricornis 5–6: (5) female; (6) large male. E. coniger 7–8: (7) female; (8) large male. E. leai 9–11: (9) female; (10) large male; (11) small male. E. moundi 12–13: (12) fmale; (13) large male. E. nigellus: (14) female.

FIGURES 75–83. Ecacanthothrips claricornis. (75) fore leg, female; (76) head and prothorax, female; (77) head and prothorax, large male; (78) antenna, female; (79) antennal segments III–V, female; (80) metanotum and pelta, female; (81) prosternum and mesopresternum, female; (82) hind femur, female; (83) tube, female.