Trichadenotecnum rachimi Endang & Thornton, 1992

Yoshizawa, Kazunori, Lienhard, Charles & Abd, Idris, 2014, Trichadenotecnum species from Peninsular Malaysia and Singapore (Insecta: Psocodea: ' Psocoptera': Psocidae), Zootaxa 3835 (4), pp. 469-500 : 494

Trichadenotecnum rachimi Endang & Thornton

( Figs 1S , 26 )

Trichadenotecnum rachimi Endang & Thonton, 1992: 363 .

Trichadenotecnum arciforme: New & Lee, 1992: 155 . [Misidentification]

[Not Trichadenotecnum arciforme Thornton, 1961: 11 ; Yoshizawa & Lienhard, 2004: 141. ( Hong Kong)]

[Not Trichadenotecnum arciforme: Thornton, 1984: 157 . ( Indonesia)]

Specimens examined. [ Singapore] 1 female, Botanic Gardens, Rain Forest, beating, 25m, 16.xii.1987, CL (MHNG); 1 female, See Soon , Rifle Range, Swamp Forest, beating, 18.xii.1987, CL ( MHNG) ; 1 female, Botanic Gardens , 20–30m, 5.xii.1988, CL ( SEHU) .

Remarks. Judging from the wing markings and female genitalia, the specimens listed above were identified as T. rachimi . This species was described originally from Lombok, Indonesia, and is here recorded from Peninsular Malaysia for the first time. The females examined here are also undoubtedly conspecific with the females recorded under the name of T. arciforme from Peninsular Malaysia by New & Lee (1992). However, the Malaysian females are clearly different from the female of T. arciforme described from Hong Kong ( Yoshizawa & Lienhard, 2004). Female T. arciforme recorded from Bali and Lombok, Indonesia ( Thornton, 1984) differs from both Malaysian and Hong Kong species recorded under the name.

The short ventral valve of gonapophyses ( Fig. 26B ) strongly suggests that these females are closely related to T. apertum and its relatives. Among the species examined here, the females of T. anomalum and T. cornutum are unknown to date. T. cornutum is significantly larger than T. rachimi and has different forewing markings ( Fig. 1Q and S ) so that its conspecificity is less likely. T. anomalum and T. rachimi are significantly different in their forewing markings ( Fig. 1R and S ), although T. anomalum is known only from a single male and its intraspecific variation cannot be evaluated.

Figures

FIGURE 1.1. Forewings of Trichadenotecnum spp.: A: T. circularoides, female; B: T. cinnamonum, male; C: ditto, female; D: T. imrum, male; E: T.pardus, female; F: T. yatai, holotype male; G: T. kojimai, holotype male; H: T. adika, male; I: T. endangae, holotype male; J: T. hammani, female; K: T. sp.My19, female; L: T. gombakense, female; M: T. malayense, male.

FIGURE 26. Female genitalia of Trichadenotecnum rachimi, ventral view. A: subgenital plate; B: gonapophyses; C: spermapore plate.