Tecmerium malikuli ( Adamski, 2002 )

Teng, Kaijian & Wang, Shuxia, 2018, Genus Tecmerium Walsingham (Lepidoptera: Blastobasidae) new to China, with descriptions of two new species, Zoological Systematics 43 (4), pp. 420-428 : 427

Tecmerium malikuli ( Adamski, 2002) ( Figs 4 , 8 , 12 )

Calosima malikuli Adamski, 2002: 234 . Type locality: Thailand.

Tecmerium malikuli (Adamski) : Sinev, 2014: 80.

Diagnosis. Adult ( Fig. 4 ) forewing length 4.5–5.5 mm (n = 18). Tecmerium malikuli is similar to T. yunnanense sp. nov. and T. scythrella ( Sinev, 1986) in the phallus with the sclerite bifurcate apically ( Figs 5b, 6b , 8b ). It can be separated from the latter two species by the juxta narrowly notched at middle on the anterior margin, the relatively longer phallus approximately two times the length of the valva ( Fig. 8 ), and the eighth sternum triangularly produced posteriorly ( Fig. 12 ). In T. yunnanense sp. nov. and T. scythrella , the juxta is broadly concave in triangle on the anterior margin, the phallus is approximately 1.5 times the length of the valva, and the eighth sternum is almost straight on the posterior margin.

Material examined. 5♂, Yexianggu (elev. 762m), Xishuangbanna, Yunnan, China, 18‒20 June 2014, coll. Kaijian Teng, Wei Guan, Xiuchun Wang and Shurong Liu ; 13♂, same locality, 8‒13 June 2015, coll. Kaijian Teng and Xia Bai.

Distribution. China (Yunnan), Thailand.

Figures

Figures 1–4. Male adults of Tecmerium spp. 1. T. yunnanense sp. nov., holotype. 2. T. scythrella. 3. T. rectimarginatum sp. nov., holotype. 4. T. malikuli. Scale bars=2.0mm.

Figures 7–8. Male genitalia of Tecmerium spp. 7. T. rectimarginatum sp. nov., paratype, slide No. TKJ17325 (a. Enlarged and unrolled vinculum, slide No. TKJ17012; b. enlarged apex of phallus, slide No. TKJ17325). 8. T. malikuli, slide No. TKJ17298 (a. Enlarged and unrolled vinculum, slide No. TKJ17401; b. enlarged apex of phallus, slide No. TKJ17298). Scale bars=0.2mm.

Figures 9–13. Male eighth sternum and female genitalia of Tecmerium spp. 9. T. yunnanense sp. nov., paratype, slide No. TKJ17316. 10. T. scythrella, slide No. TKJ17247. 11. T. rectimarginatum sp. nov., paratype, slide No. TKJ16352. 12. T. malikuli, slide No. TKJ17400. 13. T. yunnanense sp. nov., paratype, slide No. TKJ17348 (a. enlarged signum). Scale bars: 9–12, 13a = 0.2 mm; 13 = 0.5mm.

Figures 5–6. Male genitalia of Tecmerium spp. 5. T. yunnanense sp. nov., paratype, slide No. TKJ17317 (a. Enlarged and unrolled vinculum, slide No. TKJ17342; b. enlarged apex of phallus, slide No. TKJ17317). 6. T. scythrella, slide No. TKJ17109 (a. Enlarged and unrolled vinculum, slide No. TKJ17218; b. enlarged apex of phallus, slide No. TKJ17218). Scale bars=0.2mm.