Phylocentropus tohoku, Arefina-Armitage & Armitage, 2011

Arefina-Armitage, I. T. & Armitage, B. J., 2011, Three new species of Phylocentropus Banks (Trichoptera: Dipseudopsidae) from Vietnam, Insecta Mundi 2011 (193), pp. 1-6 : 1-6

Phylocentropus tohoku sp. n.

(Figures 1-4)

Diagnosis. The male of Phylocentropus tohoku most closely resembles Ph. narumonae in the shape of the preanal appendage and the inferior appendage in lateral view. It is distinguished by the shape of segment Xin dorsal view, having a roundly bilobed dorsal portion and a slender, acuminate ventral portion, which extends beyond the dorsal portion.

Adult. Length of male forewing 6.8 mm. Color of body and wings light brown. Forewings with venation complete; hind wings with forks I, II, III, and V.

Male genitalia. Sternite IX 2 times as long as wide; in lateral view, anterior portion triangular with acute apex; posterior margin broadly rounded. Segment X long, nearly rectangular in lateral view, with distal marginhaving shallow concavity; in dorsalview, broadlyrounded and bilobed, with ventralprocesses slender, acuminate, extending slightly beyonddorsal portion. Preanal appendage large, dorsal and ventral margins parallel, apexbroadly rounded. Intermediate appendage large, banana-like in lateralview. Inferior appendage mitten-like in lateral view; inner surface of dorsal lobe bearing elongate projection directed posterad in lateral view, same projection with complex shape in ventral view. Phallotheca and endotheca almost equal in length; endotheca armed with long, unpaired spiniform process.

Female and immature stages. Unknown.

Holotype male. Vietnam, Ha Tinh, Huong Son , 200 m, 18 o 21’N, 105 o 15’E, Malaise trap, 15 May 1998, J. Carpenter, K. Long, D. Grimaldi, L. Herman, D. Silva.

Distribution. Known only from the type locality in Ha Tinh Province ( Vietnam).

Etymology. This species is named to honor and remember the many lives lost in the Tohoku District of the Japanese island of Honshu during the March, 2011 earthquake and tsunami. The word “Tohoku” refers to the northeast (to = east; hoku = north) district of Honshu. The Japanese meteorological agency refers to this event as the Tohoku Earthquake.