Fingulus henrytomi, Nakatani, Yukinobu & Yasunaga, Tomohide, 2018

Nakatani, Yukinobu & Yasunaga, Tomohide, 2018, Two new deraeocorine plant bug species from Japan (Heteroptera, Miridae, Deraeocorinae), ZooKeys 796, pp. 163-174 : 163

Fingulus henrytomi sp. n. Figs 4, 8-9, 19-22

Type material.

Holotype: ♀, Japan: Shikoku, Kochi, Monobe, Nishikuma-keikoku, 5.VIII.2000, M. Takai (AMNH_PBI 00380591) (NIAES). Paratype: 1♀, Nagasaki, Tsushima Island, Mt. Tatera, 34°09'00"N, 129°13'30"E, 25 Sep 1993, T. Yasunaga (AMNH_PBI 00380592) (TYCN)

Diagnosis.

Dorsum dark brown with a pair of pale markings on hemelytra; head slightly pale; pronotum trapeziform, strongly convex; femora and bases of tibiae infuscate. In general appearance, this new species resembles F. collaris Miyamoto, from which it can be distinguished by its hemelytral coloration.

Description.

Female: Body dark chestnut brown with a pair of paler markings on hemelytra, highly polished and punctate. Head slightly paler than remainder of body, suddenly restricted anterior to compound eye; tip of tylus infuscate; jugum, lorum, and gena paler than frons; vertex somewhat depressed; postocular part elongate, neck-like; buccula tinged with red. Antennal segment I dark chestnut brown, apparently thicker than other segments; segments II–IV pale yellowish brown. Labium castaneous; apical 1/3 of segment III pale brown. Pronotum entirely dark chestnut brown, highly polished and punctate, trapeziform and strongly convex; posterior margin rounded; collar flattened and weakly punctate; prosternum somewhat pale, conically projecting; ostiolar peritreme whitish yellow. Hemelytra widely dark chestnut brown except marking on basal 1/3 of corium brown. Membrane infuscate adjacent to red-tinged vein. Femora dark reddish brown; tibiae pale yellow except base infuscate; tarsi pale yellow. Abdomen dark chestnut brown.

Measurements.

(♀). Total body length: 3.64-4.17; width head across eyes: 0.50-0.59; width vertex: 0.15; length labium: 1.23-1.38; length of antennal segments I–IV: 0.41-0.43, 1.07-1.11, 0.83-0.86, 0.49-0.50; length pronotum including collar: 1.10-1.18; width base of pronotum: 1.41-1.48; maximum width across hemelytra: 1.65-1.70; length of hind femur, tibia, and tarsus: 1.20-1.48, 1.47-1.55, 0.30-0.32.

Etymology.

Named in honor of Dr. Thomas J. (Tom) Henry, our honorable friend and mentor.

Distribution.

Japan (Shikoku: Kochi Pref., Tsushima Island).

Biology.

The habits of this new species remain unknown; the only information is that the type specimens were collected by using a UV light trap or sweeping broadleaf trees.

Remarks.

This new species can be distinguished from its congeners by the coloration described above. Based on the generally ovoid body and rather weakly porrect head, our new species is assumed to be most closely related to F. collaris . As in certain other congeners, the population density of F. henrytomi is extremely low, as only two females have been collected, in spite of our continuing efforts and those of our enthusiastic colleagues to find additional specimens.