Fingulus rubricatus Yasunaga & Yamada

Yasunaga, Tomohide, Yamada, Kazutaka, Duangthisan, Jomsurang & Artchawakom, Taksin, 2016, Review of the plant bug genus Fingulus Distant in Indochina (Hemiptera: Heteroptera: Miridae: Deraeocorini), with descriptions of two new species, Zootaxa 4154 (5), pp. 581-588 : 586-588

Fingulus rubricatus Yasunaga & Yamada , n. sp.

( Figs. 2 A–B, 3D, 4C)

Diagnosis. Recognized readily by its carmine red general coloration. Most closely related to F. atrocaeruleus Distant known from Australia, based on similarity in the shape of the left paramere; easily distinguished by its larger size, carmine red general coloration, punctate pronotal collar, and longer antennal segment II greater than basal width of pronotum.

Description. Holotype Male: Body generally carmine red, comparatively large in size; dorsal surface shining, with densely distributed, fuscous punctures. Head shining, impunctate, longer than width across eyes; vertex narrowly darkened on basal carina; tylus moderately produced, slightly deflexed medially; neck inflated posteriorly to eyes. Antenna uniformly pale brown, except for wholly shiny carmine segment I that is about as long as an eye in dorsal view. Labium pale brown, reaching between mesocoxae; apex of segment IV dark brown. Pronotum including collar punctate; calli shiny, smooth, slightly infuscate mesially; mesoscutum fuscous, matte; anterior margin of scutellum narrowly darkened, slightly elevated above surface of hemelytron; pleura almost entirely fuscous, with dusty reddish white ostiolar peritreme; propleuron and epimeron punctate; episternum ventrally dark red, transversely wrinkled. Hemelytron weakly rounded laterally, not much slanted at cuneal fracture, with uniformly distributed punctures except on smooth cuneus; clavus narrowly infuscate along claval commissure; anterior inner corner of cuneus fuscous; membrane pale grayish brown, semitransparent, roundly suffused with fuscous along posterior margin of dark veins. Coxae and legs red; procoxa, all trochanters and bases of all femora creamy white; more than half apical part of each tibia and all tarsi whitish brown. Abdomen shiny fuscous. Male genitalia: Left paramere with sensory lobe rounded; hypophysis rather short, flattened and weakly curved, with bifurcate apex ( Fig. 4 C). Structure of endosoma could not be confirmed well, as the single available specimen seems not to have been sexually matured. Female: Unknown.

Measurements. ♂: Total body length 3.92; length of head 0.68; width of head across eyes 0.62; width of vertex 0.11; lengths of antennal segments I −IV 0.47, 1.64, 0.87, 0.70; length of labium 1.43; mesal length of pronotum including collar 1.05; basal width of pronotum 1.24; maximum width across hemelytron 1.35; and length of metafemur, tibia and tarsus 1.26, 1.84, 0.31.

Etymology. From Latin, rubricatus (= red colored), referring to the bright red coloration of this new species. Biology. Unknown; only a single male was collected at UV light trap.

Holotype: ♂, THAILAND: Nakhon Ratchasima, Wang Nam Khieo, Sakaerat Environmental Research Station ( SERS), UV light trap, 9 Dec 2015, T. Yasunaga, D. Jomsurang ( AMNH _PBI 00380430) ( DOAT).

Figures

FIGURE 2. Habitus images of Fingulus spp. (A − D) and Angerianus spp. (E − F) A − B. Fingulus rubricatus, holotype male. C. F. collaris Miyamoto, female adult from Ishigaki Island, Ryukyus, Japan. D. Same, final instar nymph from Iriomote Island, Ryukyus. E. Angerianus fractus Distant, male from SERS. F. A. maurus Distant, female from SERS. Images C & D courtesy of Mr. M. Takai.

FIGURE 4. Male genitalia of Fingulus angkorensis (A − B) and F. rubricatus (C), named on the figures.