Diplazicoris, Konstantinov & Knyshov, 2015, Konstantinov & Knyshov, 2015

Konstantinov, Fedor V. & Knyshov, Alexander A., 2015, The tribe Bryocorini (Insecta: Heteroptera: Miridae: Bryocorinae): phylogeny, description of a new genus, and adaptive radiation on ferns, Zoological Journal of the Linnean Society 175 (3), pp. 441-472 : 461-463

publication ID

http://doi.org/ 10.1111/zoj.12283

persistent identifier

http://treatment.plazi.org/id/03DBF878-FFEF-5F43-FC3E-82CBFE32FBEB

treatment provided by

Felipe

scientific name

Diplazicoris
status

GEN. NOV.

DIPLAZICORIS   GEN. NOV.

FIGS 6 View Figures 1–9 , 10, 15 View Figures 10–21 , 22, 27, 31, 32 View Figures 22–33 , 42 View Figures 34–45 , 46, 48, 52 View Figures 46–58 , 59, 60, 66, 67 View Figures 59–78 , 82, 83 View Figures 79–87 , 88, 89, 94, 95 View Figures 88–103

Type species: Diplazicoris lombokianus   sp. nov.

Diagnosis

Recognized by the following combination of characters: antennal segment I short, almost one-half the head width and distinctly shorter than vertex width; labial segment IV apically blunt, thick, and short ( Fig. 22 View Figures 22–33 ); pronotal collar flat and wide, deeply scalloped along posterior margin ( Figs 10, 15 View Figures 10–21 ); corium with distinctly convex lateral margin; cuneal fracture incised; genital capsule ( Figs 59, 60 View Figures 59–78 ) with characteristic twin-coned process above left paramere and broadly rounded, apically serrated lamella in front of right paramere; right paramere ( Fig. 66 View Figures 59–78 ) large, almost equal in length to left paramere; left paramere with long spine at base of apical process and small teeth close to midpoint; vestibulum well sclerotized, straight, symmetrical, running in caudal direction; second valvula as in Fig. 95 View Figures 88–103 , apically twisted, with peculiar row of large teeth on inner surface.

The new genus clearly differs from all other representatives of the tribe in the oval scent gland evaporative area with smoothly rounded anterior margin ( Fig. 31 View Figures 22–33 ), the large right paramere that is almost equal in length to the left paramere ( Fig. 66 View Figures 59–78 ), the shape and serration of the left paramere, the strongly sclerotized vestibulum, and the shape of the second valvula. Diplazicoris   is somewhat similar to Bryophilocapsus Yasunaga, 2000   in body proportions and coloration, but clearly differs from Bryophilocapsus   by the following features: scalloped margins of pronotal collar and scutellum; straight, not deflexed membrane; and by the other diagnostic characters mentioned above.

Description

Male

Coloration: Dorsum and venter almost uniformly pale yellowish brown to dirty pale brown; clypeus and labrum dark brown; antennal segment I with diffuse brown ring apically and usually with somewhat darkened base; segment II dark brown entirely or in apical half; remaining antennal segments pale to dark brown, somewhat paler than apex of segment II; hemelytron usually with narrowly darkened claval commissure and indistinct pale brown macula medio-apically; membrane with diffuse pale brown stripe along midline or at least with darkened area around apex of vein; pregenital segments of abdomen at least partly darkened, usually dark brown with dirty yellow areas.

Structure: Body elongate–oval, macropterous.

Head: Vertical, rather wide, nearly as wide as high, almost triangular below eyes in frontal view; vertex broad and almost flat, distinctly carinate at base; frons convex, epistomal suture distinctly depressed; clypeus prominent, oriented ventroposteriorly; mandibular plate broadly triangular; maxillary plate rectangular, twice as long as high; bucculae short, merging behind base of labium; gula reduced, one-half length of buccula; eyes relatively small, less than half height of head in lateral view, not stylate, slightly projecting beyond anterolateral margins of pronotum; antennal fossa located slightly above ventral margin of eye; first antennal segment relatively short, swollen in apical three-quarters; second segment thin; segments III and IV filiform; labium thick, reaching to middle of mesosternum, segment IV short, twice as long as broad at base, apically blunt.

Thorax: Pronotum trapeziform, with somewhat carinate anterior angles, weakly concave lateral margins, broadly rounded posterior angles, and almost straight posterior margin; pronotal collar demarcated by deep suture, flat and wide, 1.3–1.4 times as wide as antennal segment I at middle, deeply scalloped along posterior margin; calli weakly delimited, disc only slightly raised at base; metathoracic scent-gland evaporatory area comparatively small, elongate–oval, with widely rounded anterior margin; peritreme large, distinctly raised, oval; entire mesonotum and usually base of scutellum covered by posterior margin of pronotum, lateral margins of scutellum deeply scalloped.

Hemelytron: Semitransparent, corium with distinctly convex lateral margin, R + M vein distinctly depressed, slightly S-curved, almost reaching apex of corium, with a row of punctures at basal one-quarter, medial fracture distinctly elevated, straight, almost reaching apex of corium, and terminating at same level with claval suture; costal fracture distinct, deeply incised at base; cuneus relatively wide, only slightly longer than wide; membrane with single cell not surpassing apex of cuneus.

Legs: All femora comparatively short, cylindrical, hind femur not swollen; tibia straight and rather short; tarsus three-segmented, segments I and II almost equal in length, segment III 1.3 times as long as segment II, distinctly swollen apically, with long guard setae; ungitractor with large and very wide, broadly triangular, pseudopulvilli surpassing apex of claw, parempodia absent; claw falcate, strongly and gradually curved.

Surface and vestiture: Head, pronotal collar, calli, and scutellum smooth and shiny; reminder of pronotum and hemelytron shiny, with dense but indistinct, shallow punctures (as in Fig. 27 View Figures 22–33 ); thoracic pleura and abdomen shiny, smooth to weakly rugose. Dorsum and appendages with dense, relatively short, semi-adpressed pale simple setae; thoracic pleura with a few similar setae; abdomen with dense simple setae almost twice as long as those on hemelytra; tibial spines absent, tibiae with dense pale simple setae only.

Genitalia: Genital capsule: comparatively large, about half of abdomen, short and very wide, about twice as wide as long ( Fig. 60 View Figures 59–78 ), with base partly retracted into abdominal segment VIII; dorsal wall straight, ventral wall strongly sloping and extending caudally; supragenital bridge absent; opening of genital capsule wide, with large twin-coned process in front of left paramere and broadly rounded, apically serrated lamella in front of right paramere ( Fig. 59 View Figures 59–78 ); plane of phallic structures turned slightly more than 20°. Parameres: left paramere ( Fig. 67 View Figures 59–78 ) L-shaped, with swollen base; apical process large, flattened, twisted at base, with long spine and small teeth close to midpoint, apically curved and finely serrate; right paramere ( Fig. 66 View Figures 59–78 ) large, almost equal in length to left paramere, L-shaped, with blunt apical process. Aedeagus: small and simple ( Figs 82, 83 View Figures 79–87 ); phallobase with strongly reduced capitate processes; phallotheca entirely membranous, with slightly sclerotized area at base of dorsal wall adjacent to phallobase; ductus seminis almost entirely sclerotized, its proximal third with rings, strongly swollen, and sclerotized at base; distal two-thirds of ductus seminis placed at an angle to proximal third, sclerotized, deeply incised apically and reaching apex of phallotheca in repose; opening of secondary gonopore without sculpture, large and slit-like; endosoma small and simple, without sclerotizations.

Female

Coloration, surface, vestiture, and structure: As in male.

Genitalia: Dorsal labiate plate small, entirely membranous, sclerotized rings round, very small and weakly sclerotized; posterior wall with heavily sclerotized, large, and dorsally expanded sclerite bearing proximal incision along midline; sclerites encircling vulva symmetrical, large, expanding at sides ( Fig. 89 View Figures 88–103 ); vestibulum well sclerotized, straight, symmetrical, running in caudal direction; apex of first valvula ( Fig. 94 View Figures 88–103 ) gradually tapering, with outer surface clothed with dense minute teeth; second valvula as in Fig. 95 View Figures 88–103 , apically twisted, with peculiar row of large teeth on inner surface and finely dentate outer surface.

Etymology

The new genus is named for host association with ferns belonging to the genus Diplazium   ( Aspleniaceae   ). The gender is masculine.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Miridae