Orthocephalus tibialis (Reuter)

Namyatova, Anna A. & Konstantinov, Fedor V., 2009, Revision of the genus Orthocephalus Fieber, 1858 (Hemiptera: Heteroptera: Miridae: Orthotylinae) 2316, Zootaxa 2316, pp. 1-118: 90-91

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Orthocephalus tibialis (Reuter)

comb. nov.

Orthocephalus tibialis (Reuter)   , comb. nov.

Figures 4, 5, 9, 13, 17, 19

Oraniella tibialis Reuter, 1894: 139  

Smicromerus saltans Reuter, 1901: 208   (syn by Carapezza, 1997: 69).

Oraniella saltans Carvalho, 1952: 74   .

DIAGNOSIS: Most readily recognized by the presence of scalelike setae on legs, the swollen hind femora, approximately twice as wide as the middle femora, the long labium, reaching the middle of the abdomen, the aedeagus without any armament (fig. 4), and the dorsal labiate plate with bean-shaped sclerotized rings and medial sclerites almost straight, shorter than the sclerotized rings (fig. 17). Possibly confused in appearance with O. arnoldii   , but that species differing by the broader vertex. The males of these species are similar in the structure of the aedeagus, but can be easily distinguished by the shape of the parameres (compare figs. 10 and 13). Females of O. arnoldii   also distinguished from those of O. tibialis   by the presence of sickle-shaped medial sclerites (fig. 14).

REDESCRIPTION: Male: Macropterous and brachypterous; length 2.1. COLORATION (fig. 4): Head: Dark brown, spot near inner margin of eye black, almost invisible; antennal segment I dark brown, segment II pale brown, apically darkened; labium, antennal segments III and IV pale brown. Thorax: Uniformly dark brown, including evaporatorium and coxa; tibia pale brown, apically darkened; tarsal segments I and II pale brown, segment III dark brown; membrane uniformly pale brown. Abdomen: Uniformly dark brown to black. SUR- FACE AND VESTITURE: Dorsum rugose and dull; vestiture similar to that of O. arnoldii   (as in figs. 22 A-C, E, 23 A, D). STRUCTURE AND MEASUREMENTS Body 2.5× as long as width of pronotum. Head: Relatively broad, 1.2× as wide as high, frons convex; mandibular plates long and narrow; depression along posterior margin of eye indistinct; eyes small and almost not bulging, vertex 2.4× as wide as eye; eyes in contact with anterior pronotal margin; antennal fossa located at a distance from anterior margin of eye; antennal segment II thin, almost not incrassate, cylindrical, 1.0× as long as basal width of pronotum, 1.0× as long as width of head; labium long, almost reaching genital segment. Thorax: 2.0× as wide as long and 1.0× as wide as head with posterior margin slightly concave and lateral margin not carinate, calli slightly raised; hind femora swollen, approximately twice as wide as middle femora; in brachypterous males cuneus delimited with short, shallow fracture, membrane shorter than scutellum and without veins. GENITALIA: Aedeagus without any armament (fig. 9), parameres as in fig. 13.

Female: Brachypterous; total size 2.8. COLORATION: As in male. SURFACE AND VESTITURE: As in male. STRUCTURE AND MEASUREMENTS: Body 2.9× as long as width of pronotum. Head: 1.1× as wide as high; vertex 2.7× as wide as eye, antennal segment II 1.0× as long as basal width of pronotum, 1.0× as long as width of head. Thorax: Pronotum 1.9× as wide as long and 1.0× as wide as head with posterior margin straight; cuneus not delimited, claval commissure distinctly shorter than inner margin of cuneus, posterior and lateral margins of hemelytra rounded, hemelytra reaching abdominal tergum VII. GENITALIA: Dorsal labiate plate with bean-shaped, thin-walled sclerotized rings, and narrow medial sclerites (fig. 17); posterior wall of bursa copulatrix with trapeziform sclerite uniformly sclerotized, incision on the anterior margin narrow and not reaching middle of sclerite, anterior angles of this sclerite somewhat dentate and almost fused with each other, posterior margin without sclerites (fig. 19); vulva with straight sclerites not forming a circle (as fig. 19, O. styx   ).

DISTRIBUTION: Western Mediterranean species, known from Algeria, Morocco, and Tunisia.

HOST: Unknown.

DISCUSSION: The genus Oraniella   was described by Reuter (1894) to accommodate O. tibialis   and O. tristis   . See generic discussion on the synonymy of Oraniella   with Orthocephalus   .

SPECIMENS EXAMINED: Holotype: ALGERIA: Oran: Oran, 35.69111 ° N 0.64167 ° W, 111 m, 1893, P. Mathieu, 1♂ ( AMNH _ PBI 00085497) ( BMNH). GoogleMaps  

ADDITIONAL MATERIAL: TUNISIA: Jendouba: Ain Draham , 36.7772 ° N 8.6925 ° E, 982 m, 28 May 1993 GoogleMaps   ,

A. Carapezza, 1♂ ( AMNH _ PBI 00250635), 1♀ ( AMNH _ PBI 00252584) ( ZISP)   .


American Museum of Natural History


Zoological Institute, Russian Academy of Sciences














Orthocephalus tibialis (Reuter)

Namyatova, Anna A. & Konstantinov, Fedor V. 2009

Oraniella saltans

Carvalho, J. C. M. 1952: 74

Smicromerus saltans

Carapezza, A. 1997: 69
Reuter, O. M. 1901: 208

Oraniella tibialis

Reuter, O. M. 1894: 139