Peribalus strictus strictus (Fabricius, 1803)

Belousova, E. N., 2007, Revision of the shield-bug genera Holcostethus Fieber and Peribalus Mulsant et Rey (Heteroptera, Pentatomidae) of the Palaearctic Region, Entomological Review 87 (6), pp. 701-739 : 704-708

Peribalus strictus strictus (Fabricius, 1803)

Cimex strictus Fabricius, 1803: 179 .

Cimex distinctus Fieber, 1861: 339 (junior primary homonym of Cimex distinctus Gmelin, 1790 ; syn. Puton, 1881: 57).

Peribalus distinctus var. immaculicornis Rey, 1887: 2 .

Peribalus dispar Halászfy, 1961: 497 (syn. Josifov, 1986: 90).

Peribalus strictus : Stål, 1868: 28; Jakovlev, 1902: 158; Ribes, 1992: 109.

Holcostethus strictus : Tamanini, 1981: 131.

Holcostethus strictus strictus: Josifov, 1986 : 90.

Diagnosis. Typical individuals of the nominotypical subspecies are similar to P. s. vernalis in the appearance and in the structure of the genitalia, but differ from it in the following characters: sides of pronotum concave; angles of pronotum attenuate, narrowly rounded, length of their part projecting beyond elytral base subequal to width of eye; pale spot at apex of scutellum absent or obsolete.

Description. Body sandy-brownish, with rather dense, fine, black punctation (distance between punctures exceeding puncture diameter); apex of scutellum without pale spot, or with narrow obsolete spot covered with black punctures; ventral side of body yellow, rarely with dark punctation. Abdominal segments with black punctation in anterior and posterior corners of tergites. Antenna yellowish rufous, unicolor or with darkened apical segment. Length of body 8.3– 9.3 (8.9) mm, b. lw 1.59–1.71 (1.66).

Head narrowed toward anterior margin [h. wl 1.08– 1.17 (1.12)], l. bh 3.91–4.28 (4.08); jugae narrowly rounded, with straight or slightly emarginate sides, longer than clypeus, slightly converging apically, entirely covering apex of clypeus ( Fig. 93 ). Eye medium-sized, ds 1.36–1.51 (1.43). l. ba 1.92–2.18 (2.06).

Pronotum wide [p. wl 2.32–2.62 (2.44)], with clearly emarginate lateral margin bordered with rounded pale costa curved upwards. Lateral angle attenuate and narrowly rounded, length of its part projecting beyond margins of elytra subequal to width of eye ( Fig. 93 ). Scutellum about as long as wide, s. lw 0.94–1.05 (0.99).

Structure of male and female genitalia as in Figs. 2 , 18 , 56 , 75.

Distribution. The subspecies is recorded for the entire Mediterranean basin. However, most part of this territory (Spain, Italy, countries of the Balkan Peninsula, Hungary, Romania) is inhabited by typical P. s. strictus , by representatives of P. s. vernalis , and also by individuals intermediate between the two forms. In the structure of the genitalia, P. s. strictus and P. s. vernalis do not differ from each other. Northward and eastward the individuals with characters of P. s. strictus occur less frequently, and then, rather large territory is inhabited only by typical representatives of P. s. vernalis . Therefore, the author retains the rank of subspecies for these two forms, although, as noted above, they are indistinguishable over rather large territory. In Fig. 121 , collecting sites are shown only for the specimens examined by the author.

Material examined. 1 ♀, Montpellier; 1 ♀, Andalusia; 1 ♀, Asuni, Sardinia centr., 1910 (Krausse); 1 ♀, montes Gennargentu, Sardinia, Krausse; 2 Ô, Marocco, 1900 (Vaucher); 1 Ô, 1 ♀, Algerie, 60 (C. Morawitz).

Figures

Figs. 90–93. Peribalus Mulsant et Rey, head: (90) P. hoberlandti Lodos et Önder, (91) P. strictus vernalis (Wolff), (92) P. strictus capitatus (Jak.), (93) P. strictus strictus (F.).

Figs. 1–5. Peribalus Mulsant et Rey, spermatheca: (1) P. strictus capitatus (Jak.), (2) P. strictus strictus (F.), (3) P. strictus vernalis (Wolff), (4) P. lodosi Ahmad et al., (5) P. pishinensis Ahmad.

Figs. 18–22. Peribalus Mulsant et Rey, aedeagus: (18) P. strictus strictus (F.), (19) P. strictus vernalis (Wolff), (20) P. strictus capitatus (Jak.), (21) P. lodosi Ahmad, (22) P. sinuatus Ahmad.

Figs. 50–62. Parameres: (50–53) Holcostethus Fieber [(50) H. albipes (F.), (51) H. sphacelatus (F.), (52) H. evae Ribes, (53) H. (E.) fissiceps Horv.], (54–62) Peribalus Mulsant et Rey [(54) P. strictus capitatus (Jak.), (55) P. strictus vernalis (Wolff), (56) P. strictus strictus (F.), (57) P. congenitus Putsh., (58) P. hoberlandti Lodos et Önder, (59) P. nitidus (Kir.), (60) P. inclusus (Dohrn), (61) P. manifestus Kir., (62) P. tianshanicus sp. n.].

Fig. 121. Distribution of Peribalus strictus strictus (F.)