Campylomma annulicorne ( Signoret, 1865 )

Konstantinov, Fedor V., Neimorovets, Vladimir V. & Korzeev, Andrei I., 2015, The genus Campylomma Reuter, 1878 (Hemiptera: Heteroptera: Miridae: Phylinae): two new synonyms and discussion of the diagnosis, Zootaxa 3974 (2), pp. 203-216 : 206-208

Campylomma annulicorne ( Signoret, 1865)

Figures 1–7 , 12, 13, 15–17 ,

Lithocoris? annulicornis Signoret, 1865: 126

Campylomma annulicornis Reuter, 1881: 184

Agalliastes lucidus Jakovlev, 1876: 228 (syn. by Reuter, 1881: 194) Campylomma viridula Jakovlev, 1880: 143 (syn. by Reuter, 1879: 296) Campylomma celata Wagner, 1969: 15 (new synonymy)

Type material examined. Holotype of Campylomma celatum : ♂, LIBYA: Cirenaica: Oasis Giarabub, 24 Apr 1965, Eckerlein, ( AMNH _PBI 00183987). Paratypes of Campylomma celatum : same label data as the holotype, 1♂ ( AMNH _PBI 00340687), 4♀ ( AMNH _PBI 00340683– AMNH _PBI 00340686) ( ZMUH).

Lectotype of Campylomma viridula : 1♀, RUSSIAN FEDERATION: Astrakhan Prov.: Astrakhan, 46.36666 ° N 48.08333 ° E, V. Jakovlev coll. ( AMNH _PBI 00226567) ( ZISP). Paralectotypes of Campylomma viridula : RUSSIAN FEDERATION: Astrakhan Prov.: Astrakhan, 46.36666 ° N 48.08333 ° E, V. Jakovlev coll., 14♂ ( AMNH _PBI 00226573– AMNH _PBI 00226576), 2♀ ( AMNH _PBI 0 0 226573, AMNH _PBI 00226572) ( ZISP).

Additional material examined. AZERBAIJAN: Kurgulu-caj, 41 ° N 46.75 ° E, Balasoglo, 1♂ ( AMNH _PBI 00226579) ( ZISP). CHINA: Harbin, 45.71666 ° N 126.6 ° E, 19 Jun 1911, Emeljanov, 1♀ ( AMNH _PBI 00226570) ( ZISP). KAZAKHSTAN: Almaty Prov.: Lower course of Ili River, 45.08333 ° N 74.08333 ° E, 0 7 Sep 1903, Berg, 1♂ ( AMNH _PBI 00226577), 1♀ ( AMNH _PBI 00226569) ( ZISP). RUSSIAN FEDERATION: Primorsky Terr.: Andreevka, Troitsa Bay, 42.63333 ° N 131.11666 ° E, 28 Jul 1985, Sinev, 1♀ ( AMNH _PBI 00226571) ( ZISP); 0 6 Aug 1985, Sinev, 1♀ ( AMNH _PBI 00226578) ( ZISP).

Diagnosis. Recognized by the sexually dimorphic coloration of antennal segment II: entirely dark brown in male, pale yellow with darkened base in female ( Figs. 5, 6 ); and the shape of relatively long and thin apical blades of the vesica ( Figs. 12, 13, 15–17 ), with anterior blade characteristically bent at midpoint (shown with arrow on Fig. 17 ). Most similar in the coloration of antennae in both sexes, structure of vesica, and body proportions to Campylomma simillimum Jakovlev, 1882 but the latter species differs in having a short posterior blade, only slightly longer than anterior one ( Fig. 21 ). Vesica of C. annulicorne is most similar to that of C. diversicorne Reuter, 1878 ( Figs. 18–20 ) but the latter species can be distinguished by the wider and very slightly curved, roughly triangular anterior blade (shown with arrow on Fig. 18 ), antennal segments I and II entirely dark brown in both sexes ( Figs. 8, 9 ) and smaller sizes with relatively narrow head width and interocular distance (see Table 1 ).

Discussion. Campylomma annulicorne is a widespread Trans-Palearctic, willow inhabiting species, ranging from Great Britain, France and Spain in the west, eastward to Northern China, Korea, Russian Far East and northern Japan ( Kerzhner & Josifov 1999; Yasunaga et al. 2015, in press), and southward to Corsica ( Pericart 1965), southern Italy ( Reuter 1879), Greece ( Rieger 2007), Turkey ( Hoberlandt 1956), Iraq ( Linnavuori 1993b), and Iran ( Linnavuori 2007). C. annulicorne has been also reported from Egypt ( Hoberlandt 1953) but Eckerlein & Wagner (1970) suggested that this record should be referred to C. celatum Wagner, 1969 , which was described from several specimens sampled in Giarabub ( Libya, close to border with Egypt) and a single male from Raouad ( Tunisia). Wagner provided no direct comparisons of C. celatum with congeners, suggested its close affinities to species with darkened first two antennal segments and distinguished his new species by the uniformly black head with pale base of vertex, although he mentioned in the original description that the dark pattern on head is variable and may be entirely absent within the type series.

Carapezza (1997) examined the type series of C. celatum as well as additional specimens he collected himself from Tunisia and found that head in these specimens is usually unicolorously yellowish to brownish, only exceptionally black with pale vertex. Carapezza further argued that C. celatum may represent a western race of C. diversicorne but may be distinguished from it by the smaller size, shape of the vesica and the ocular index.

We re-examined the holotype and five paratypes of C. celatum retained in the Zoological Museum, University of Hamburg, and largely concur with the conclusions reached by Carapezza (1997). The variation of head ground color within the series sampled by Eckerlein at once is shown on Figs. 1–5 , and clearly not allowing for species recognition. We also found that examined type specimens have essentially the same vesica structure as in authentically determined material of C. annulicorne from different localities (compare Figs. 15 and 16–17 ). Both species also share similar coloration of the dorsum and hind femur, sizes and ratios including ocular index (see Table 1 ). Males of both C. annulicorne and C. celatum have dark brown antennal segments I and II, with remaining segments pale yellow ( Figs. 5, 7 ). Female of C. annulicorne typically possesses incomplete dark rings on antennal segment I and more or less darkened base of segment II ( Fig. 6 ), while the coloration of antennal segment II in females from the type series of C. celatum is ranging from dark brown, distinctly paler at middle ( Figs. 2, 3 ) to entirely pale yellow ( Fig. 4 ). It is obviously impossible to separate any isolated group on the grounds of antennal coloration, and dissection of the male genitalia is essential for correct determination of a species. The variability in coloration is well known in other widespread Campylomma species, e.g. C. verbasci (see discussion in Carapezza 1997). On the ground of the foregoing discussion we propose the following synonymy: Campylomma annulicorne Signoret, 1865 = Campylomma celatum Wagner, 1969 , new synonymy.

Apex of vesica in ventral view: 15— Campylomma celatum Wagner, 1969 ; 16, 17— Campylomma annulicorne ( V. Signoret, 1865) ; 18–20— Campylomma diversicorne Reuter, 1878 ; 21— Campylomma simillimum Jakovlev, 1882 ; 22— Campylomma oertzenii Reuter, 1888 ; 23— Campylomma unicolor Poppius, 1914 ; 24— Campylomma ochraceum ( Scott, 1872) ; 25— Campylomma leptadeniae ( Linnavuori, 1975) : 26— Campylomma angustulum Steyskal, 1973 ; 27— Campylomma nigrifemur Wagner, 1976 .

Figures

FIGURES 1 – 11. Head, frontal view: 1 – 5 — Campylomma celatum Wagner, 1969: 1 — male, holotype; 2 – 4 — female, paratype; 5 — male, paratype; 6 – 7 — Campylomma annulicorne (V. Signoret, 1865): 6 — female, 7 — male; 8 – 9 — Campylomma diversicorne Reuter, 1878: 8 — female, 9 — male; head, dorsal view 10 – 11 — Campylomma ochraceum (Scott, 1872): 10 — male; 11 — female.

FIGURES 12 – 27. Vesica in lateral view: 12 — Campylomma annulicorne (V. Signoret, 1865); 13 — Campylomma celatum Wagner, 1969; 14 — Campylomma diversicorne Reuter, 1878.