Stoiba flavicollis (Klug, 1829)

Shin, Chulwoo & Chaboo, Caroline S., 2012, A revision and phylogenetic analysis of Stoiba Spaeth 1909 (Coleoptera, Chrysomelidae), ZooKeys 224, pp. 1-36 : 13-15

Stoiba flavicollis (Klug, 1829) Figures 23-25

Cassida flavicollis Klug 1829: 14 [original description as key couplet 204].

Chelymorpha flavicolli s: Boheman 1854: 25 [description], 1856: 75 [checklist], 1862: 199 [checklist]; Suffrian 1868: 238 [description]; Gemminger and Harold 1876: 3640 [catalog]; Leng and Mutchler 1914: 458 [list of the West Indies Coleoptera ].

Stoiba flavicollis : Spaeth 1909: 720 [catalog], 1914: 51 [catalog]; Blackwelder 1946: 743 [checklist]; Wilcox 1975: 151 [checklist]; Medvedev 1993: 9 [checklist]; Borowiec 1996: 229 [faunistic record], 1999: 130 [catalog], 2002: 116 [checklist]; Takizawa 2003: 106 [checklist]; Borowiec and Świętojańska 2012 [online catalog].

Chelymorpha nigripennis : Sturm 1826: 151 [nomen nudum].

Type material.

Syntypes (6) (one pictured in Figs 23-25), each with label “14169” [ Klug’s collection], each with red label added "SYNTYPE, Cassida flavicollis Klug 1829, det. by C. Shin 2012", deposited in ZMHB.

Type locality.

“Cuba”

Specimens examined

(with fully developed wings). Cuba: 14169 [ Klug’s collection] (ZMHB: six syntypes); Isla de la Juventud: June 29 1921 (AMNH: 1); Prov. Ciego de Ávila: Jaronu Camaguey, Oct. 20 1934, LC Scamuzza, Bushes (USNM: 1); La Havana: ex K Kaab collection, 1916 (USNM: 3); ex FC Bowditch collection (MCZ: 5); Prov. Pinar del Río: Las Anima, S. 1500 ft. Sept. 3−5 1934, SC Bruner and AR Otero (USNM: 3); Rangel, 1935, Zayas-Garcia (UWCP: 4); Vinales, Sept. 16−22 1913 (AMNH: 1); Vinales, May 14 1913 (USNM: 1); Vinales, San Vincente, July (USNM: 1); Sierra de los Organos Vinales, 16 Jan. 1967 (UWCP: 1); Soroa, July 6−7 1974, Z and M Meszaros (UWCP: 1); Sierra Anafe, Nov. 20 1932 (MMUE: 1, USNM: 1); Sierra Anafe, July 23 1932 (MCZ: 2); Sierra Rangel, 500−1000 ft. Aug. 28−30 1927 (USNM: 1); Aspiro-Rangel, June 16 1959, NW Sanderson, C59−28 (INHS: 3); San Blas WM Mann, 1918 (USNM: 2); Sierra Rangel, 1500 ft. Aug. 29 1927 (USNM: 1); Santiago de Cuba: Gran Piedra, June 29 1955, Otero, AFA. (AMNH: 1); Loma del Gato, Sierra del Cobre, 2600−3325 ft. Sept. 24−30 1935, J Acuña, SC Bruner, LC Scaramuzza, EEA. Cuba Ento Na.10643 (USNM: 1); Bito de Cardero Turquino, June 1964, Zayas-Garcia (UWCP: 1); Loma de Gato Sierra Maestra, May 26−28 1959 (INHS: 1); Loma de Gato Sierra del Cobre, Sept. 24−30 1935 (USNM: 1); Pico Turquino, June 1936, Darlington (USNM: 3); Villa Clara: Piedra Gorda WM (USNM: 1); Gortham acc. 68498 (USNM: 1); ex Geittner collection (HNHM: 1); ex Em Friv collection (HNHM:1): no further data (BMNH: 4; MCZ: 1; FMNH: 1; MMUE: 5; MZH: 10; NHRS: 5; USNM: 1; ZNHB: 17); Mexico: Yucatan: GF Gaumer (SEMC: 3).

Specimens examined

(with brachypterous wings). Cuba: Prov. Sancti Spíritus: Jarahueca Ote. July 14-18 1927, SC Bruner (USNM: 1); Santiago de Cuba: Gran Piedra 1100 m (HNHM: 1); Loma de Gato, Range, July 3-7 1936, 3000 ft. (MCZ: 4); Loma del Gato, Sierra del Cobre, 2600-3325 ft. Sept. 24-30 1935, ex F Monrós collection (USNM: 7); Pico Turquino, South side, 1000 ft. June 1936 (USNM: 1); Pico Turquino, South side, 30 May 1985 (UWCP: 1); Sierra Maestra, July 10-20 1922, 600-900 m, CH Ballou and SC Bruner (USNM: 1); Loma de Cala to Pico Palma Mocha, Sierra Maestra, 3600-3900 ft. May 16 1948, J Acuna (USNM: 1); Loma Cardero Pico Turquino, Aug. 1 1935, J Acuna Col. (USNM: 1); Pinares 1918 WM Mann (USNM: 1); no further data (MCZ: 2, MMUE: 2, ZMHB: 2); Mexico: Yucatan: GF Gaumer (SEMC: 1).

Diagnosis.

Stoiba flavicollis is a widely distributed species with many morphological variations such as pronotal shape (trapezoidal, rarely hemispherical without angle at postero-lateral 1/3), elytra explanate margin (broadest between anterior 1/3 and middle), elytral color (brownish black to black, often with metallic luster), and hind wing (fully-developed or brachypterous). It is mainly distinguished from Stoiba bruneri by pale antennomere XI, from Stoiba clarildae by elytra shape and coloration with metallic luster, and from Stoiba indivisa by distinct posterior half of elytra margin and black elytra with weak metallic luster.

Description.

Adult (n=118) length 6.8−9.4 mm, width 5.6−7.5 mm. Body oval (Figs 23-25), slightly or distinctly discontinuous between pronotum and elytra in dorsal view (individual variation); profile moderately convex, highest between anterior 1/3 of elytra and middle. Antennae (Figs 23, 51) reaching elytral base, brown to pale brown; antennomeres I, III and XI same in length, 2.5 times long than II; V−XI pubescent with long setae on each antennomere apex. Mandible (Fig. 58) with 5 teeth. Maxilla (Fig. 60) compact; palpifer weakly sclerotized; palpomere I 0.5 times as long as palpifer with setae apically; II 1.5 times as long as palpifer with apical region setose; III 0.8 times as long as II, setose apically; palpomere IV 1.2 times as long as III, setose with sensilla structure on apex. Labium (Fig. 62) compact; prementum subquadrate with anterior edge notched; ligula half oval with long setae; labial palpus 3-segmented; palpomere I triangular with long setae; II 2 times as long as I with long setae sub-apically; III more sclerotized than I and II with short setae and sensilla structure on apex. Pronotum (Fig. 23) hemispherical with anterior margin linear or slightly emarginate; lateral margin rounded or slightly angled or slight expanded without angle; disc moderately distinct, slightly convex; surface scale-like, smooth; lateral margin shallowly and sparsely punctate, or rarely smooth. Procoxal process (Figs 25, 64) black with hypomeron brown. Scutellum blackish brown to black. Elytra (Fig. 24) moderately convex, often bluish black to black, rarely brownish black, finely punctate; margin broadest between anterior 1/3 and middle, narrower posteriorly. Hind wing fully developed (Fig. 92) or brachypterous (Fig. 93). Legs (Fig. 25) brown except for coxae, trochanters, base of pro- and meso-femur and proximal 1/4 of meta-femur dark brown to black. Male genitalia (Figs 68-69) curved, laid laterally (deversement); aedeagal base piece rounded with membranous structure, terminal end pointed; tegmen Y-shaped; spicule V-shaped with jointed part slightly extended; ejaculatory duct loosened. Spermatheca (Fig. 75) falcate; receptacle round with 2 openings; pump area 4 times as long as receptacle.

Distribution.

Cuba: Isla de la Juventud; Prov. Ciego de Ávila;Pinar del Río; Santiago de Cuba; Villa Clara; Mexico: Yucatan.

Remarks.

Stoiba flavicollis is well distributed over a large area of Cuba. It is the only species with both fully developed and brachypterous wings (Figs 92-93) in our study. In the present study, we located four adult specimens collected by GF Gaumer (Dr. George Franklin Gaumer, American botanist, 1850-1929) in Yucatan, Mexico, deposited in the SEMC, and identified as Stoiba flavicollis . We confirmed this species identification; three of Gaumer’s four specimens have fully developed wings and one is brachypterous. This finding represents the possible extension of a range for Stoiba from the Caribbean islands to the Mexican mainland. However, there is no further known record of Stoiba flavicollis from Yucatan or other Mexican regions.