Stolas selecta ( Spaeth, 1928 )

Sekerka, Lukáš, 2020, Commented catalogue of Cassidinae (Coleoptera: Chrysomelidae) of the state of São Paulo, Brazil, with remarks on the collection of Jaro Mráz in the National Museum in Prague, Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 60 (2), pp. 667-707 : 697

* Stolas selecta ( Spaeth, 1928)

( Figs 19–20 )

Published records. Amparo; São Paulo (SඉൺൾඍΗ 1928).

Type material examined. Sඒඇඍඒඉൾඌ: 1 ♀ ( Fig.19 ), pinned,‘ SAÕ PAULO | BRAS. MRÁZ LGT.| MUS.PRAGENSE [w, p, cb, bf] || Pseudomesomphal. | selecta m. ♀ [hw by F. Spaeth] | Spaeth determ. [w, p, cb] || COTY- PUS [pink, p, cb]’ ( NMPC); 1 J ( Fig. 20 ), pinned, ‘ Sao PAULO; Mráz | legit. Brasilia | mus. R. BOH, [w, p, cb] || Pseudomesomphal. | selecta m. cot. [hw by F. Spaeth] | Spaeth determ. [w, p, cb]’ ( NMPC); 2 JJ 3 ♀♀, pinned, ‘ SAÕ PAULO | BRAS. MRÁZ LGT. | MUS.PRAGENSE [w, p, cb, bf]’ ( NMPC); 2 ♀♀, pinned, ‘ SAO PAULO | Br. MRÁZ [w, p, cb]’ ( NMPC);3 JJ, pinned,‘ Sao PAULO;Mráz | legit.Brasilia | mus.R.BOH, [w, p, cb]’ ( NMPC);1 J, pinned,‘ Sao PAULO; Mráz | legit.Brasilia | mus. R. BOH, [w, p, cb] || Pseudomesomphal. | retis Wag. [hw by F. Spaeth] | Spaeth determ. [w, p, cb]’ ( NMPC). Each specimen was provided with an additional label: ‘ SYNTYPUS | Pseudomesomphalia | selecta | Spaeth, 1928 | L. Sekerka des. 2020 [r, p, cb, bf]’.

Additional record. BRAZIL: Sඞඈ Pൺඎඅඈ: São Paulo Capital, v.1883, 6 spec., A. Fry leg. ( BMNH).

Distribution. Brazil (Mato Grosso, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, São Paulo).

Remarks. SඉൺൾඍΗ (1928) described the species based on numerous specimens, mainly collected by J. Mráz, but did not mention the precise number of specimens nor he did mention one particular specimen being the type. In NMPC there were two series, one identified as S. selecta while only two specimens were labelled with Spaeth’s original label as cotypes, and another identified as S. retis (Wagener, 1881) . All specimens have the same morphology and differ only in colour. I assume that Spaeth identified the entire series as S. retis at first and later on, when he decided that it was actually a new species, he considered the entire series in NMPC to be part of the type series. Therefore, I consider all specimens part of the type series and they all are syntypes. The series display variability in colouration and size of reticulation of elytra. Six specimens are green-blue (one of them being the labelled male syntype, Fig. 20 ), one specimen is blue-green (the labelled female syntype, Fig. 19 ), four are dark blue (three of them were identified as S. retis ), and finally two specimens are nearly black with obscure blue tint.

Figures

Figs 13–20. Dorsal aspects. 13–17 – Stolas lineaticollis (Boheman, 1850), variability, all collected by J. Mráz; 18 – Stolas perfuga (Spaeth, 1926), syntype, ♀; 19–20 – Stolas selecta (Spaeth, 1928), syntypes: 19 – ♀; 20 – J. Scale bars = 2 mm.