Windsorispa, Sekerka, 2014

Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae 54 (1), pp. 257-314 : 291-293

Windsorispa gen. nov.

( Figs 19 , 31 )

Type species. Demotispa latifrons Weise, 1910 , here designated.

Other species transferred. Demotispa bicoloricornis Pic, 1926 and D. submarginata Pic, 1934 .

Description. Body broadly oval, moderately widening apically, about 1.7 times longer than wide. Length 5.2–5.4 mm. Body uniformly red ( Fig. 19 ).

Mouthparts moderately large, occupying apical third of head, prognathous ( Fig. 31 ). Labrum small, semicircular, narrower than mouth cavity, micro-reticulate. Maxillary palps as long as scapus. Labial palps nearly as long as pedicel and scapus combined. Clypeus very narrow, present as thin carina above labrum not projecting between antennal insertions. Antennal insertions deeply impressed. Interantennal area flat on the same level as vertex. Vertex microreticulate and impunctate. Antennae 11-segmented, strangulate, twice longer than pronotal length, two basal antennomeres shiny, pedicel elongate and scapus subglobose. Length ratio of antennomeres: 100: 107: 93: 82: 86: 70: 71: 72: 72: 66: 135, second antennomere 1.06 times longer than ¿rst and 1.14 times longer than third. Eyes normal, covering lateral anterior third of head, gena well visible, smooth and shiny. Head approximately as long as wide, not constricted.

Pronotum 1.5 times wider than long, semicircular, but strongly converging anteriad. Lateral margins smooth. Anterior margin smooth and weakly convex, tubercles possessing small seta situated internally next to anterior corner. Anterior corners subangulate small, but distinctly projecting. Basal corners obtuse and slightly projecting posteriorly. Lateral margins moderately explanate, distinctly separated from disc, gradually narrowing from base to apex, smooth, and slightly canaliculate. Basal margin convex, moderately projecting towards scutellum. Disc regularly convex, shiny, micro-reticulate and micro-punctate, laterobasally sparsely but coarsely punctate, punctures gradually coarser and denser towards base. Anterior and central parts impunctate.

Scutellum subpentagonal, smooth, shiny, micro-reticulate.

Elytra about 1.2 times longer than wide, broadly oval and widening apically, regularly convex, widest in apical 0.25, and with ten rows of punctures plus scutellar row. Base smooth, bisinuate, and slightly narrower than pronotum. Humeral angles broadly rounded, only indistinctly projecting. Humeral calli distinctly convex, smooth and shiny. Punctation completely regular, moderate. Punctures small, shallow. Intervals 1–2 times wider than puncture diameter, smooth. Punctures arranged regularly in rows with interspaces 0.5–1.0 times as wide as puncture diameter. Marginal row distinct in whole length, regular. Elytral margin moderately explanate, broadest around midlength and then moderately tapering apically. Its surface smooth, shiny, and micro-reticulate. Outer margin, slightly swollen, distinctly serrate, each denticle possessing small seta. Apex of elytra conjointly rounded, smooth. Surface of elytra smooth and shiny. Epipleura moderately broad, flat, micro-reticulate shiny and sparsely pubescent.

Prosternal process broad with convex, widening and projecting apex. Its surface shiny, apex and intercoxal part irregularly rugose and micro-reticulate. Mesothorax moderately sculptured. Metathorax smooth and shiny, laterally ¿nely shagreened. Abdomen micro-reticulate, sparsely punctate and densely pubescent. Ventrites I and II fused, suture visible but gradually weaker towards middle; remaining ventrites well separated.

Legs normal, all pairs equal. Tarsal claws broadly divergent, simple.

Sexual dimorphism indistinct, females slightly stouter and bigger.

Differential diagnosis. The genus is characterized by prognathous mouthparts, but not projecting, thus not visible from above, having a semicircular pronotum and the head without an interantennal carina. The genera most similar are Demotispa and Pseudostilpnaspis which differ in having a broad, at least two times wider than long, pronotum, the mouthparts slightly projecting anteriad, and the convex interantennal area.

Etymology. This genus is dedicated to my friend, and specialist in Cassidinae, Don Windsor ( Panamá), who introduced me to the fascinating biology of Neotropical Cassidinae and has always been great a fellow on our expeditions. The name is derived from his surname and generic name ‘ Hispa ’; gender is feminine.

Remarks. I include three species in Windsorispa , however, placement of W. bicoloricornis is tentative as I did not examine its type, thus the transfer is based only on the short description and comparative note by PIC (1926a).

Number of species. 3.

Key to species. A key to species has yet to be provided.

Biology. WEISE (1910b) stated that W. latifrons was abundantly collected on ‘Stechpalmen’ = genus Ilex (Aquifoliaceae) . This record was never interpreted after Weise till now.

Distribution. Colombia, French Guyana, and Venezuela.

Figures

Figs 12–24. Dorsal habitus. 18 – Katkispa insignis (Pic, 1934), syntype, Venezuela: Colonia Tovar; 13 – Weiseispa angusticollis (Weise, 1893), Ecuador: Río Palenque; 14 – Demotispa pulchella Baly, 1858, lectotype, Peru; 15 – Demotispa rubiginosa (Boheman, 1862), Panama: Chiriquí; 16 – Parimatidium rubrum (Boheman, 1850), French Guyana:St. Laurent du Maroni;17 – Pseudostilpnaspis lata (Baly, 1885), Panama:Santa Clara; 18 – Pseudimatidium elaeicola Aslam, 1966, Colombia: Calima area; 19 – Windsorispa latifrons (Weise, 1910), Colombia: SantoAntonio; 20 – Cephaloleia Àavipennis Baly, 1869, Ecuador: Río Hollín; 21 – Melanispa sp., Guadeloupe; 22 – Parentispa formosa (Staines, 1996), Panama: La Fortuna; 23 – Stenispa attenuata Baly, 1875, Panama: Gamboa; 24 – Lechispa parallela (Pic, 1930), syntype, Argentina: Rosas. All scale bars = 2.5 mm.

Figs 29–34. Ventral aspects of head. 29 – Cyclantispa gracilis (Baly, 1885); 30 – Katkispa insignis (Pic, 1934); 31 – Windsorispa latifrons (Weise, 1910); 32 – Weiseispa angusticollis (Weise, 1893); 33 – Parentispa formosa (Staines, 1996); 34 – Lechispa parallela (Pic, 1930). Scale bars = 0.5 mm.