Calvariopsis borowieci, Ruta, 2019

Ruta, Rafał, 2019, Calvariopsis gen. nov., a new genus of Neotropical Scirtidae (Coleoptera: Scirtoidea), Zootaxa 4604 (1), pp. 1-41 : 12

Calvariopsis borowieci sp. nov.

( Figs 1A , 9 )

Type material. Holotype, male ( DBET): “ ECUADOR \ road Yanayacu-Rio \ Aliso, 30 XI 2009 \ leg. Lech Borow- iec” . Paratypes. Male ( DBET): “Ecuador 77, Napo prov., \ Cosanga vic., Yanayacu \ Station, 2000–2200m, \ 00°35’S / 77°53’W, \ 17 XII 2009, leg. R. Ruta ”. 8 females ( DBET) : same data as holotype. Female ( DBET): “Ecuador 64, Napo prov., \ Cosanga vic., Yanayacu \ Station, Bamboo hill trail, \ 2125 m, S 00º36’18.4’’ \ W 77º53’09.0’’, 9 XII \ 2009, leg. Rafał Ruta ”. 2 females ( DBET) : “ ECUADOR, Napo prov. \ Cosanga vic., Yanayacu \ Station, 2000–2200m, \ 00°35’ S, 77°53’W, \ 23 XI–17 XII 2009, \ leg. L. Borowiec ”. Female ( DBET): “Ecuador 19, Napo prov., \ Cosanga vic., Yanayacu \ Station, moist forest near \ the road, 2000–2200m, \ 00°35’S / 77°53’W, 27 \ XI 2009, leg. Rafał Ruta ”. Female ( SEMC): “ ECUADOR: Napo, Cosanga \ 1.0 km N on Baeza-Tena \ Road then 1.5 km SW on road to \ Sierra Azul, 2150m \ 0°35’24”S, 77°53’19”W \ 5–7 NOV 1999; Z. H. Fallin \ ECU1F99 124 flight intercept trap ”. Female ( DBET): “Ecuador 41, Napo prov., \ Cosanga vic., Antisana \ trail, Yanayacu, 3 XII \ 2009, leg. Rafał Ruta ” .

Diagnosis. Moderately large (TL 2.6–3.1 mm), resembling black individuals of C. yanayacuense sp. nov. Penis very long and narrow, apical plate of tergite VIII with M-shaped median process flanked with shallow emarginations covered with distinct denticles. Genitalia similar to that of C. fourgassiense sp. nov., but median process of tergite VIII is longer and better developed in C. borowieci sp. nov. Similar to C. venezuelense sp. nov. but body is less elongated and its sides are curved.

Description. Male. Body oblong oval, convex, covered with brown, suberect setae. Body uniformly dark brown, venter brown, legs yellowish-brown, antennae yellowish, darkening towards apex. Head very broad, 1.6× wider than width of interocular space, with distinct but fine punctation, punctures small, granulate, separated by a 3.0× diameter of a puncture, eyes moderately large, not protuberant. Pronotum transverse, widest at its base. Disc of pronotum with fine, granulate punctation, punctures separated by 2.0–3.0× diameter of a puncture. Posterior margin of pronotum subtly bisinuate. Anterior angles protruding anteriorly, subtriangular, posterior angles obtuse. Scutellar shield subtriangular, with very subtle punctation. Elytra oblong, without traces of longitudinal ridges, sides subparallel in basal 1/2, curved and regularly converging to apex in posterior 1/2. Humeri well marked. Punctation stronger than on pronotum, punctures elongate, distance between punctures ca. the diameter of a puncture.

Male genitalia. Penis (L 0.97 mm, W 0.10 mm, Figs 9 A–B) very long and narrow, widest in basal portion, parameroids short, very narrow, curved, rounded at apices, trigonium subtriangular, narrow, pointed at apex. Teg- men (L 0.78 mm, W 0.21 mm, Fig. 9C ) very long, sides diverging, apex with short lateral lobes, covered with setae. Sternite IX (L 0.32 mm, W 0.25 mm, Fig. 9D ) subrectangular, with paired apodemes, apical margin rounded, api- cal portion covered with short, sparse setae. Tergite VIII (L 0.47 mm, W 0.37 mm, Fig. 9E ) with short apical plate, central portion of apical plate produced, M-shaped, with V-shaped emargination at apex, lateral portions of apical margin with a few denticles, apodemes distinctly longer than apical plate, diverging. Tergite IX (L 0.45 mm, W 0.31 mm, Fig. 9F ) with membranous apical plate, apodemes longer than apical plate.

Female. Body ( Fig. 1B ) dark brown to black, with no orange pattern on dorsal portion, TL (n = 5) 2.60–3.10 (2.88) mm. Apical portion of each elytron with two concavities, shallow one and deeper one, situated closer to suture and covered with longer setae, forming a peculiar hooked tuft of setae ( Fig. 7A ). Gonocoxites ( Fig. 10A ) broadly triangular, gonostyli subapical, bursal sclerite (L 0.35 mm W 0.13 mm, Figs 10 B–C) elongated, widened in posterior portion, with subconical outgrowth in middle.

Measurements and ratios. Males (n = 2) TL 2.60–3.13 (2.87) mm, PL 0.50–0.57 (0.53) mm, PW 1.07–1.23 (1.15) mm, EL 2.33–2.67 (2.50) mm, EW 1.60–1.93 (1.77) mm, TL/EW 1.6, PW/PL 2.1–2.2 (2.2), EL/EW 1.4–1.5 (1.4), EL/PL 4.7.

Distribution. Known from localities in Napo province, Ecuador.

Etymology. Named after Prof. Lech Borowiec, an expert in Cassidinae (Chrysomelidae) systematics, my teach- er, member of the expedition to Ecuador in 2009 and collector of many specimens examined in the present study.

Figures

FIGURE 1. Calvariopsis gen. nov., dorsal view. A) C. borowieci sp. nov., male; B) C. borowieci sp. nov., female; C) C. four- gassiense sp. nov., male; D) C. panamense sp. nov., male; E) C. peruviana sp. nov., Dept. Cusco, male; F) C. peruviana sp. nov., Callanga, male; G) C. peruviana sp. nov., Dept. Junín, male; H) C. picta sp. nov., Callanga, male; I) C. pittieri sp. nov., male; J) C. pittieri sp. nov., female; K) C. sculptipenne (Pic, 1931), female; L) C. venezuelense sp. nov., male; M–O) C. yanay- acuense sp. nov., males; P) C. yanayacuense sp. nov., female; Q) C. bituberculata sp. nov., male; R) C. brasiliense (Pic, 1916), male; S) C. brasiliense, female; T) C. guyanense sp. nov., male; U) C. kawense sp. nov., male; V) C. nana sp. nov., male; W) C. saopaulense sp. nov., male; X) C. wittmeri sp. nov., male; Y) C. sp., Bolivia, female. Scale bars = 1.0 mm.

FIGURE 7. Calvariopsis gen. nov., group I, females, apical portion of elytra, SEM images of excitators. A) C. borowieci sp. nov.; B) C. sp., Costa Rica; C–D) C. sculptipenne (Pic); E–F) C. yanayacuense sp. nov.

FIGURE 9. Calvariopsis borowieci sp. nov., male. A) penis; B) apex of penis; C) tegmen; D) sternite IX; E) tergite VIII; F) tergite IX. Scale bar = 0.25 mm.

FIGURE 10. Calvariopsis gen. nov., female genitalia, ascl—anterior portion of bursal sclerite, bsa—bursa, bsl—bursella, gla—gland, oscl—outgrowth of bursal sclerite, pscl—posterior portion of bursal sclerite, scl—bursal sclerite. A–C) C. borowieci sp. nov.; D) C. pittieri sp. nov.; E–H) C. yanyacuense sp. nov.; I–K) C. brasiliense (Pic), specimen from Sao Paulo; L–M) C. brasiliense (Pic), specimen from Santo Amaro. A, D, E, L) genital tract; B, C, G, H, M) bursal sclerite; F, K) gonocoxites; I) sternite VIII; J) ovipositor.