Eupalea borowieci, Szawaryn & Czerwiński, 2022

Szawaryn, Karol & Czerwiński, Tomasz, 2022, New Coccinellidae (Coleoptera, Coccinelloidea) from Napo Province in Ecuador, European Journal of Taxonomy 845, pp. 30-65 : 39-43

Eupalea borowieci sp. nov.

urn:lsid:zoobank.org:act:841C8A61-9400-49EA-ACB9-DE2627351241

Figs 3A–D , 5A–C , 6

Diagnosis

Eupalea borowieci sp. nov. belongs to the conglomerata species group which contains: E. conglomerata Crotch , E. fryii Crotch , E. suffriani Mulsant, 1850 and E. melzeri (Korschefsky, 1935) ( Almeida & Gordon 1990) . The group is characterized by an elongate oval body form and the dorsum yellow with several large, elongate, brown spots ( Almeida & Gordon 1990). This species differs from other species within this species group by a unique arrangement of dorsal maculae ( Fig. 5A ) and a much darker, almost black color. The male genitalia are most similar to those of E. reticularis González, 2015 by having the penis with thickening in half of its length and a similar shape of the tip, but differs by having the penis guide in inner view with margins parallel, straight in lateral view, while in E. reticularis in inner view margins taper into tip, and in lateral view they are sinusoidal ( González 2015a).

Etymology

Dedicated to the Polish entomologist and world expert in Cassidinae ( Chrysomelidae ), collector of the type series, Lech Borowiec (University of Wrocław).

Material examined

Holotype ECUADOR • ♂; “ Napo prov., Cosanga vic., Yanayacu St.-Rio Aliso road 2000–2200m, 00°35′S / 77°53′W, 30 XI 2009, leg. L. Borowiec ”; MNHW.

Paratypes ECUADOR • 3 ♂♂, 3 ♀♀; same collection data as for holotype; MNHW • 1 ♀; same collection data as for holotype; MIZ • 1 ♀; same collection data as for preceding; MIZ • 2 ♂♂, 2 ♀♀; “ Cosanga vic., Yanayacu Biol. Station, 2000–2200m, 00°35′S / 77°53′W, 23 XI – 17 XII 2009, leg. L. Borowiec ”; MNHW • 1 ♀; same collection data as for preceding; MIZ • 1 ♀; “ Cosanga vic., near river 1900m, 00°34′42.3′′S / 77°51′59.3′′W, 25 XI 2009, leg. L. Borowiec ”; MNHW • 1 ♂; “ Cosanga vic., near river 1900m, S 00°34′42.3′′ /W 77°51′59.3′′, 25 XI 2009, leg. R. Ruta”; MNHW • 1 ♂; “ Cosanga vic., Yanayacu Station, Bamboo hill trail & stream, 2125 m, S 00°36′18.4′′/ W 77°53′09′′, 5 XII 2009, leg. R. Ruta”; MIZ • 1 ♀; “ Cosanga , Yanayacu road, 2 XII 2009, leg. R. Ruta”; MNHW .

Description

BODY. Length 3.50 mm; TL/EW = 1.20; PL/PW = 0.66; EL/EW = 1.20. Body ( Fig. 5A ) elongate oval, slightly acuminate apically, moderately convex ( Fig. 5B ), winged; head ( Fig. 5C ) black, pronotum yellow with basal margin and half length of lateral margins black, with three black maculae, one subtriangular placed medially, and two rounded lateral spots joined to the basal margin; elytra yellow with suture and apex black, with four black spots on each elytron: two lateral, elongate in shape (one placed anteriorly, second posteriorly), and two placed medially (anterior one subtriangular, separated from suture, posterior one smaller, sub-rounded and fused with suture); clypeus, mouthparts, antennae, tibiae and tarsi light brown; prosternum, meso- and metaventrite, abdomen, coxa and femora infuscate, dark brown to black. Lateral and anterior edges of pronotum and lateral edges of elytra translucent. Dorsum with single size punctures, punctures on pronotum coarser than on elytra. Dorsum with moderately long and uniform pubescence, not forming pattern on elytra.

HEAD. Head ( Fig. 3A–B ) partially covered by pronotum; ventral antennal grooves short, shallow. Eyes convex, dorsally with inner orbits arcuate; ocular canthus distinct, reaching half width of an eye; interocular distance about 0.5 × as wide as head across eyes; interfacetal setae distinct. Antenna about 0.9 × as long as head capsule width, composed of 11 antennomeres; scape swollen, 2 × as long as pedicel; pedicel narrower than scape, barrel-shaped, about 1.5 × as long as wide; antennomere 3 longer than pedicel, about 2.3 × as long as wide. Antennal club consisting of three antennomeres; antennomeres 9–11 asymmetrical, terminal antennomere distinctly elongate, truncate apically. Anterior clypeal margin straight. Labrum truncate at apex. Mandible bidentate at apex. Maxillary cardo transverse with outer angle reaching slightly outside of mouth cavity; terminal palpomere slightly widened, obliquely truncate. Submentum transverse; mentum sub-trapezoidal, anterior edge slightly emarginate with few long hairs, ventral surface with horseshoe-like impression; prementum transverse; ligula with few long hairs; labial palps separated by distance about equal to width of palpomere; apical palpomere as long and as broad as penultimate one.

PROTHORAX. Pronotum ( Fig. 3A ) with anterior corners rounded, produced anteriorly, not swollen with regular border; anterior margin without border; lateral margin with border complete, and with deep groove connected with basal margin and fading on anterior corner; hind margin with border complete. Prothoracic hypomeron ( Fig. 3D ) without cavities; notosternal suture distinct; prosternal process protuberant, lateral carinae incomplete, long, reaching to anterior projection, but not joined apically. Prosternum ( Fig. 3C ) in front of coxa about 0.7 × as long as coxal longitudinal diameter at the same position, with visible border, interrupted only on projection; procoxal cavity oval with very small lateral slit, with visible bordering line.

PTEROTHORAX. Mesoventrite ( Fig. 3C ) with anterior edge straight with complete raised border; mesoventral process at median width of coxa about equal as corresponding coxal diameter; mesometaventral articulation with suture visible; junction straight. Scutellar shield pentagonal ( Fig. 3A ); surface punctate and setose. Elytra with sides rounded; with lateral margins slightly flattened and fading only in their apices dorsally; humeral angles absent; elytral epipleuron wide, about 3.0 × as wide as corresponding metaepisternum, incomplete apically, inner margin with border line straight, fading before base of elytron. Metaventrite with discrimen entirely visible; metaventral postcoxal lines joined at middle, laterally complete, straight.

LEGS. Legs with trochanters subtriangular; tibial apices without spurs; tarsi with four tarsomeres, third very small; all tarsal claws in both sexes bifid. Empodium present as long, simple seta.

ABDOMEN. Abdomen ( Figs 3D , 6A–B ) with six ventrites in both sexes; ventrite 1 the same length as ventrites 2 and 3; ventrites 4 and 5 slightly shorter than ventrites 1–3; abdominal postcoxal lines separate medially, complete, reaching anterior margin of ventrite 1, posteriorly reaching half length of ventrite 1; hind margin of ventrite 5 in male slightly emarginate ( Fig. 6B ), in female with small median projection ( Fig. 6A ); tergite XIII ( Fig. 6E ) and ventrite 6 ( Fig. 6F ) in male truncate apically; tergite VIII ( Fig. 6C ) and ventrite 6 ( Fig. 6D ) in female rounded apically. Sternites VIII and ventrites VIII in both sexes with long hairs on hind margin.

MALE TERMINALIA AND GENITALIA. Sternite IX ( Fig. 6K ) with additional sclerite bilobed at base of apodeme; apodeme stout, straight, its base slightly widened and partially membranous laterally; tergite X short, transverse. Tegmen in inner view ( Fig. 6M ) with lateral margins of penis guide parallel and acute at apex; penis guide tip in lateral view ( Fig 6L ) straight; parameres, well developed, gently widening to apex, slightly longer than penis guide, with fringe of dense, long setae on apices; tegminal strut stout. Penis capsule with inner arm narrow, outer arm broadened but short; penis with thickening in half of its length ( Fig. 6G ); penis tip ( Fig. 6H–I ) acute, slightly curved, partially membranous.

FEMALE GENITALIA. Sperm duct long, uniform in diameter; infundibulum absent; bursa with sclerotized, elongate additional sclerite near base of sperm duct; spermatheca vermiform, C-shaped, distinctly broadened from half its length to apex, nodulus and ramus present, spermathecal accessory gland membranous; coxites elongate, narrow; styli present.

Figures

Fig. 3. SEM images. A–D. Eupalea borowieci sp. nov., paratype (MIZ). E. Hyperaspis rutai sp. nov., paratype (MIZ). F. Hinda ecuadorica Gordon & Canepari, 2013, ♂, (MIZ). A. Head and pronotum. B. Head, ventral. C. Prosternum and mesoventrite. D. Habitus, ventral view. E. Head, dorsal view. F. Distal part of abdomen, ventral view.

Fig. 5. Habitus. A–C. Eupalea borowieci sp. nov., ♂, holotype (MNHW). A. Dorsal view. B. Lateral view. C. Frontal view. D–F. Psyllobora marshalli Crotch, 1874, sex (MNHW). D. Dorsal view. E. Lateral view. F. Frontal view. G–I. Chnoodes yanayacu sp. nov., ♂, holotype (MNHW). G. Dorsal view. H. Lateral view. I. Frontal view. J–L. Exoplectra misahualli sp. nov., ♂, holotype (MNHW). J. Dorsal view. K. Lateral view. L. Frontal view.

Fig. 6. Eupalea borowieci sp. nov. A. Paratype (MIZ), ♀, abdomen. B. Holotype (MNHW), ♂, abdomen. C. Paratype (MIZ), ♀, tergite VIII. D. Paratype (MIZ), ♀, ventrite 6. E. Holotype (MNHW), ♂, tergite VIII. F. Holotype (MNHW), ♂, ventrite 6. G. Holotype (MNHW), penis, lateral view. H. Holotype (MNHW), penis tip, lateral. I. Holotype (MNHW), penis tip, inner. J. Paratype (MIZ), ♀, genitalia, ventral. K. Holotype (MNHW), ♂, segments IX and X, dorsal view. L. Holotype (MNHW), tegmen, lateral view. M. Holotype (MNHW), tegmen, inner view.