Cyrea napoensis González & Větrovec, 2021

González, Guillermo & Větrovec, Jaroslav, 2021, New species and records of Neotropical ladybirds (Coleoptera: Coccinellidae), Revista Chilena de Entomología (Rev. Chil. Entomol.) 47 (2), pp. 331-374 : 334-336

Cyrea napoensis González & Větrovec , new species

( Figs. 1 a-1l)

Holotype ♂ “ Ecuador, prov. Napo (24) / 2.7 km SW of Diaz de Pineda , / S 00°19’10” W 77°45 ’33” / 1.xii.2006; 1560 m / M. Fikáček & J. Skuhrovec lgt”, “small orchards of local fruit- / trees near to small stream / and local settlements”, “ ♂ 2016” ( NMP).

Diagnosis. The species is distinguished by a combination of the elytral color pattern and the genitalia of the male. The elytral color presents an extreme variation of the common pattern in the genus of black elytra with 5 yellow spots (2:2:1); these spots have developed to such an extent that they only leave a wide, dark sutural stripe, two irregular dark spots on the disc and two dark projections from the lateral edge towards these spots ( Figs. 1a, 1c ); this color pattern bears a slight resemblance to C. marion Canepari & Gordon, 2016 and C. tamara Canepari & Gordon, 2016 , both from Ecuador, and C. jeanne Canepari & Gordon, 2016 from Colombia. The male genitalia have parameres with apical projections or “ears” ( Figs. 1i, 1l ), which places it in the “emiliae ” group defined by Canepari et al. (2016), none of whose species presents an elytral design similar to that indicated above.

Description. Color pattern ( Figs. 1 a-1e). Head and antenna yellow, mouthparts yellowish brown. Pronotum yellow with a black basal stripe, extended 1/3 of the length, indented in a triangle in the apex and tapering in the lateral 1/4, where it projects forward by the lateral border about 1/3 of the pronotum length. Scutellar shield black. Elytra yellow with a black, sub-triangular, humeral spot which extends up to 2/5 of the elytron’s length; a second spot, in a longitudinal line with the first, at 2/3 length, smaller and longitudinally oval; a black sutural stripe, approximately one sixth the width of the elytron, widened in 1/3 the length of the elytron and on the elytral declivity, and a narrow black lateral border widened in 1/3 and 3/4 of the length, with projections towards the two discal spots. Ventral color yellow, hypomeron with a thin brown lateral border, prosternum, mesoventrite and metaventrite black, epipleuron with brown lateral borders, abdomen black ( Fig. 1b ). Legs yellow, except for femora reddish-brown. Morphology. Body oval, convex, widest at middle of the elytra ( Figs. 1a, 1c ). Frons about twice the width of an eye. Eyes oval, with short eye canthus. Clypeus with apical margin weakly emarginate ( Fig. 1d ). Antenna with eleven antennomeres, the last four forming a spindle-shaped club. Apical maxillary palpomere securiform with sides slightly diverging. Carinae on prosternal process convergent towards the anterior border where they join into a single carina, almost obliterated towards the posterior border. Epipleuron narrow, grooved, descending externally, deeply emarginate for reception of femoral apices. Metaventrite with tuft of setae. Tufts of large hairs medially in ventrites 1 to 4 ( Fig. 1b ). Abdominal postcoxal lines incomplete, angled to posterior ventrite margin, curved along apical margin of ventrite, apex extended forward without reaching the anterior or lateral borders. Without pores between ventrites 4–5 ( Fig. 1f ). Protibia with outer margin slightly arcuate, smooth. Head punctures very regular, separated by 1/2 diameter or less, very fine, pronotal punctures larger than on head, elytral punctures slightly larger than pronotal punctures; metaventrite punctures larger than on elytra, coarse, separated by less than 1/2 diameter; punctures in median area of ventrite 1 similar to those on elytra, smaller laterally, very fine in ventrites 2 to 5 and scarce in ventrite 6. Pubescence only on the ventral side, hairs short and regular. Male terminalia. Apex of ventrite 5 slightly notched in the central 2/3, without lateral tubercles, apex of ventrite 6 truncate ( Fig. 1f ). Tegmen twice as long as wide, phallobase sub-square. Tegminal strut as long as the rest of the tegmen. Penis guide with straight sides, slightly convergent, ending in a rounded tip in the distal 1/6, inclined slightly to one side ( Fig. 1g ); in lateral view rather straight on the outer side, while on the inner side it presents semicircular projections on each side, the largest extending almost as long as the length of the penis guide ( Figs. 1h, 1i ). Parameres straight but with very sinuous borders, with a small “ear” in apex ( Fig. 1g ), in lateral view of very irregular shape, somewhat triangular, with sinuous borders especially on the outer side, which ends in a truncate border; the “ear”, not very evident at the outer side at apex, ( Fig. 1j ). Penis narrow and curved in the basal 2/3, almost straight in the distal 1/3; presents a slight curvature in the distal 1/8 towards the outer side and a widening ending in a bifurcation in which a membranous projection is inserted that extends on both sides of the apex. Penis capsule with outer arm sub-rectangular, a little longer than wide, inner arm somewhat shorter and sub-quadrate, almost perpendicular to the tube, basal margin concave, accessory piece large ( Figs. 1 i-1k). Female. Unknown.

Measurements (mm): TL 3.3; PL 0.8; PW 1.9; EL 2.5; EW 2.3; GD 1.7.

Geographic distribution. Ecuador, Napo province.

Remarks. The genus Cyrea Gordon & Canepari, 2013 was reviewed by Canepari et al. (2016) for South America, where they recognized 121 species, 76 of them described as new. Part of the tribe Brachiacanthini , the genus is characterized by simple tibiae and by the absence of pores between ventrites 4-5. The paramere with an “ear”, even though it is not very apparent in this species, similar to that of Cyrea emiliae ( Crotch, 1874) , confirms it in the genus and places it in the “emiliae ” group defined in Canepari et al. (2016).

Etymology. The name of the species is given by the province of Napo, where the holotype was found.

Figures

Figures 1a-1w. a-l: Cyrea napoensis n. sp.; a-e: habitus (dorsal, ventral, lateral, frontal, posterior); f: abdomen; g-h: tegmen; i: penis guide; j: paramere; k-i: penis and detail. m-w: Dilatitibialis manaus n. sp.; m-q: habitus (dorsal, ventral, lateral, frontal, posterior); r: abdomen; s-t: tegmen; u: penis guide; v-w: penis and detail. Scale bars in mm. / a-l: Cyrea napoensis sp. n.; a-e: habitus (dorsal, ventral, lateral, frontal, posterior); f: abdomen; g-h: tegmen; i: guÍa del penis; j: parámero; k-i: penis y detalle. m-w: Dilatitibialis manaus sp. n.; m-q: habitus (dorsal, ventral, lateral, frontal, posterior); r: abdomen; s-t: tegmen; u: guÍa del penis; v-w: penis y detalle. Escalas en mm.