Cyrea arrowi (Brèthes) Canepari & Gordon & Hanley, 2016

Canepari, Claudio, Gordon, Robert D. & Hanley, Guy A., 2016, South American Coccinellidae (Coleoptera), Part XVII: Systematic revision of the genera Cyrea Gordon and Canepari and Tiphysa Mulsant (Hyperaspidinae: Brachiacanthini), Insecta Mundi 2016 (486), pp. 1-180 : 120-121

108. Cyrea arrowi (Brèthes) , new combination

Hyperaspis arrowi Brèthes, 1925a: 13 ; Korschefsky 1931:184; Blackwelder 1945:446.

Hyperaspis arrowi var. darwini Brèthes, 1925a: 13 .

Hyperaspis arrowi ab. darwini: Korschefsky 1931:184 ; Blackwelder 1945:446. NEW SYNONYM.

Description. Male. Length 2.4 mm, width 1.6 mm; body elongate, oval, slightly flattened. Dorsal surface with head alutaceous, dull, pronotum slightly alutaceous, weakly shiny, elytron smooth, shiny. Color yellow except pronotum with large, wide, black basomedian macula extended about 5/6 distance to anterior pronotal margin, apical border slightly arcuate, lateral 1/5 of pronotum yellow; elytron black with 2 yellow vittae, vitta on lateral margin narrow, sinuate, widened at apical declivity, extended from humeral angle onto apical declivity, median vitta wide at base, narrowed to wide apex on apical declivity ( Fig. 602 ); ventral surface with head, prosternum, and metaventrite black; abdomen dark brown except lateral and apical 1/3 slightly paler brown. Head punctures fine, separated by a diameter or less, each puncture about as large as 2 eye facets; pronotal punctures larger than head punctures, separated by less than to about twice a diameter, elytral punctures larger than on pronotum, separated by less than to twice a diameter; metaventral punctures larger than on elytron medially, separated by a diameter or less, becoming larger and separated by less than a diameter toward lateral margin. Clypeus emarginate apically, lateral angle rounded, surface with sparse, long pubescence. Eye canthus about 6 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, basal and anterior angles abrupt, lateral margin curved, basal margin without trace of bordering line medially. Epipleuron narrow, nearly flat, slightly descending externally, deeply emarginate for reception of femoral apices. Protibia with wide oblique angle, outer margin arcuate, basal tooth absent, sponda extended beyond protibial margin. Carinae on prosternal process widely separated at apex, convergent, joined at basal 1/3 of prosternum, connected to base with single carina. Metaventrite without setal tuft. Basal abdominal ventrite without setal tuft. Abdomen with postcoxal line on basal abdominal ventrite abruptly rounded throughout, extended forward at apex. Ventrites 1-3 with dense, long pubescence and coarse, dense punctures; ventrites 4-6 pubescent throughout, punctures fine, dense; 5th ventrite slightly depressed in median 1/3, apex shallowly emarginate; 6th ventrite medially depressed, apex shallowly emarginate. Apical tergite finely, densely punctured, apex emarginate. Genitalia with basal lobe about 5/6 as long as paramere, slender, symmetrical, sides convergent from base to abruptly rounded apex; paramere Psc, slender, evenly curved, nearly same width from base to rounded apex ( Fig. 603, 604 ); sipho robust, strongly curved in basal 2/3, with visible alae at apical 1/8, basal capsule with inner arm short, wide, apex bifid, outer arm curved, about same width and length as inner arm, with small accessory piece, basal border widely, shallowly emarginate ( Fig. 605, 606 ).

Female. Similar to male except head black, pronotum entirely black except narrow lateral margin yellow. Genitalia with spermathecal capsule long, slender, basal 1/3 wide, slightly widened from basal 1/3 to acute apex of cornu; bursal cap small, oval with 3 heavily sclerotized arms, apical strut short, robust ( Fig. 607 ).

Variation. Length 2.3 to 3.0 mm., width 1.6 to 2.2 mm. Male pronotum sometimes with narrow, black apex, elytron with vittae widely separated at apex ( arrowi ) or with lateral vitta extended nearly to suture at apex, narrowly separated from median vitta ( darwini ).

Type locality. Of C. arrowi , not stated; of C. darwini , “ Maldonado.”

Type depository. Of C. arrowi and C. darwini, BMNH.

Geographical distribution. Argentina, Uruguay.

Specimens examined. 35. Argentina. Bella Vista, Corrientes ; Buenos Aires ; Buenos Aires, La Plata ; Buenos Aires, San Fernando ; Entre Rios, Concordia ; Prov. Córdoba , dpto. Calamuchita, Sauce ; Garay , Santa Fe ; Tigre . Uruguay. Montevideo to Salto & Concordia. ( BMNH) ( JEBC) ( USNM) .

Remarks. Cyrea arrowi has distinctively patterned elytra and an elongate body form that is similar to that of many species of Hyperaspis .

Brèthes (1925a) described C. darwini as a variety of C. arrowi , which it certainly is. Here the two names are treated as synonyms.

Figures

Figures 590-607. Cyrea spp. 590-594) Cyrea lillie. 590) Habitus. 591) Phallobase ventral. 592) Phallobase lateral. 593) Sipho. 594) Enlarged siphonal apex. 595-601) Cyrea languida. 595) Habitus. 596) Protibia. 597) Phallobase ventral. 598) Phallobase lateral. 599) Sipho. 600) Enlarged siphonal apex. 601) Female genitalia. 602-607) Cyrea arrowi. 602) Habitus. 603) Phallobase ventral. 604) Phallobase lateral. 605) Sipho. 606) Enlarged siphonal apex. 607) Female genitalia.