Cyrea lydia Canepari and Gordon, 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 : 52-53

38. Cyrea lydia Canepari and Gordon , new species

Description. Male. Length 2.5 mm, width 2.0 mm; body oval, convex. Dorsal surface with head and pronotum slightly alutaceous, shiny, elytron smooth, shiny. Color yellow except head with clypeus brown and frons between eyes irregularly brown; pronotum with large dark brown basomedian macula extended 7/8 distance to anterior pronotal margin, macula with anterior border projected medially, apical margin of macula entire, truncate; elytron dark brown with 2 yellow spots, spot at middle of elytron irregularly extended from lateral margin nearly to sutural margin, apical spot transversely rectangular, anterior margin of spot slightly emarginate ( Fig. 209 ); ventral surface with head, prosternum, meso- and metaventrite pale brown; abdomen yellow. Head punctures small, separated by less than a diameter, each puncture about as large as an eye facet; pronotal punctures larger than head punctures, separated by less than to about a diameter, elytral punctures as large as on pronotum, separated by less than to twice a diameter; metaventral punctures larger than on elytron, separated by a diameter or less medially, larger and separated by less than a diameter in lateral 1/3. Clypeus weakly 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 weakly curved, basal margin without trace of bordering line medially. Epipleuron wide, shallowly grooved, not descending externally, deeply emarginate for reception of femoral apices. Protibia with narrow oblique angle, outer margin slightly arcuate, smooth, sponda slightly extended beyond angle. Carinae on prosternal process narrowly separated apically, convergent, joined at basal 1/3 of prosternum, connected to base by single carina. Metaventrite without setal tuft. Basal abdominal ventrite without setal tuft. Abdomen with postcoxal line on basal abdominal ventrite rounded throughout, extended forward at apex, ventrites 1-2 with dense, long pubescence and coarse, sparse punctures; ventrites 4-6 with long, dense pubescence throughout, punctures fine, dense; 5th ventrite depressed in median 1/3, apex shallowly emarginate; 6th ventrite medially depressed, apex weakly emarginate, lateral angle abruptly rounded. Apical tergite finely, densely punctured, apex emarginate. Genitalia with basal lobe slightly longer than paramere, asymmetrical, sides convergent from base to rounded apex; paramere Pem, widened from narrow base to extremely wide apex, upper margin straight, apically acute, lower margin widely curved, apex abruptly rounded, entire apex broadly emarginate medially ( Fig. 210, 211 ); sipho strongly curved in basal 1/2, without visible alae, basal capsule with inner arm long, slender, apex truncate, outer arm about as wide as and slightly longer than inner arm, with accessory piece, basal border broadly, shallowly emarginate ( Fig. 212, 213 ).

Female. Similar to male except head reddish brown, basomedian pronotal macula extended to anterior pronotal border medially. Genitalia with spermathecal capsule short, wide, basal 1/3 slightly widened, apex of cornu rounded; bursal cap with two weakly sclerotized arms, apical strut long, nearly as long as an arm, slender ( Fig. 214 ).

Variation. Length 2.4 to 2.9 mm, width 2.0 to 2.3 mm. Median spot on elytron may be divided medially, giving each elytron 3 yellow spots, ventral surface varies from meso- and metaventrite pale brown to dark brown.

Type material. Holotype male; Brasilien, Nova Teutonia , 27 o 11’B 52 o 23’L,. 4.4.1931, Fritz Plaumann. ( DZUP) . Paratypes 13, 6, same data as holotype except dates II.1960, IV.1960, IX.1962, X.1962 ; 7, Brasil, SC, Nova Teutonia , X.1965, I.1966, II.1966, IV.1966, V.1966, IX.1966, Fritz Plaumann col. ( DZUP) .

Remarks. The typical color form of Cyrea lydia is distinctive within the genus, but if the median spot is broken into two parts it is slightly similar to some other species. However, regardless of color form, this species is unique within the hexastigma group.

Figures

Figures 204-220. Cyrea spp. 204-208) Cyrea seval. 204) Habitus. 205) Phallobase ventral. 206) Phallobase lateral. 207) Sipho. 208) Enlarged siphonal apex. 209-214) Cyrea lydia. 209) Habitus. 210) Phallobase ventral. 211) Phallobase lateral. 212) Sipho. 213) Enlarged siphonal apex. 214) Female genitalia. 215-220) Cyrea yvonne. 215) Habitus. 216) Phallobase ventral. 217) Phallobase lateral. 218) Sipho. 219) Enlarged siphonal apex. 220) Female genital plate and spermathecal capsule.