Macrolasia arcula Weise

Szawaryn, Karol & Tomaszewska, Wioletta, 2014, A contribution to Macrolasia Weise (Coleoptera: Coccinellidae: Epilachnini), Zootaxa 3780 (3), pp. 577-584 : 579-584

Macrolasia arcula Weise

( Figs. 1–36 )

Macrolasia arcula Weise, 1903: 231 . Type locality: Pondichery. Jadwiszczak & Węgrzynowicz 2003: 183; Poorani 2004: 49.

Redescription. Length 4.4–5.0 mm; TL/EW = 1.20–1.22; PL/PW = 0.39–0.40; EL/EW = 1.05–1.06; EW/PW = 1.52 (male), 1.60 (female).

Body ( Figs. 34, 35 ) oval, convex; dorsum pubescent. Pronotum yellow to orange with black triangular macula in median portion of disc; elytra yellow to orange, usually with five black maculae arranged in a 2–2–1 pattern. First anterior macula elongate, touching elytral suture then curved upward, but not reaching anterior elytral margin, second anterior macula round, located more laterally beneath humeral angle. Median pair of maculae weakly transverse, sometimes confluent. Posterior macula oval, sometimes absent.

Antenna ( Fig. 13 ) with antennomere 3 shorter than pedicel and shorter than antennomeres 4 and 5 together; antennomeres 4 and 5 slightly elongate, subequal in length; antennomeres 6–8 subquadrate, subequal in length. Maxillary palpomere 2 elongate, 1.5 times longer than palpomere 3; palpomere 3 transverse; terminal palpomere more than 2 times longer than palpomere 3, broadened apically ( Fig. 12 ).

Prosternal process 1.35 times wider than length of prosternum in front of coxae at narrowest point.

Mesoventral process ~1.1 times wider than mesocoxal diameter at the same position ( Fig. 5 ). Epipleuron ( Fig. 1 ) about 2.5 times broader than metanepisternum.

Male terminalia and genitalia as in Figs. 20–26 .

Female genitalia as in Figs. 30–33 .

Material examined. Lectotype (here designated), male ( India): “ Pondichery, Staud./ Macrolasia arcula / ex. coll. Weise/ Zool. Mus. Berlin/ SYNTYPUS Macrolasia arcula Weise, 1903 , labelled by MNHUB 2010” (MNB).

Other material. India: Shembajanm (1: MNHN; 1 female MIZ); Madras (1: MNHN); “Madras India / compare ou type / Macrolasia arcula Weise , ex. coll Sicard” (1: MNHN).

Figures

FIGURES 1 – 7. Macrolasia arcula (Weise); 1) habitus, ventral view; 2) mouthparts; 3) abdomen, female; 4) tarsal claws; 5) prosternal process, meso- and metaventrite; 6) apex of mid tibia; 7) hind leg.

FIGURES 8 – 16. Macrolasia arcula (Weise); 8) head, dorsal; 9) head, ventral; 10) mandible, dorsal; 11) mandible, ventral; 12) maxilla; 13) antenna; 14) labrum; 15) labium, ventral; 16) labium, dorsal.

FIGURES 17 – 33. Macrolasia arcula (Weise); 17) abdomen, male; 18) abdominal ventrite 6, male; 19) abdominal tergite VIII, male; 20) apex of penis, lateral; 21) apex of penis, ventral; 22) tegmen, inner; 23) tegmen, ventral; 24) penis, ventral; 25) genital segment of male, ventral; 26) genital segment of male, dorsal; 27) abdomen, female; 28) abdominal ventrite 6, female; 29) abdominal tergite VIII, female; 30) female genitalia, dorsal; 31) female genitalia, ventral; 32) bursa copulatrix, ventral; 33) spermatheca with accessory gland.

FIGURES 34 – 35. Macrolasia arcula (Weise); 34) female; 35) male, lectotype.