Dilatitibialis fallax Canepari and Gordon, 2013

Canepari, Claudio, Gordon, Robert D. & Hanley, Guy A., 2013, South American Coccinellidae (Coleoptera), Part XV: systematic revision of Dilatitibialis Duverger (Coccidulinae; Hyperaspidini), Insecta Mundi 2013 (312), pp. 1-91 : 47-48

38. Dilatitibialis fallax Canepari and Gordon , new species

Description. Male holotype. Length 3.5 mm, width 2.8 mm; body oval, convex. Color yellow except pronotum with small, irregular, basomedian black macula deeply emarginate apically; elytron black with 5 large yellow spots arranged as in ( Fig. 205 ); ventral surface with meso-, metaventrite reddish brown, abdomen brownish yellow. Head punctures small, separated by less than a diameter, each puncture as large as 3 eye facets; pronotal punctures larger than on head, separated by less than to twice a diameter; elytral punctures slightly larger than those on pronotum, separated by 1 to 3 times a diameter; metaventral punctures 3 or 4 times as large as those on elytron, separated by less than a diameter medially, becoming larger and contiguous toward lateral margin. Clypeus emarginate apically, lateral angle abruptly rounded, surface with dense, long pubescence. Eye canthus about 6 eye facets long, angled forward, apically rounded, yellow. Pronotum narrowed from base to apex, sides feebly rounded, basal and anterior angles rounded, basal margin without bordering line. Epipleuron narrow, grooved, descending externally, deeply emarginate for reception of femoral apices. Protibia widely flanged, flange evenly arcuate, wider than remain- der of protibia, outer margin smooth ( Fig. 206 ); sponda deep, slightly wider than flange. Carinae on prosternal process nearly absent, consisting of single short carina from apex to basal 1/5. Metaventrite without median setal tuft. Abdomen with primary pores laterally between ventrites 4-5 large, occupying apical 1/3 of ventrite 4, forming distinct depression on ventrite 5; postcoxal line on basal abdominal ventrite straight in basal 1/3, extended to apical margin of ventrite at middle, rounded in apical 2/3, extended forward; ventrites 1-4 with sparse, short pubescence and dense, coarse punctures, 5th ventrite not depressed medially, depressed in apical 1/2, apical margin broadly, deeply emarginate, surface densely, coarsely punctate; 6th ventrite short, narrow, depressed in apical 1/2, apical margin broadly, deeply, bisinuately emarginate, lateral angle of emargination projecting, abruptly rounded, surface densely punctured. Apical tergite densely punctured, with shallow median groove. Genitalia with basal lobe about as long as paramere, asymmetrical, slender, apex evenly rounded; paramere Psc, wide ( Fig. 207, 208 ); sipho slender, strongly curved in basal 1/2, basal capsule lightly sclerotized, inner arm long, slender, curved, outer arm as long as inner arm, wide, with small accessory piece, basal border broadly emarginate ( Fig. 209, 210 ).

Female: Similar to male except genitalia with spermathecal capsule abruptly curved in apical 1/2; bursal cap with 3 arms, median arm short, apical strut long, slender, apically spatulate in lateral view ( Fig. 211 ).

Variation: Length 3.0 to 3.5 mm, width 2.6 to 2.8 mm.

Type material. Holotype male.; Brazil, Santar. ( Santarem ), Type (crossed out), jucunda (on reverse of “type” label. ( UMZC). Paratypes; 6, 1, Brasil, Hyperaspis jucunda Muls. ; 5, Cay. (Cayenne, French Guiana) ( UMZC).

Remarks. This is one of several Dilatitibialis species having a dorsal color pattern consisting of yellow spots on a black background. The elytral spots are larger than normal, and the pronotum is mostly yellow, characters that help to separate it from other Dilatitibialis species , but male genitalia must be examined to ensure a correct identification. Five paratypes labeled “Cay.” ( French Guiana) are present in the Crotch collection under the name “jucunda.”

Etymology. The specific name is from the Latin falsus, meaning deceive, referring to the similar color patterns of this species and D. jucunda .

Figures

Figures 200-217. 200-204) Dilatitibialis jucunda. 200) Habitus. 201) Phallobase lateral. 202) Phallobase ventral. 203) Sipho. 204) Enlarged siphonal apex. 205-211) Dilatitibialis fallax. 205) Habitus. 206) protibia. 207) Phallobase ventral. 208) Phallobase lateral. 209) Enlarged siphonal apex. 210) Sipho. 211) Female genitalia. 212-217) Dilatitibialis wendy. 212) Habitus. 213) Phallobase ventral. 214) Phallobase lateral. 215) Enlarged siphonal apex. 216) Sipho. 217) Female genitalia.