Calleida maxima, Casale, 2021

Casale, Achille, 2021, Biodiversity in tropical rainforests: Calleida Dejean, 1825 at the BIOLAT Biological Station, Rio Manu, Peru, with descriptions of seven new species (Coleoptera Carabidae, Lebiini). Part 1, ZooKeys 1044, pp. 479-510 : 479

Calleida maxima sp. nov. Figures 18 , 20 , 22

Type locality.

Peru, Madre de Dios, Pakitza, Rio Manu, BIOLAT Biological Station, Pakitza, 356 m a.s.l.

Type material.

Holotype, ♀: "PERU: MADRE DE DIOS, Pakitza, Zone 04 18 Sep 88 T.L. Erwin 11°55'48"S, 71°35'18"W ", "Insecticidal Fog Canopy/sheets 0413", "BIOLAT/COLE 000009208".

Specific epithet.

The specific name, Calleida maxima (superlative of the Latin adjective magnus, -a, - um, large in size), indicates the biggest size of this magnificent new species, one of the largest in size of the genus Calleida .

Diagnosis.

With the character states of the genus Calleida (in the wider sense: see Materials and methods), but from the closest Neotropical species markedly characterized by the peculiar combination of the following morphological features: larger in size (TL: mm 14.6), elongate; pronotum moderately transverse, slightly constricted in front; elytra deeply striate, not beaded at apex, with apical external angle acutely prominent, spine-like. Body and appendages uniformly brown blackish, contrasting in color with the metallic green elytra. Abdominal sternum VII with five or six setae on each side in the female (holotype). Female genitalia (ovipositor) as in Fig. 20 . Male unknown.

Description.

General features as in Fig. 18 . Large sized: L: 15.4 mm; TL: 14.6 mm.

Color: head black, with two reddish spots on frons; antennomere 1 dark reddish brown, following antennomeres brown blackish. Prothorax, pterothorax, legs, abdomen, basal margin and epipleura of elytra concolorous brown blackish; disc and lateral margins of elytra metallic green with golden reflection.

Luster and microsculpture: head and pronotum glossy, with highly effaced microsculpture, hardly visible as transverse mesh pattern; elytra glossy, with fine, hardly visible microlines in form of isodiametric mesh pattern.

Head: transverse, dorsally smooth, with moderate neck constriction; genae markedly convex, not contiguous with the posterior margin of eyes; eyes moderately large but very prominent; two supraorbital setae on each side.

Prothorax: moderately transverse (female) (ratio PL/PW:0.8); pronotum with lateral margins regularly arcuate, slightly constricted in front, very slightly sinuate anteriorly to the basal angles. Lateral reflection moderate, more evident anteriorly to the basal margin. Disc depressed, with very deep median furrow and very shallow transverse wrinkles. Basal foveae very elongate and deep. Anterior angles rounded, slightly prominent; basal angles obtuse. Basal margin beaded. One paramedial seta and one basolateral seta on each side present.

Elytra: moderately elongate (ratio EL/EW: 1.6), depressed; striae impressed, with very shallow punctuations; intervals moderately convex. Post-humeral sinuation shallow, pre-apical callosity evident, markedly prominent. Apex not beaded, deeply hollow, with both sutural and outer angle prominent, the outer spine-like. Interval 3 with two discal and one apical setiferous punctures; umbilicate series of 15 punctures along stria 8, interrupted in the middle.

Hind wings: fully developed.

Legs: long, slender. Metatarsomere 1 very long, deeply grooved dorsally; metatarsomeres 2 and 3 depressed, with shallow dorsal groove; metatarsomere 4 deeply bilobed, its lobes short, dilated and sub-truncate at apex. Tarsal claws denticulate, each with eight teeth on the inner side.

Abdominal sterna: sternum VII with five or six setae on each side in the female (holotype).

Female genitalia: (gonocoxites 1 and 2 of ovipositor) as in Fig. 20 .

Male unknown.

Geographical distribution and habitat.

Known so far only from the type locality. The only female individual was obtained by insecticidal fog canopy, in September.

Relationships.

Based on its general features, large size, structure of female genitalia, and the high number of setae on the 7th abdominal sternum, C. maxima sp. nov. is close to C. gigantea Casale, 2008 from southern Ecuador (Macas) and C. jeanneli Liebke, 1935 from Peru. From the latter, sympatric at the Rio Manu river (see Figs 19 , 23 ), it is markedly distinct for its larger size, much wider head, pronotum, and elytra, different color of elytra (which are concolorous metallic purple-red in C. jeanneli ), the apical outer angle of elytra acutely prominent (Figs 22 , 23 ), and the more elongate gonocoxite 2 of ovipositor (Figs 20 , 21 ). These taxa form a very homogeneous group of highly derived and rare, specialized species, apparently localized to a reduced area between southern Ecuador and Peru, on the Amazon side of the Andes ( Casale 2008).

Figures

Figures 18, 19. Calleida spp. from Rio Manu (Peru), habitus 18 Calleida maxima sp. nov., female holotype 19 C. jeanneli Liebke, specimen from Rio Mau (Peru).

Figures 20 - 23. Calleida spp. from Rio Manu (Peru), female genitalia (apical reproductive tract and gonocoxite 2) and apical margin of elytra 20 C. maxima sp. nov. 21 C. jeanneli Liebke 22 C. maxima sp. nov. 23 C. jeanneli Liebke. Scale bars: 0.25 mm (20, 21).