Calliopsis (Liopoeum) rigormortis Dumesh and Packer

Dumesh, Sheila & Packer, Laurence, 2011, The Calliopsis (Hymenoptera; Andrenidae; Panurginae) of Chile with the description of a new species, Zootaxa 2908, pp. 64-68 : 65-67

Calliopsis (Liopoeum) rigormortis Dumesh and Packer , new species.

( Figs. 1-12 )

Diagnosis. The female can be differentiated from those of other Chilean Calliopsis by the color of the metasomal terga, particularly the more apical terga which are entirely pale. The only other Chilean Calliopsis species with yellow markings ( Calliopsis trifasciata ) has the apical terga entirely dark with relatively narrow, medially interrupted bands on T2–T4. The male can be differentiated from other Chilean Calliopsis males by its largely dark lower face (supraclypeal area entirely black, clypeus mostly black) and presence of an interrupted yellow band on T1. Calliopsis trifasciata and C. hirsutula males have the lower face entirely yellow and T1 entirely black.

Description. Female. Figs. 1, 3–6 . Body length 7.6–7.8mm, forewing length 4.7 mm, head breadth 2.0 mm.

Coloration: Black, with yellow as follows: labrum apicomedially, mandible middle third (black basally, dark red apically), irregular marking on apical margin of clypeus, supraclypeal area apical 1/5, lower paraocular area and adjacent to inner margin of lower half of compound eye; mesocoxa ventrally, meso- and metatrochanters, protrochanter ventrally, profemur basally, meso- and meta femora (except for dark dorsal surface), pro- and meso tibiae (except dark posterior spot), metatibia ventrally, entire probasitarsus (tarsus apically darkened); terga mostly yellow with sublateral dark spots (decreasing apically), T1 dark with pale yellow lateral areas, T2–T4 pale yellow, medially orange, apically dark with dark areas decreasing on more apical terga, T5 entirely pale yellow; sterna with dark basomedial markings.

Surface sculpture: Body mostly dull due to imbricate microsculpture, face above antennal sockets and mesosomal dorsum more coarsely sculptured, granulose; following areas weakly imbricate, shiny: labrum, clypeus, supraclypeal area below, lower paraocular area, meso- and metapleuron, and metasomal sterna; labrum with weak transverse striae basally and metapostnotum with short irregular basal striae and a raised midline; clypeal punctures coarse and irregularly spaced on disc, fine and dense laterally and on supraclypeal area below (i<0.5d), lower paraocular area sparsely punctate (i≥2d), gena with fine punctures (i=1–3d); frons, mesoscutum, mesoscutellum, and metanotum with sparse punctures (i≥2d), punctures sparser on disc of mesoscutum, fine and dense on mesoscutellum posteriorly, mesopleuron with denser punctures anteriorly and ventrally (i≤d), metapleuron punctures sparse and minute; metasomal terga imbricate with sparse punctures (i=3–4d), apical impressed areas impunctate.

Pubescence: Hairs white, especially long (3–4MOD) on frons, vertex, gena, posterior margins of mesoscutellum and metanotum, lateral surface of propodeum, mesopleuron, base of T1 and apex of T5. Clypeus laterally and paraocular area with laterally directed hairs. Prepygidial fimbria pale yellow, short and densely branched.

Structure: Head: broader than long (l=0.75b). Labrum medially impressed; lower paraocular area swollen; clypeus with pronounced impressed midline, disc flat, lateral areas flat, forming an angle of 60° to disc; supraclypeal area with apical yellow area raised, flat above; face depressed mesad of compound eyes, frontal line strongly impressed from median ocellus to level with upper tangent of antennal sockets; inner margin of compound eyes subparallel. Mesosoma : medial line of mesoscutum weakly impressed; mesoscutellum convex with broadly impressed midline; metapostnotum about as long as mesoscutellum; mesofemur 0.75X as broad as long; mesotibial spur nearly as long as mesobasitarsus, with 3–4 long teeth; mesobasitarsus 2X as long as broad; tarsal claw lacking tooth. Metasoma: apical impressed areas of T1–T3 ~0.25X length of terga, ~0.33 length of T4.

Male. Figs. 2, 7–12 . Body length 5.5–5.7 mm, forewing length 7.6 mm, head breadth 1.8 mm.

As female except as follows:

Coloration: Black, with yellow as follows: clypeus with lateral and apicomedial spots, sometimes forming apical band; supraclypeal area sometimes with medial oval spot; pronotal collar (with medial interruption), all tibiae except black ventral surface, all basitarsi (meso- and metatarsomeres apically darkened); terga with all discs bearing pale bands, medially interrupted on T1, sometimes interrupted on T3–T5.

Surface sculpture: Mesosoma shiny ventrally; punctures on lower paraocular area extremely sparse (i≥4d); mesopleuron sparsely punctate posteriorly and ventrally (i≥2d); metasoma more strongly imbricate with sparser punctures (i>4d), T5–T6 very sparsely punctate.

Pubescence: White long hairs less dense; mesosomal venter with sparse short hairs, metatarsus very sparsely pubescent, longest hairs as long as or only slightly longer than metatarsus; S5, S6 and S8 with dense long hairs apically.

Structure: Head: frontal line not as strongly impressed; compound eyes convergent below (UOD:LOD 1.2mm:1.0mm); scape about 2X as long as apical breadth, most flagellomeres longer than broad, F2–F3 shortest. Mesosoma : meso- and metatibial spurs short, ~0.33X as long as basitarsus, microserrate; mesobasitarsus parallelsided and slender, 4X as long as broad; total length of tarsomeres 1–3>1.5X length of tarsomere 4, b:l for tarsomeres 1–3: 0.8, 1.5, and 1.75, respectively; tarsal claw with subapical tooth. Metasoma: T7 apically rounded and medially impressed; S5 with apical margin produced medially ( Fig. 8 ); S6 with basal margin concave, apex produced as two acute processes ( Fig. 8 ); S7 with dorsally oriented lateral lobe sclerotised basally, membranous apically, sclerotised portion with posterior acute process ( Fig. 9 ); S8 with basal margin only weakly concave ( Fig. 10 ); genital capsule with gonocoxite rounded dorsomedially, penis valve pointed at apex with sparse hairs on inner surface ( Fig. 11 ).

Notes. Color variation has been observed in the female metasoma, where the dark tergal bands range from complete ( Fig. 3 ) to only lateral dark marks ( Fig. 4 ). T1 coloration ranges from almost entirely dark ( Fig. 3 ) to mostly orange ( Fig. 4 ). Figure 1 shows the intermediate state of the holotype.

Material examined. Holotype female and paratype female: CHILE: Region VII, W of Laguna del Maule, S35.96901 W70.56940 1982m L. Packer; allotype male with same locality except: S35.99909 W70.42668 2205m; two paratype females and four paratype males with same locality except: S35.99711 W70.56071 2165m 3.i.2009; paratype male with same locality except: S36.00163 W70.27328 2227m 5.i.2009. Material at PCYU except one male and one female paratype at PUCV. Floral host. All specimens were collected from, or flying over, an unidentified species of Adesmia (Fabaceae) .

Etymology. The species is named because of its death posture, with the head oriented upwards such that the face is horizontal and on the same plane as the dorsal surface of the mesoscutum ( Fig. 6 ).

Figures

FIGURES 1 – 12. Calliopsis rigormortis Dumesh and Packer, new species, 1. Female (holotype), oblique view, 2. Male, oblique view, 3. Female (paratype), metasoma (for color variation), 4. Female (paratype), metasoma (for color variation), 5. Female (paratype) head, dorsofrontal view, 6. Female (paratype) head, lateral view, 7. Male head, dorsofrontal view, 8. Male S 5 and S 6, 9. Male S 7, 10. Male S 8, 11. Male genital capsule, 12. Male metatarsus, lateral view. (Scale bar = 1.0 mm)