Cisanthrena perforata Ramos & Melo, 2021

Ramos, Kelli S. & Melo, Gabriel A. R., 2021, Three new genera of Protandrenini bees from South America (Hymenoptera, Apidae, Andreninae), Revista Brasileira de Entomologia (e 20210096) 65 (4), pp. 1-10 : 7-9

Cisanthrena perforata Ramos & Melo , new species

( Figs. 4-5 )

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Diagnosis and comments. In addition to the generic characters, this species is easily recognized by the integument largely smooth and shiny between punctures, hairs on fore tibiae of female strongly curved apically ( Fig. 4A ), fovea of female very narrow ( Fig. 4A ), and pigidial plate of male with midapical notch ( Fig. 5A ). In addition, the head of the male exhibit yellow color on mandible, anterior portion of scape, clypeus, and lower paraocular area ( Fig. 4C ).

Description. Holotype female. Approximate body length: 6.15 mm; maximum head width: 1.6 mm; intertegular distance: 1.2 mm; forewing length: 5.0 mm; T2 maximum width: 1.8 mm. Coloration. Integument mostly dark brown; posterior portion of antennal flagellum, distal portion of mandible, pterostigma, legs, and tibial spurs brownish; basal spot of fore and mid tibia yellowish. Tegula and marginal zone of the metasomal terga semi-translucent brownish.Pubescence. Predominantly whitish with sparse and very shorty hairs; fore tibia and tarsus with light brown hairs strongly curved apically; prepygidial and pygidial fimbriae brownish. Labrum with very sparse and simple setae, except for glabrous labral plate; long on lateral portions of clypeus (ca. 1.5x as long as ocellar diameter); eyes glabrous; distal half of clypeus with long hairs (ca. 1.5x as long as ocellar diameter); disc of clypeus, supraclypeal area, paraocular area, frons, vertex, gena, mesoscutum, and scutellum with sparse tiny hairs (ca. 1x as long as puncture diameter). Pronotal collar with very short decumbent hairs; posterior margin of pronotal lobe with dense plumose short hairs; lateral portions of metanotum with long erect finely branched hairs; metepisternum with tiny decumbent hairs; dorsolateral portion of mesepisternum with erect finely branched long hairs (ca. 2x as long as puncture diameter), becoming gradually denser and long on lower half (ca. 1.5x as long as ocellar diameter); hairs straight apically on ventral portion of mesepisternum; fore coxa with very long simple hairs (ca. 3.5x as long as ocellar diameter); fore femur, tibia and tarsus with thick hairs, whose apex is strongly curved; basal area of metapostnotum glabrous, remainder with spare tiny hairs; propodeum with tiny hairs and lateral corners with dense long finely branched hairs (ca. 1.2x as long as puncture diameter); hind tibial scopa loose, setae long and simple, those on anterior surface as long as maximum width of tibia ( Fig. 4B ); basitibial plate with few coarse setae on basal half and glabrous on distal half; disc of T1–T3 with sparse tiny setae; T3 with few longer finely branched erect hairs on lateral portions; T4 with dense and long simple hairs (ca. 1x as long as ocellar diameter) on disc and fringe of long hairs on distal margin (as long as marginal zone length); fimbria on T5–T6 with dense finely branched hairs; marginal zone glabrous; S1–S5 with long erect branched setae on distal half (ca. 3x as long as ocellar diameter).Integumental surface. Predominantly with dense coarse deep punctation, mostly smooth and shiny between punctures. Labral plate smooth and shiny without striae; facial fovea finely reticulated, dull; punctures dense (<1.0 pd) on clypeus, supraclypeal area, frons, lower paraocular area, gena laterally, and vertex; tegula smooth and shiny; upper paraocular area and mesepisternum with contiguous punctures (<0.5 pd); ventral portion of gena without punctures;mesoscutum with very sparse punctures (> 2 pd); scutellum and metanotum densely punctate (<1.0 pd); metepisternum reticulated; basal portion of metapostnotum finely striated, remainder unpunctured; lateral corners of propodeum reticulated with shallow contiguous punctures; hind leg strongly reticulated; disc of T1 and T2 closely punctate (1–2 pd); punctures on disc of T3–T5 finer and shallow; marginal zone of T1–T4 smooth; metasomal sterna reticulated among contiguous fine shallow punctures; pygidial plate weakly reticulated. Structure. Head approximately 1.1x broader than long (1.6:1.4); first labial palpomere shorter than the three distal palpomeres combined; labral plate 1.3x longer than broad (0.23:0.29), distal margin straight; compound eyes 2x as long as broad (1.04:0.5), converging below (upper to lower interorbital distance: 1.02:0.83); clypeus 1.4x broader than long (0.6:0.43); subantennal sutures subparallel; F1 longer than F2; frontal line grooved; facial fovea deep and very narrow, 7x longer than broad (0.29:0.04); gena, in lateral view, shorter than compound eyes; parapsidal line impressed and linear, as long as tegula length; median mesoscutal line deeply impressed; basal area of metapostnotum depressed, shorter than scutellum ( Fig. 4D ); first submarginal cell slightly longer than second; mid tibial spur finely serrate, about 0.8x as long as basitarsus (0.4:0.5); tarsal claws bifid, teeth of similar sizes; hind tibial spurs straight apically, subequal in length; anterior portion of T1 slightly declivous ( Fig. 4B ); disc of T2–T4 almost flat; T1 and T2 with lateral line; lateral fovea of T2 inconspicuous; marginal zone of metasomal terga strongly depressed in comparison to disc; pygidial plate V-shaped, margin depressed and slightly rounded at apex.

Paratype male. Paratype male. Approximate body length: 5.03 mm; maximum head width: 1.4 mm; intertegular distance: 1.0 mm; forewing length: 4.1 mm; maximum T2 width: 1.1 mm. Similar to female in color except for most of mandible, anterior portion of scape, most of clypeus, lower paraocular area, pronotal lobe, fore and mid tibiae, distal portion of hind femur, and tarsi yellow. Condylar groove of mandible with fringe of long simple hairs (ca. 1.2x as long as ocellar diameter) ( Fig. 4C ); fore tibia and tarsus with whitish hairs straight apically; fore coxa with sparse short hairs (ca. 1.2x as long as ocellar diameter); hind tibia with very sparse short hairs (ca. 1.2x as long as ocellar diameter); basitibial plate glabrous; T5 and T6 with sparse pubescence, hairs longer than length of marginal zone; S1–S5 with dense decumbent plumose hairs on distal half (ca. 2x as long as ocellar diameter). Mesoscutum with dense punctures (<1 pd); T1-T4 closely punctate (<0.5 pd); hind leg smooth and shiny; metasomal sterna smooth and shiny between fine shallow punctures; pygidial plate smooth and shiny ( Fig. 5A ). Structure. Head 1.2x broader than long (1.4:1.15); first labial palpomere shorter than the three distal palpomeres combined ( Fig.4C ); labral plate as long as broad (0.18:0.29); compound eyes 1.8x as long as broad (0.88:0.5), converging below (upper to lower interorbital distance: 0.9:0.61); clypeus 1.4x broader than long (0.6:0.43); frontal line indicated as evident sulcus; facial fovea deep and oval, 1.5x longer than broad (0.09:0.06); gena, in lateral view, shorter than compound eyes; mid tibial spur finely serrate, about 0.7x as long as basitarsus (0.26:0.38); tarsal claws bifid; hind tibial spurs straight apically, outer spur shorter than inner one.

Distribution. This species is known only from the forested areas in the oriental portion of the Andes in Peru.

Type material. Holotype female ( AMNH) “ PERU, Quincemil ,\ on branch R.Manu \ Madre de Dios Prov. \ X-16-31-1962 ” “ L.E.Pena \ Collector” . Paratype. Peru, Madre de Dios: 1 male ( BMNH) “Forested eastern\ foothills of the\ Andes, 2000ft. ” “ PERU: Tingo Maria\ 1km. E. of town.\ Malaise trap, dense\ woodland, 15.viii.1971.” “ P.S. & H.L. Broomfield ” .

Etymology. The epithet refers to the deeply punctate integumental surface of the body in this species, from the Latin “perforatus”, meaning pierced, perforated.

Figures

Figure 4 Cisanthrena perforata Ramos & Melo new species.A, head of female (holotype) in frontal view.B, female (holotype) in lateral view. C, head of male (paratype) in frontal view. D, male (paratype) in dorsal view. Scale bar: 1.0 mm.

Figure 5 Cisanthrena perforata Ramos & Melo new species, male paratype. A, apex of metasoma, showing the T7, in postero-dorsal view. B, S6 in ventral view. C, S7 in ventral view. D, S8 in ventral view. E, genitalia in lateral view. F, genitalia in ventral view.Scale bar 0.2 mm.