Calagasma eclipsa Lupoli, sp. nov.
Creators: name: Lupoli, Roland
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Calagasma
Calagasma eclipsa

description: Calagasma eclipsa Lupoli sp. nov.
(Figs. 1 H, I, J, 4A, B, C)
Etymology. The overall dorsal color of this insect resembles a solar eclipse by the moon. On the other hand this etymology refers to the French verb « éclipser » which means overshadowing, recalling that, for over a century, the general collection of MNHN overshadowed this small species from the sight of specialists. Calagasma means in Latin «beautiful jewel» which is not in contradiction with the beauty of C. eclipsa.
Material examined (n: 1): Holotype ♂ (Figs. 1 H, I, J). FRENCH GUIANA. Green original label: "Muséum Paris—Guyane Française—Dr. Bongrand 1913". Below, red label: "HOLOTYPE— Calagasma eclipsa —Roland Lupoli, 2016". Pygophore removed and glued on a cardboard mount pinned below the specimen. Deposited at MNHN, Paris France. ♀ unknown.
Measurements. Total length: 6.7 mm; pronotum width (at humeral angles): 4.9 mm; abdomen width: 5.4 mm; head length: 0.9 mm; head width across the eyes: 1.7 mm; pronotum length: 1.5 mm. All antennomers are missing.
Diagnosis. Insect almost circular, overall dorsal body color brown completely surrounded by a large impunctate shiny orange margin (Fig. 1 H). Head entirely shiny orange and impunctate including clypeus and vertex. Eyes brown. Clypeus shorter than mandibular plates. Mandibular plates parallel along lateral margins. Anterolateral margins of the pronotum shiny orange, impunctate and slightly concave. Callus raised upward (Fig. 1 J). Elsewhere, pronotum shiny brown with uniformly distributed deep concolorous dense punctation. Scutellum flat, completely shiny brown with deep concolorous dense punctation uniformly distributed, similarly to the shiny brown part of the pronotum. Corium mostly matt greenish brown, appearing similar to leather, with concolorous shallow punctation distributed in lines parallel to the wing veins. Apical half of exocorium shiny orange and impunctate. Anterolateral shiny orange border of exocorium strongly elevated (Fig. 1 J). Posterior margin of corium not sigmoid but almost linear, the costal angle forming a rounded corner. Connexivum shiny orange, impunctate, broadly exposed, as broadly as the exocorium. Venter brownish yellow (Fig. 1 I) as the legs (only the posterior right leg and right metafemur remain). Tibiae cylindrical.
Pygophore thick, sclerotized and dark brown (Fig. 4 A, B, C). Parameres and proctiger dark brown. Dorsal rim U-shaped leaving apparent, in the dorsal view, proctiger and parameres. Ventral rim thick, strong and almost straight in the ventral view. Posterolateral angles of pygophore very thick, ear-shaped, sclerotized, with short setae. Parameres flat and curved, postero-ventrally directed, positioned on their edge and parallel to each other. Ventral apices of the parameres reaching ventral rim and come to rest on it, apices shaped like small hands wearing tiny mittens. Proctiger cylindrical. Brown bilobed shape process located just behind the proctiger.
Comments. Although the coloring of C. margarita and C. eclipsa are completely different, several common points allow linking them to the same genus. First, the general shape of the body: both species are small with large abdomen and an average length of 8.4 mm for C. margarita and 6.7 mm for C. eclipsa. The shape of their bodies is very rounded which results in a ratio of length versus width of the body of 1.25 and 1.24 for C. margarita and C.
eclipsa, respectively, and 1.41 and 1.39 for E. histrio and E. rolstoni, respectively. C. margarita and C. eclipsa share the cylindrical tibiae that Bergroth mentioned. They also share deep concolorous punctation on part of the scutellum, a small head with parallel mandibular plates, a slightly concave anterolateral border of the pronotum, and the border of exocorium raised upward like pronotum callus. The structure of the corium of these two species is very similar. They share the same matt greenish brown color, leather appearance, with concolorous shallow punctations distributed in lines parallel to the wing veins.
Then, the presence of triangular or cylindrical tibiae seems to be a good character to separate the genus Epipedus from Calagasma, however, the scutellum structure and sculpture of C. margarita can no longer be used as a diagnostic character for the genus Calagasma since it is flat in C. eclipsa. Calagasma and Epipedus colors are likely aposematic. The pattern on C. eclipsa looks like some Coccinellidae or Cassidinae species from tropical America.
Distribution. FRENCH GUIANA, probably in the area of St-Jean du Maroni where Dr. Pierre-Charles Bongrand (1882–1928) spent more than a year between 9.I.1912 and 13.IV.1913.
description: Published as part of Lupoli, Roland, 2016, Diagnosis of Calagasma Bergroth and Epipedus Spinola with description of Calagasma eclipsa sp. nov. and Epipedus rolstoni sp. nov. (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Carpocorini), pp. 330-338 in Zootaxa 4170 (2) on pages 336-338, DOI: 10.11646/zootaxa.4170.2.6, http://zenodo.org/record/260743