Campsurus cotaxe,

Molineri, Carlos & Salles, Frederico F., 2017, Review of selected species of Campsurus Eaton 1868 (Ephemeroptera: Polymitarcyidae), with description of eleven new species and a key to male imagos of the genus, Zootaxa 4300 (3), pp. 301-354: 340

publication ID

https://doi.org/10.11646/zootaxa.4300.3.1

publication LSID

lsid:zoobank.org:pub:554D8B46-D396-42FA-9604-6DA9DFA3EFE7

persistent identifier

http://treatment.plazi.org/id/0386A43A-EF50-A211-8B85-FE88FB33F807

treatment provided by

Plazi

scientific name

Campsurus cotaxe
status

sp. nov.

Campsurus cotaxe  sp. nov.

( Figs. 140–144View FIGURES 138 – 145, 176View FIGURES 176 – 177)

Campsurus  sp. nov. Angeli et al. 2015: 202.

Type material. Holotype ♂ i from BRAZIL, Espírito Santo, Nova Venécia, Rio Cotaxé  , Patrimonio do Bis , S 18° 33' 28" / W 40° 20' 7", 16–17.iv.2012, pennsylvania light trap, KB Angeli col. ( CZNC). Paratypes: 45 ♂ i same data as holotype (5 ♂ i IBN, slide IBN730CM, remaining CZNC)GoogleMaps  ; 5 ♀ i from Espírito Santo, Sao Mateus, Rio Cotaxé  , S 18° 37' 41" / W 40° 6' 42", 26–27.vii.2012, pennsylvania light trap, KB Angeli col. (IBN, slide IBN731CM).GoogleMaps 

Male imago. Length (mm): body, 7.8–8.5; foreleg, 3.1–3.3; fore wing, 6.9–8.0; hind wing, 3.5–3.6; cerci, 21.0–22.5. General coloration whitish yellow with grayish brown marks ( Fig. 176View FIGURES 176 – 177). Head whitish, shaded with black among ocelli; occiput pale, not shaded. Antenna whitish, shaded with gray. Thorax ( Fig. 176View FIGURES 176 – 177). Pronotum translucent, shaded with grayish brown anterolaterally. Mesonotum yellowish white, shaded with grayish brown dorsally, mainly on carinae, PSP and area between PSP. Metanotum yellowish white, shaded with grayish brown on submedian mark. Pleura and sterna shaded more widely with grayish brown, darker on carinae and mesofurcasternum. Legs yellowish white, shaded with gray. Wings. Membrane translucent with light brownish veins, darker near base and fore margin. Abdomen whitish translucent, shaded with grayish brown dorsally, darker toward rear segments ( Fig. 176View FIGURES 176 – 177); medial area of all nota pale, not strongly shaded. Sterna shaded almost completely with grayish brown. Genitalia translucent yellowish white, hind margin of sternum IX straight ( Fig. 140View FIGURES 138 – 145); pedestal bases distinctly separated in middle, pedestal with conical parastylus (p in Fig. 140, 141View FIGURES 138 – 145), subequal in length to main body of pedestal, inner corner also projected but slightly (ic in Fig. 140View FIGURES 138 – 145); penes base well developed (bp in Fig. 140View FIGURES 138 – 145); main lobe of penes yellowish translucent, long and cylindrical, curved ventromedially (ml in Fig. 140, 142–143View FIGURES 138 – 145); secondary lobe of penes whitish, shorter, cylindrical (sl in Fig. 140, 142–143View FIGURES 138 – 145). Caudal filaments whitish translucent.

Female imago. Length (mm): body, 9.5–11.2; foreleg reduced to coxa and trochanter; fore wing, 9.6–10.5; hind wing, 3.7–4.3; cerci, 3.0. Color pattern similar to male, except head with larger pale area on occiput, and abdominal sterna with paler medial area. Abdominal sternum VIII with small, paired, anteromedian, V-shaped sockets; furrow relatively narrow ( Figs. 144View FIGURES 138 – 145).

Egg. Length, 330–350 µm; width, 265–275 µm. Yellowish; no polar cap; with small, circular, amorphous, adhesive structure on convex side.

Etymology. The name, a noun in apposition, refers to the type locality, the river Cotaxé  .

Distribution ( Fig. 181View FIGURES 181). Brazil (Espírito Santo).

Diagnosis. Campsurus cotaxe  sp. nov., known from adults of both sexes, can be distinguished from other species of Campsurus  by: 1) sternum IX with straight hind margin ( Figs. 140View FIGURES 138 – 145); 2) pedestal bases distinctly separated in the middle, parastylus conical, subequal in length to main body of pedestal, inner corner also projected but slightly ( Fig. 140–141View FIGURES 138 – 145); 3) penes base well developed, main lobe of penes long and cylindrical, curved ventromedially, secondary lobe of penes shorter, cylindrical ( Figs. 140, 142–143View FIGURES 138 – 145); 4) small size (length of male fore wings ca. 7–8 mm); 5) female sockets small, anteromedian and V-shaped ( Figs. 144View FIGURES 138 – 145); 6) egg without polar cap, with amorphous, circular structure on convex side.

Discussion. Campsurus cotaxe  sp. nov. is similar to C. segnis  and C. ulmeri  , sharing the general form of pedestals and penes, especially the long and narrow penes lobes (main and secondary), that are medially and ventrally curved. These morphologically similar species can be distinguished because the base of the penes is well developed in C. cotaxe  sp. nov. (bp in Fig. 140View FIGURES 138 – 145), and the penes lobes (mainly the secondary ones) are basally fused to the penes base ( Fig. 140View FIGURES 138 – 145). In the other two species, both penes lobes (main and secondary) form a more independent unit ( Fig. 138View FIGURES 138 – 145). Furthermore, the pedestals are different: the parastylus is shorter, narrowing toward the apex in C. cotaxe  sp. nov., but it is long and slender from the base in the other two species.

PSP

Parasitic Seed Plants

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Polymitarcyidae

Genus

Campsurus

Loc

Campsurus cotaxe

Molineri, Carlos & Salles, Frederico F. 2017
2017
Loc

Campsurus

Angeli 2015: 202
2015