Cis gumiercostai Almeida & Lopes­Andrade, 2004

Almeida, Sabrina Da Silva Pinheiro De & Lopes-Andrade, Cristiano, 2004, Two new Brazilian species of Cis Latreille, 1796 (Coleoptera: Tenebrionoidea: Ciidae), Zootaxa 717, pp. 1-10 : 5-8

Cis gumiercostai Almeida & Lopes­Andrade , sp. nov. ( Figs. 6–10 )

Holotype. Male, BRASIL: MG: Cardeal Mota (dist. Santana do Riacho), P. N. da Serra do Cipó, 21.vii. 2002, C. Lopes­Andrade. In addition to the locality label, the holotype has a red label with its identification.

Diagnosis. This species can be distinguished from the other described Brazilian species of Cis , but C. leoi , by the following combination of characteristics: (i) distinct seriate and dual elytral punctation; (ii) lack of conspicuous frontoclypeal tubercles in both genders. It can be easily distinguished from C. leoi and C. fiuzai sp. nov., and also from the other species of the comptus group, by the morphology of the male genitalia.

Description. Male. Body length (excluding head): 1.45–1.65 mm (mean = 1.55; S.D. = 0.09); elytral length: 0.95–1.1 mm (mean = 1.03; S.D. = 0.08); greatest elytral width: 0.60–0.70 mm (mean = 0.66; S.D. = 0.05); greatest pronotal width: 0.55–0.65 mm (mean = 0.60; S.D. = 0.05); greatest depth: 0.45–0.50 mm (mean = 0.48; S.D. = 0.03). Body 2.29– 2.42 × as long as elytral width (mean = 2.35; S.D. = 0.07), convex, opaque on dorsum, dark yellowish brown; antennae, palpi and legs yellowish brown.

Head convex, deeply and ovally concave in the middle of vertex, conspicuously punctate; punctures uniform in size, bearing short and robust yellowish bristles; intervals among punctures finely reticulate; clypeus with one small, inconspicuous tubercle on each side; antennae with 3rd segment as long as 4th; 5th to 7th subequal, each one with approximately half the length of the 4th; 8th to 10th forming a loose club, each club bearing four “sensillifers” formed by a group of short, sparse and not well­organized sensillae.

Pronotum 0.77–0.92 × as long as broad (mean = 0.87; S.D. = 0.06), convex; anterior margin broadly rounded, each side curved inward; anterior angles slightly produced; lateral margins narrowly ridge, finely crenulate, barely visible for their entire lengths from above; dorsum irregularly and distinctly punctate; punctures uniform and similar in size to those on head, each bearing a short, robust, yellowish bristle; intervals among punctures finely reticulate. Scutellum subpentagonal ( Fig. 6 ). Elytra 1.50–1.58 × as long as broad (mean = 1.56; S.D. = 0.04), 1.90–2.20 × as long as pronotum (mean = 1.98; S.D. = 0.13); sides subparallel in basal two­thirds, then gradually converging to apex; lateral margins not visible from above, except for basal corners; base and disc with dual and seriate punctation, the larger punctures being two to four times the size of the smaller ones; the smaller punctures inconspicuous, bearing bristles similar to those on pronotum.

Prosternal disc slightly convex; prosternal process parallel sided, slightly curved and smaller in length than the prosternum ( Fig. 7 ). Outer apical angle of protibia produced forming a tooth ( Fig. 8 ). Metasternum with longitudinal suture (discrimen) in its middle, extending from base to disc. First ventrite bearing a setose patch ( Fig. 9 ).

Male genitalia ( Fig. 10 ). Eighth sternite subtrapezoidal, with its posterior margin slightly curved inward. Tegmen with diverging lateral margins; basiconical sensillae distributed along the apical and until the middle of the lateral margins; apical margin strongly emarginate at middle, forming two lateral lobes; basal margin rounded. Median lobe 0.67× as long as tegmen, subparallel sided in its basal three­fourths, then slightly constricted and expanded in a rounded apex, forming a somewhat globular apex.

Female. Body length (excluding head): 1.40–1.65 mm (mean = 1.56; S.D. = 0.10); elytral length: 1.0– 1.15 mm (mean = 1.08; S.D. = 0.06); greatest elytral width: 0.65– 0.65 mm (mean = 0.65; S.D. = 0.0); greatest pronotal width: 0.55–0.60 mm (mean = 0.58; S.D. = 0.03); greatest depth: 0.45–0.50 mm (mean = 0.48; S.D. = 0.03). First ventrite without a setose patch.

Other specimens examined. Paratypes (51): 24 males, 27 females, same data as holotype. Besides a locality label, all paratypes have a yellow label with their identifications.

Host fungus. Bracket mushroom ( Polyporaceae sensu lato), unidentified species, growing in a wood fence.

Etymology. This species is named in honor of Fabiano Gumier­Costa, who was wandering around the Cerrado vegetation of Serra do Cipó while C. Lopes­Andrade collected this species. Fabiano is an enthusiastic of insect taxonomy, etology and ecology. Recently, he has got his Master Degree in Entomology with a dissertation on the ecology of Ciidae from the Amazon Forest.

Distribution. Known from a single field collection in Cardeal Mota (dist. Santana do Riacho, Minas Gerais State, BRAZIL; 19º30’S, 43º44’W).

Depositories. Holotype (male), 1 male and 1 female paratype at “Museu de Zoologia da Universidade de São Paulo”, São Paulo, SP, BRAZIL. Two specimens will be deposited in the following personal or institutional collections: Mr. Ayr de Moura Bello, BRAZIL; Mr. Rafal Ruta, POLAND; Mr. Roman Królik, POLAND; Dr. Paulo Sérgio Fiuza Ferreira, “Museu de Entomologia da Universidade Federal de Viçosa”, Viçosa, MG, BRAZIL; Dr. John F. Lawrence, Australian National Insect Collection, CSIRO Entomology, Canberra, AUSTRALIA; Dr. Philip D. Perkins, Museum of Comparative Zoology, Harvard University, USA; Dr. Chuck Bellamy, California State Collection of Arthropods, Sacramento, USA. Remaining paratypes (35) are in the personal collection of the junior author.

Figures

FIGURE 10. Whole view of the male genitalia of Cis gumiercostai sp. nov. (male) evidencing the ninth tergite (ix­T), eighth sternite (viii­S), basal piece (bp), tegmen (teg) and median lobe (ml). Scale bar: 100 µm.

FIGURES 6 – 9. Scanning electron microscopy of Cis gumiercostai sp. nov. (males) evidencing some features of the external morphology. 1. Dorsal view, scutellum surrounded by part of elytra and pronotum. 2. Ventral view, prosternum and prosternal process. 3. Ventral view evidencing the protibia; note that the outer angle of the protibial apex is pronounced forming a tooth (arrow). 4. Detail of the first ventrite showing the setose patch (arrow). Scale bars: 50 µm.