Biphallapodema oligodentata Papp, 2014, sp. nov.
Creators: name: Papp, László
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sphaeroceridae
Biphallapodema
Biphallapodema oligodentata

description: Biphallapodema oligodentata sp. nov.
(Figs 17–27)
Type material. Holotype male (HNHM, body in a canada balsam preparation, abdomen with synsternite as well as genitalia with a part of S8 separated, and kept in a plastic microvial with glycerol): CONGO: Brazzaville, ORSTOM park, soil traps in forest, 2. I. 1964.—14 days, leg. J. Balogh & A. Zicsi—Hung. Soil-Zool. Exp., Congo No. 572.
Paratypes (HNHM): 2 males 1 female (in a canada balsam preparation, males’ abdomen and genitalia in a plastic microvial with glycerol): ibid., 21. XI. 1963 - soil traps in forest, 3 days, No. 219. 1 male 2 females, 1 male 1 female (in 2 canada balsam preparations, abdomen and genitalia of the latter male in a plastic microvial with glycerol): ibid., soil traps around leaf-compost, No. 219, 16. XI. 1963, 20 days.
Description. Measurements in mm: body length 1.50 (holotype), 1.42–1.60 (paratypes); wing length 1.20 (holotype), 1.14–1.28 (paratypes); wing width 0.58 (holotype), 0.57–0.60 (paratypes). The two species of the genus differ in details of the male and female genitalia. Thus, only those characteristics are described below.
Male. Sternite 5 (Figs. 21–22) with a not divided broad medio-caudal emargination, which bears a pair of processes of 5–6 long flat pegs each. Surstylus (Fig. 25) with anterior part narrower than in B. polydentata. Basiphallus (Figs 23, 26) larger but epiphallus thinner than in B. polydentata. Distiphallus (Figs 26–27) with a large ventrally curved apical process, which is dentate on margins; an additional dorsal process also present.
Postgonite (Figs 23–24) seems more strongly connected to the lower branch of connecting sclerite than in B. polydentata. Postgonite with a blunt caudal, as well as a very broad apical lobe each.
Female sternite 8 (Fig. 17) weakly sclerotised, covered by small hairs, except anterior margin, sternite 8 bears some very short setulae only. Hypoproct (Fig. 18) strongly sclerotised on a broad caudal rim, medial part membranous, its strong caudal part bears 2–3 upcurved setae in ventral view. Epiproct (Fig. 19) comparatively large with minute hairs, except antero-lateral parts; its setal pair thin but long. Cercus (Fig. 19) normal in shape, each with a pair of very long apical and medial pair of setae. Spermathecae (Fig. 20) peculiar in shape: proximodistally flattened with a subcylindrical, more sclerotised inner part, sclerotised parts of ducts short with a bulbous distal end each. That is, common duct of paired spermathecae very short, its bulb occupies more than half of it.
Etymology. The specific epithet of this new species (‘oligodentata’ = a few teeth) refers to the low-numbered (5 each) pegs on the pair of processes on male sternite 5.
description: Published as part of Papp, László, 2014, New genera of Afrotropical limosinine sphaerocerids (Diptera: Sphaeroceridae), pp. 101-130 in Zootaxa 3764 (2) on pages 107-108, DOI: 10.11646/zootaxa.3764.2.1, http://zenodo.org/record/227668