Oliveiriella almeidai (Oliveira, 1946), gen. nov., comb, nov, from South America with description of the pupae (Insecta, Diptera, Chiromidae, Orthocladiinae). Sofia Wiedenbrug and Ernst Josef Fittkau Wiedenbrug, S. & E. J. Fittkau (1997): Oliveiriella almeidai (Oliveira, 1946), gen. nov., comb, nov, from South America with description of the pupae (Diptera, Chiromidae, Orthocladiinae). -Spixiana 20/2: 167-172 The new genus Oliveiriella, from South America is erected for the species Spani-otoma (Stictocladhis) almeidai Oliveira, 1946. The type species is Oliveiriella almeidai (Oliveira), by monotypy. Diagnoses and descriptions are given for the adult male and pupa. Sofia Wiedenbrug, Prof. Dr. Ernst Josef Fittkau, Zoologische Staatssammlung, Münchhausenstr. 21, D-81247 München, Germany. Introduction The species Spaniotoma (Stictocladhis) almeidai was described by Oliveira (1946) and included in the subgenus Stictocladhis Edwards, 1931, mainly because of the wing markings. Recently, Spaniotoma has been treated as a nomen dubium (Ashe 1983). Brundin (1956) transferred the entire subgenus Stictocla-dius to Diplocladius Kieffer, 1908. Cranston et al. (1989: 191) considered that Stictocladhis is unrelated to Diplocladius. Spies & Reiss (1996) regarded Stictocladhis as a genus, but listed Spaniotoma (Stictocladhis) almeidai as an unplaced valid species in Orthocladiinae. Pupal exuviae of this species have been found in Rio Grande do Sul (Brazil), and material from the Zoologische Staatssammlung shows that this species also occurs in Peru and Ecuador. The new genus Oliveiriella is here erected for this species, and generic diagnoses are given for the adult male and pupa. The terminology used in this publication follows that of Saether (1980). Oliveiriella, gen. nov. Type species: Oliveiriella almeidai (Oliveira, 1946: 279), by monotypy. Generic diagnosis Adult male. Head. Eye hairy. Antenna with 12 flagellomeres. Temporals divided into inner and outer verticals. Postorbitals absent. Palp 5-segmented. Thorax. Antepronotals absent. Dorsocentrals small, decumbent, and uniserial. Acrostichals weak, starting near the antepronotum. Prealars not extending anterior to level of median anepisternum, scutellars in a Single, transverse row. Wings. Costa extended beyond R 4+5 . R 2+3 ending closer to R, than to R 4+5 . Abdomen. With few setae on the tergites. Anal point absent. Superior volsella absent, inferior 167
Oliveiriella almeidai (Oliveira, 1946), gen. nov., comb. nov., from South America with description of the pupae (Insecta, Diptera, Chironomidae, Orthocladiinae)
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