Guimarães, Lindolpho R.

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Papéis Avulsos de Zoologia MUSEU DE ZOOLOGIA DA UNIVERSIDADE DE SÃO PAULO ISSN 031-1049 Papéis Avulsos Zool., S. Paulo, 36(4): 37-39 15.111.1985 ISCHNOCERA (MALLOPHAGA) INFESTING PARROTS (PSITTACIFORMES). VI. A NEW SPECIES OF THERESIELLA GUIMARÃES. 1971 (PHILOPTERIDAE). Lindolpho R. Guimarães Abstract Theresiella clayae, sp.n., is described from Psitacella madaraszi, from New Guinea. Guimarães (1971) described Theresiella to contain two new species, hitchcocki and gemina, both collected on birds identified as Psitacella brehmi; this parrot genus is restricted to New Guinea. Peters (1937) assigns to it three species, brehmi, picta and modesta, with madaraszi as a subspecies of the latter. Forshaw (1973), however, considers madaraszi a good species, with three subspecies. The materiais used in the present paper are labelled as collected on P. madaraszi from Enarotali. This locality, in Paniai Division, Irian Jaya, is outside the range of madaraszi as outlined by Forshaw (1973). Theresiella clayae, sp.n. (Figs. 1-2, 4-7) Type host: Psittacella madaraszi Specimens examined: three males and three females collected on the type host from Enarotali, Paniai Div,, Irian Jaya New Guinea (BBM-NG 21.491 and 21.465), N. Wilson coll. Similar to T. hitchcocki and T. gemina but with a shorter pre-«ntennal portion in both sexes, resulting in a different size and shape of the carinae; for the same reason the anterior dorsal plate is characteristically shaped. The thorax and abdômen are also similar to those of the previously known species (unfortunately, very probably due to the process of mounting, it was not possible to ascertain the presence of the sternal plates in either sex). The processes of the postero-lateral corners of the ventral aspect of abdominal segment II (fig. 5) reach at most the posterior margin of segment III. The lateral processes of the female genitalia (fig. 4 in Guimarães, 1971) found in hitchcocki and gemina, are not present in clayae (fig. 6). The male genitalia of the new species differ from those of the other two. The spiniform projections on the mediai aspect of the paramers are less conspicuous; the mesosome, although somewhat resembling that of gemina, is also characteristic (fig. 7). Museu de Zoologia da Universidade de São Paulo. Supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico. CNPq (Proc. 2222.0590/76) and Fun- dação de Amparo à Pesquisa do Estado de São Paulo. FAPESP (Proc. Biológicas 79/0884). 38 Papéis Avulsos de Zoologia 7 c ii -d n Theresiella clayae: Fig. 1. male; flg. 2, female. Head Prothorax * Pterothorax Abdômen Total Measurements in mm Holotyipe ($) length width 0.530 0.540 0.260 0.370 0.240 0.650 0.900 0.650 1.840 — Allotype ($) length width 0.540 0.590 0.260 "0.420 0.330 0.710 0.960 0.820 1.900 — Head Prothorax Pterothorax Abdômen Total Head Prothorax Pterothorax Abdômen Total Paratype 0.520 0.250 0.240 0.990 1.890 ($) 0.570 0.350 0.590 0.650 Paratype (<$) 0.520 0.560 0.250 0.350 0.260 0.580 1.000 0.680 1.930 — Paratype ($) 0.530 0.590 0.250 0.400 0.330 0.660 1.000 0.660 2.000 _ Paratype ($) 0.530 0.580 0.250 0.380 0.280 0.630 0.930 0.610 1.950 — * 'Length of prothorax" includes the part adpressed to the ventral aspect of the head Vol. 36 (4), 1985 39 1 : ^ V ity Pr Theresiella hitchcocki: Fig. 3,. pre-antennal region of head i (dorsal); Thereslella clayae\ fig. 4, pre-antennal region o£ head '6 (dorsal); fig. 5. projection of latero-posterior comer of the segment II of female (ventral); fig. 6, genital region of female (ventral): fig. 7, genitalia of male (holotype). Holotype male, Allotype female, and one couple (male and female) of Paratypes in the K.C. Emerson Collection. One male and one female Para- types in the Museu de Zoologia, Universidade de São Paulo. Etymology: the species name is meant to complete an homage to dr. Theresa Clay, after whom the genus was named. Theresiella gemina Guimarães, 1971 Theresiella gemina Guimarães, 1971: 216, fig. 6 Since the original description I have examined six additional specimens in the K.C. Emerson Collection, three of either sex, collected on a "grass parrot" from Bulldog Road, Morobe, New Guinea, 26.V.1962, H. Clissold coll. References Forshaw, J.M., 1973. Parrots of the World, Melbourne: Lansdowne Press. 584 p. Guimarães, L.R.. 1971. A new genus and two new species of parrot Mallophaga (Philopteridae) from New Guinea. Papéis Avulsos Zool.. S. Paulo 24 (17); 213-220. Peters, J.L., 1937. Check list of Birds of the World, Vol. 3. Cambridge. Massachusetts : Harvard University Press, xiv + 311 p. 

Ischnocera (Mallophaga) Infesting Parrots (Psittaciformes). VI. A new species of Theresiella Guimarães. 1971 (Philopteridae).

https://www.revistas.usp.br/paz/article/download/211450/193711/621935

Ischnocera (Mallophaga) Infesting Parrots (Psittaciformes). VI. A new species of Theresiella Guimarães. 1971 (Philopteridae).

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