Valid Names Results

Newsteadia tristani (Silvestri, 1924) (Ortheziidae: Newsteadia)

Ortheziola tristani Silvestri 1924: 174-176. Type data: COSTA RICA: San Jose, in detritus, by J.F. Tristan. Syntypes, unknown, Type depository: Portici: Dipartimento de Entomologia e Zoologia Agraria di Portici, Universita di Napoli Federico II, Italy; accepted valid name Notes: According to Marotta (personal communication, September 29, 1998) there is a slide marked "typus!" and a vial of dry material marked "cotypus!" in the IFSP. Both are labeled "S. Josè, Costa Rica, F. Tristano, 1/1917." However, this material must be considered syntypic since there is no mention of a holotype in the original description. Illustr.
Newsteadia tristani (Silvestri, 1924); Morrison 1952: 59. change of combination

Families: 1 | Genera: 1

Countries: 4

Caball2021: pp.347 ( Adult (F) ) [New World Newsteadia]
Kozar2004: pp.38-41 ( Adult (F) ) [Key to the world species of Newsteadia]
KozarKo2001: pp.140 ( Adult (F) ) [Key to Newsteadia species in the Nearctic and Neotropic Regions]
Howell1975: pp.166 ( Adult (F) ) [Additions to Morrison's key to Newsteadia species]
Morris1952: pp.59 ( Adult (F) ) [Species of Newsteadia]

Systematics: The preadult female of N. tristani is similar to that of N. trisegmentalis. The most important difference is the presence of a sensory seta on the apical segment of N. trisegmentalis. This seta is absent in N. tristani. The setae on the first 2 segments of the antennae and coxae of N. tristani are long and clavate, but short and not clavate in all stages of N. trisegmentalis, the latter species also has long tubular ducts (Kozár & Konczné Benedicty, 2001).
Structure: Mounted adult female 1.3 mm long, 0.9 mm wide. Antenna 3-segmented. Ovisac band not interrupted, but short, ovisac wax plate groups on last segments of abdomen absent; wax plates few on thorax and head. Dorsal wax plates in wide bands, partly divided in midline. Spines at margin of wax plate elongate, with apically rounded apex (Kozár & Konczné Benedicty, 2001).
General Remarks: Original description and illustration by Silvestri (1924). Detailed redescription and illustration by Kozár & Konczné Benedicty, (2001), and by Kozár (2004).