| Pycnocentrodes | |
|---|---|
 | |
| Pycnocentrodes aureolus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Trichoptera |
| Family: | Conoesucidae |
| Genus: | Pycnocentrodes Tillyard, 1924 |
| Species [1] | |
Pycnocentrodes is a genus of caddisflies belonging to the family Conoesucidae. [1] The genus was first recognised by Robert John Tillyard in 1924. [2] All known species of Pycnocentrodes are endemic to New Zealand.
The genus was first identified by Robert John Tillyard in 1924, who identified Pycnocentrodes chiltoni as the type species. [2] In 1962, K. A. J. Wise recombined two of the original species identified by Tillyard, P. hamiltoni and P. olingoides, into a new genus called Confluens. [3]
Reviewing the genus in 1970, Wise noted that it was likely that there was either a highly morphologically variable species or a species complex within Pycnocentrodes, due to wide-ranging variations in size, wing colour and pattern and genitalia. [4] In 1976, Donald R. Cowley synonymised P. chiltoni (the former type species of the genus) and P. unicolorWise, 1958 with P. aureolus . [5]
Genetic analysis places Pycnocentrodes within a clade of New Zealand endemic caddiesflies who all share a common ancestor: Pycnocentrodes, Periwinkla, Confluens and Beraeoptera. [6]
Tillyard's original text (the type description) reads as follows:
Allied to Pycnocentria McL, from which it differs by the absence of the web fold in forewings of male, and the consequent normal structure of the radial sector in both sexes. The radial cell is present, and is of a somewhat narrowed, elongate form, basal portion being particularly narrowed. In some cases the stem of R2+3 may be weakened or obsolescent, so that the radial cell is incomplete above (as in P. olingoides n. sp.), but venation is always very distinct from that of Pycnocentria, where all the branches of Rs, M, and Cu1, come off direct from longitudinal fold. Stem of R2+3 in hindwing of male also weakened or obsolete, leaving radial cell open above. Apical forks of forewing all present, as in Pycnocentria; in hindwing, only 1, 2 and 5 present, as also in Pycnocentria. No longitudinal fold in hindwing of male. Tibial spurs 2, 2, 4. Maxillary palpi of male short and hairy, not projecting beyond end of first antennal segment. [2]
The genus is found in New Zealand. [1]
Conoesucidae is a family of caddisflies in the order Trichoptera. There are about 12 genera and more than 40 described species in Conoesucidae.
Drepanacra binocula, known as the Australian variable lacewing, is a species of brown lacewing in the family Hemerobiidae, found across Australia and New Zealand, including Lord Howe Island, Norfolk Island and the Kermadec Islands.
Protobiella zelandica is a species of New Zealand beaded lacewing in the family Berothidae that was first described by Robert John Tillyard in 1923. It is the sole known species in the genus Protobiella, and the only berothid endemic to New Zealand. No subspecies are noted in the Catalogue of Life.
Alloecentrella is a genus of caddisflies belonging to the order Trichoptera. The genus was first recognised by Keith Arthur John Wise in 1958.
Alloecentrella magnicornis is a species of caddisfly belonging to the order Trichoptera. The species was first described by Keith Arthur John Wise in 1958, and is endemic to New Zealand.
Ecnomina zealandica is a species of caddisfly belonging to the family Ecnomidae. The species was first described by Keith Arthur John Wise in 1958, and is endemic to New Zealand.
Neobiosella is a monotypic genus of caddisfly belonging to the family Philopotamidae. The sole species found in this genus is Neobiosella irrorata. Both the genus and species were first described by Keith Arthur John Wise in 1958. Neobiosella is endemic to New Zealand.
Oeconesus is a genus of caddisflies belonging to the family Oeconesidae. The genus was first recognised by Robert McLachlan in 1862. All known species of Oeconesus are endemic to New Zealand.
Pseudoeconesus bistirpis is a species of caddisfly belonging to the family Hydrobiosidae. The species was first described by Keith Arthur John Wise in 1958, and is endemic to New Zealand.
Olinga is a genus of caddisflies belonging to the family Oeconesidae. The genus was described by Robert McLachlan in 1868, revising the genus name in 1894. All known species of Olinga are endemic to New Zealand.
Olinga fumosa is a species of caddisfly belonging to the family Conoesucidae. The species was first described by Keith Arthur John Wise in 1958, and is endemic to New Zealand.
Pycnocentrodes aeris, also known as the common stony-cased caddisfly, is a species of caddisfly belonging to the family Conoesucidae. The species was first described by Keith Arthur John Wise in 1958, and is endemic to New Zealand.
Confluens is a genus of caddisflies belonging to the family Oeconesidae. The genus was described by Keith Arthur John Wise in 1962, after noticing differences in two species previously placed within the genus Pycnocentrodes. Both species of Confluens are endemic to New Zealand.
Polyplectropus impluvii is a species of caddisfly belonging to the family Polycentropodidae. The species was first described by Keith Arthur John Wise in 1962, and is endemic to New Zealand.
Orthopsyche thomasi is a species of caddisfly belonging to the family Hydropsychidae. The species was first described by Keith Arthur John Wise in 1962, and is endemic to New Zealand.
Orthopsyche is a genus of caddisflies belonging to the family Hydropsychidae. The genus was described by Alex G. McFarlane in 1976. Species of Orthopsyche can be found in New Zealand and New Caledonia.
Costachorema notopterum is a species of caddisfly belonging to the family Hydrobiosidae. The species was first described by Keith Arthur John Wise in 1972, and is endemic to the Auckland Islands of New Zealand.
Tiphobiosis kuscheli is a species of caddisfly belonging to the family Hydrobiosidae. The species was first described by Keith Arthur John Wise in 1972, and is endemic to the Auckland Islands of New Zealand.
Psilochorema embersoni is a species of caddisfly belonging to the family Hydrobiosidae. The species was first described by Keith Arthur John Wise in 1982, and is endemic to New Zealand.
Edpercivalia harrisoni is a species of caddisfly belonging to the family Hydrobiosidae. The species was first described by Keith Arthur John Wise in 1982, and is endemic to New Zealand.
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