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Volume 57, 1927
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A List of the Lepidoptera of Deans's Bush, Riccarton, Canterbury.

[Read before the Philosophical Institute of Canterbury, 7th October, 1925, received by Editor, 15th October, 1925; issued separately, 19th February, 1927.]

In company with Mr. W. Heighway, I made, during the season from October, 1924, to April, 1925, seventeen trips to the above reserve of native bush.

From this small patch of 15¾ acres I have been able to get a record of 142 species of Lepidoptera. Many of the species marked with an asterisk I have not taken previously in the neighbourhood of Christchurch, and they appear to be confined to that area, being the last survivors of the extensive swamp forest of which the bush is the only remnant.

A number of species which occur commonly in other bush-reserves on the Port Hills are, as far as I am aware, totally absent from Deans's Bush. This may be explained by the absence of a number of plants, such as manuka, tree-ferns, common tussock grass, etc., which occur in the Port Hills Bush areas. Some species are extremely abundant in the Riccarton reserve—and in their larval state must do a considerable amount of damage to the vegetation; this is very evident in the autumn, when some of the shrubs are eaten almost bare of leaves.

I do not expect the present list to be complete, as there are sure to be a few of the rarer species which we have overlooked and which may occur for a very limited season only, but it probably gives an accurate general idea of the lepidopterous fauna.

Our best thanks are due to Dr. Chilton, of Canterbury College, who supplied us with a permit to collect in the bush at night, and I am also indebted to Mr. Alfred Philpott, of the Cawthron Institute, Nelson, for identifying those species which were unknown to me.

In the following list, for the sake of brevity, I have indicated the months by numbers; many species appear to be double-brooded, occuring in spring and again in the autumn.

List of Species.

Leucania semivittata Walk. 10, two.
Leucania mollis Howes. 10, two.
Persectania ewingi (Westw.) 10, 11, 2, fairly common.
Persectania atristriga (Walk.) 2, not common.
Persectania steropastis (Meyr.) 12, one only.
Erana graminosa Walk. 10, 11, 2, few only.
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Aletia moderata (Walk.) 10, one only.
Melanchra plena (Walk.) 11, one only.
Melanchra coeleno Huds. 10, 11, several.
Melanchra diatmeta Huds. 10, one only.
Melanchra insignis (Walk.) 10, 11, 12, 2, not common.
Melanchra mutans (Walk.) 10, 1, 2, 4, fairly common.
Melanchra infensa (Walk.) 11, two only.
Melanchra ustistriga (Walk.) 2, few.
Melanchra alcyone Huds. 10, one only.
Melanchra stipata (Walk.) 10, 11, 2, common.
Ariathisa comma (Walk.) 1, several.
Rhapsa scotosialis Walk. 10 to 4, very common.
Tatosoma timora Meyr. 10, three only.
*Tatosoma topia Philp. 10, 11, 3, in fair numbers.
Chloroclystis sandycias Meyr. 11, 12, common.
Chloroclystis muscosata (Walk.) 10 to 4, fairly common.
Chloroclystis bilineolata (Walk.) 10, very few.
Elvia glaucata Walk. 10, 1 to 4, in fair numbers.
Phrissogonus denotatus (Walk.) 2, few.
Eucymatoge gobiata (Feld.) 10, 11, 1 to 3, not common.
Hydriomena deltoidata (Walk.) 1, 2, common.
Hydriomena similata (Walk.) 11, 12, 2 to 4, fairly common.
Venusia verriculata (Feld.) 10 to 4, very common.
Venusia undosata (Feld.) 10 to 4, very common.
Asaphodes megaspilata (Walk.) 10 to 4, very common.
*Asaphodes parora (Meyr.) 10 to 4, in fair numbers.
Xanthorhoe rosearia (Dbld.) 10, 12, 3, 4, a few only.
Xanthorhoe semifissata (Walk.) 10, few.
Xanthorhoe obarata (Feld.) 11, one only.
Xanthorhoe aegrota (Butl.) 11, one only.
Xanthorhoe benedicta Meyr. 10, 3, rare.
Xanthorhoe semisignata (Walk.) 10, 11, 12, a few at intervals.
Epirrhanthis alectoraria (Walk.) 11 to 4, fairly common.
*Selidosema argentaria Philp. 2, 3, two only.
Selidosema leucelaea Meyr. 10, 3, two only.
Selidosema suavis (Butl.) 10 to 4, common.
Selidosema melinata (Feld.) 11 to 4, extremely common in the autumn.
Selidosema dejectaria (Walk.) 10, 11, 1, 2, common.
Selidosema panagrata (Walk.) 10, 11, 2, 4, not common.
Sestra humeraria (Walk.) 10, 11, 12, fairly common.
Declana leptomera (Walk.) 10, three only.
Vanessa gonerilla (Fabr.) 1, 2, 3, occasional visitors; the food plant—Urtica ferox—does not grow in the bush.
Vanessa itea Fabr.
Chrysophanus salustius Fabr. 1, 2, 3, fairly common.
Chrysophanus feredayi Bates 1, 2, 3, fairly common.
Crambus ramosellus Dbld. 12, 1, a few in open spots.
Crambus flexuosellus Dbld. 11 to 4, very common.
Crambus tuhualis Feld. 2, several in open spots.
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Musotima nitidalis (Wak.) 10 to 2, common near soft bracken (Pteris incisa).
*Musotima aduncalis (Feld.) 10, 11, four only.
Mecyna maorialis (Feld.) 11, one only.
Mecyna flavidalis (Dbld.) 10 to 4, extremely common.
Scoparia minusculalis Walk. 12, 1, 2, not common.
Scoparia minualis Walk. 11, 1, few only.
*Scoparia colpota Meyr. 1, two only.
Scoparia chalicodes Meyr. 10, 11, few.
Scoparia sabulosella (Walk.) 10, 1, a few in open spots.
Scoparia petrina (Meyr.) 2, a few only.
Scoparia octophora (Meyr.) 1, one only.
Morova subfasciata Walk. 12, 4, scarce, five only.
Diplopseustis perieralis Walk. 1, one only.
Platyptilia aeolodes Meyr. 10 to 12, 2 to 4, common on outskirts of bush.
Carposina adreptella (Walk.) 2, not common.
Carposina exochana (Meyr.) 10, 11, 2, 3, 4, common in spring; few in autumn.
Catamacta gavisana (Walk.) 10, 11, 2, not common.
*Catamacta lotinana (Meyr.) 11, 12, a few taken near Cordyline.
Capua plagiatana (Walk.) 10 to 4, common.
Capua semiferana (Walk.) 12, a few in open spots.
*Tortrix charactana (Meyr.) 10, 11, 1, 2, 3, common in spring, few later.
Tortrix excessana (Walk.) 10 to 4, very common.
Tortrix flavescens (Butl.) 4, two only.
Ctenopseustis obliquana (Walk.) 10 to 4, fairly common.
Harmologa amplexana (Zell.) 10 to 12, 2 to 4, very common.
Cnephasia jactatana (Walk.) 10 to 1, not common.
Cnephasia incessana (Walk.) 11, 12, few.
*Spilonota dolopaea (Meyr.) 10, 12, two only.
*Eucosma querula Meyr. 11, 12, fairly common.
*Thiotricha tetraphala Meyr. 1, one only.
Anisoplaca achyrota (Meyr.) 1, one only.
Anisoplaca ptyoptera Meyr. 3, one only.
Elachista ombrodoca Meyr. 11, 4, few in open spots.
Zapyrastra calliphana Meyr. 1, few.
Borkausenia armigerella (Walk.) 10, 11, a few on edge of bush.
Borkausenia crotala Meyr. 10, a few on outskirts of bush.
Borkausenia innotella (Walk.) 10, 12, a few.
Borkausenia chloradelpha Meyr. 10, several.
Thamnosara sublitella (Walk.) 10, 12, 2, fairly common in spring.
Gymnobathra tholodella Meyr. 2, one only.
Gymnobathra hamatella (Walk.) 1, 2, rare.
Gymnobathra flavidella Walk. 1, two only.
Gymnobathra omphalota Meyr. 10, one at night; more common by day.
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Gymnobathra cenchrias (Meyr.) 1, few.
Gymnobathra hyetodes Meyr. 3, one only.
Izatha peroneanella (Walk.) 12, 2, few only.
Izatha picarella (Walk.) 1, one only.
*Izatha attactella Meyr. 10, one only.
*Izatha mira Philp. 12, one female.
Izatha convulsella (Walk.) 10, common.
Izatha planetella Huds. 2, one only.
Trachypepla anastrella Meyr. 11, two only.
Trachypepla conspicuella (Walk.) 2, few.
Trachypepla contritella (Walk.) 1, few.
Trachypepla aspidephora Meyr. 1, few.
Atomotricha ommatias Meyr. 10, few.
Barea confusella (Walk.) 2, one only.
Barea ambigua Philp. 12, one only.
Euchersadaula lathriopa (Meyr.) 12, two only.
Cryptolechia liochroa (Meyr.) 11, 12, several.
Stathmopoda skelloni (Butl.) 10 to 1, common.
Stathmopoda phlegyra Meyr. 12, one only.
Glyphipteyrx achlyoessa (Meyr.) 10, 11, fairly common in open spots.
Glyphipteyrx condonias Meyr 12, 1, not common.
Gracilaria linearis Butl. 1, 3, few.
Gracilaria elaeas Meyr. 3, 4, scarce.
*Gracilaria chrysitis Feld. 10, 4, fairly common.
*Batrachedra psithyra Meyr. 1, fairly common; attached to Pteris incisa.
Batrachedra agaura Meyr. 12, 1, few.
*Orthenches glyphtarcna Meyr. 12, 1, few.
Plutella sera Meyr. 12, 1, a few in open spots.
Plutella maculipennis Curt. 10 to 12, a few near margins of bush.
Plutella antiphona Meyr. 11, few.
Bedellia psamminella Meyr 4, one doubtful specimen.
*Hieroxestis hapsimacha (Meyr.) 11 to 2, fairly common near Cordyline.
*Erechthias acrodina (Meyr.) 10, one only.
Erechthias charadrota Meyr. 10 to 2, not common.
Erechthias fulguritella (Walk.) 10, 11, fairly common.
Eschatotypa melichrysa Meyr. 11, not common.
Eschatotypa derogatella (Walk.) 10 to 12, 2, few.
Crypsitricha mesotypa (Meyr.) 10 to 12, 2, fairly common
Archyala terranea (Butl.) 11, two only.
Sagephora phortegella Meyr. 10, 11, not common.
Monopis ethelella (Newm.) 10, 11, 2, 4, a few on edge of bush.
Tinea mochlota Meyr. 1, few.
Lysiphragma epixyla Meyr. 11, 12, few.
Lysiphragma howesi Quail. 11, one only.
*Mallobathra fragilis sp. n. Philp. 10, two only.