The Male Genitalia of the New Zealand Glyphipterygidae.

Transactions and Proceedings of the Royal Society of New Zealand, Volume 58, 1928, Page 337

The Male Genitalia of the New Zealand Glyphipterygidae. By Alfred Philpott, Hon. Research Student in Lepidoptera, Cawthron Institute, Nelson, New Zealand. [Read before the Nelson Philosophical Society, 31st August, 1927; received by Editor, 10th September, 1927; issued separately, 12th November, 1927.] Introductory. The Glyphipterygidae are represented in New Zealand by eight genera. Of these, one, Choreutis, may not naturally belong to the fauna, the only species present, C. bjerkandrella Thunb., being quite possibly an introduction from Europe. Of the remaining seven, four are endemic, three of these being monotypic, and the other containing only three species. Half of our total species belong to Glyphipteryx, this genus embracing 31 out of an aggregate of 62. The male genitalia, as far as is shown by the New Zealand forms, is of rather simple type. The eighth segment is not modified and the tegumen and vinculum are frequently imperfectly fused or altogether free. Except in Hierodoris, the gnathos is absent, and there is little development of the uncus. The saccus is usually small, and, where elongate, narrow; in several instances it is entirely absent. The aedeagus is generally of simple tubular type and is supported by a juxta which may be a plain folded plate or a more elaborate sheath-like structure. The harpes are almost always simple and entire; in only a few instances is there a lobe-like sacculus present. Three monotypic genera, Charixena Meyr., Coridomorpha Meyr. and Pantosperma Meyr. are not here dealt with, no material of these being at the writer's disposal. Genus Simaethis Leach (Figs. 1–10). Cosmopolitan, but chiefly characteristic of the Australasian and Indo-Malayan regions; there is also considerable development in South America. Seventeen species, all of which are endemic; ten of these have been available for examination. Tegumen not fused with vinculum, moderately broad dorsally; uncus usually only slightly developed, but in some species fairly long and acute. Gnathos absent. Vinculum broad, with short moderately broad apically rounded saccus. Aedeagus moderate, of simple tubular shape, frequently more or less curved. Juxta a plain plate which is folded round the aedeagus, assuming the shape of a conical hat. Harpes broad, apically rounded, entire, the sacculus indicated by a

Lettering. ae. aedeagus: at, anal tube; de, ductus ejaculatorius; g, gnathos; h, harpe; j, juxta; s, saccus; teg, tegumen; u, uncus; vin, vinculum. Fig. 1.—Simaethis barbigera Meyr. A, male genitalia, lateral view; B, harpe inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, dorsal view. Fig. 2.—S. exocha Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, dorsal view. Fig. 3.—S. albifasciata Philp. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta; E, saccus. Fig. 4.—S. microlitha Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, vinculum and tegumen, dorsal view; D, aedeagus and juxta.

Fig. 5.—S. combinatana Walk. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta; E, tegumen, dorsal view. Fig. 6.—S. marmarea Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 7.—S. colpota Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; E, saccus, ventral view. Fig. 8.—S. antigrapha Meyr. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta; E, saccus, ventral view. Fig. 9.—S. symbolaea Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, ventral view. Fig. 10.—S. analoga Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, saccus, ventral view.

Fig. 11.—Glyphipteryx dichorda Meyr. A, male genitalia, inner view; B, harpe, inner view; D. aedeagus and juxta; E, vinculum, dorsal view. Fig. 12.—G. leptosema Meyr. A., male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta. Fig. 13.—G. aulogramma Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, ventral view. Fig. 14.—G. bactrias Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, vinculum and tegumen, dorsal view; D, aedeagus and juxta. Fig. 15.—G. aenea Philp. A, male genitalia, lateral view; B, harpe, aedeagus and juxta. inner view; 0, vinculum, dorsal view. Fig. 16.—G. rugata Meyr. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta.

Fig. 17.—G. nephoptera Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, dorsal view. Fig. 18.—G. metastica Meyr. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta; E, vinculum, dorsal view. Fig. 19.—G. achyoessa Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 20.—G. brachydelta Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, vinculum, ventral view; D, aedeagus and juxta. Fig. 21.—G. barbata Philp. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, ventral view.

Fig. 22.—G. transversella Walk. A, male genitalia, lateral view; B, harpe, inner view. Fig. 23.—G. octonaria Philp. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta; E, vinculum, ventral view. Fig. 24.—G. ataracta Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 25.—G. oxymachaera Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 26.—G. codonias Meyr. A, male genitalia, lateral view; B, harpe, inner view: D, aedeagus and juxta; E, vinculum, ventral view. Fig. 27.—G. locheaera Meyr. A, male genitalia, lateral view; B. harpe.

Fig. 28.—G. zelota Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, vinculum and tegumen, dorsal view; D, aedeagus and juxta. Fig. 29.—G. triselena Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 30.—G. acronoma Meyr. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta; E, vinculum, ventral view. Fig. 31.—G. necopina Philp. A, male genitalia, lateral view; B, harpe, inner view. Fig. 32.—G. cionophora Meyr. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta.

Fig. 33.—G. erastis Meyr. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta. Fig. 34.—G. acrothecta Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 35.—Choreutis bjerkandrella Thunb. A, male genitalia, view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta; E, vinculum, ventral view. Fig. 36.—Heliostibes electrica Meyr. A male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta. Fig. 37.—H. atychioides Butl. A, male genitalia, lateral view; B, harpe, inner view; C, tegumen, dorsal view; D, aedeagus and juxta. Fig. 38.—H.

Fig. 39.—Hierodoris iophanes Meyr. A, male genitalia, lateral view; B, harpe, inner view; C, uncus and gnathos, dorsal view; D, aedeagus. Fig. 40.—H. frigida Philp. A, male genitalia, lateral view; B, harpe, inner view; D, aedeagus and juxta.

fold, but not free, clothed within with tracts of moderately long hair, in some instances with modified scales. Outwardly the harpes are thickly scaled; in the figures, for the sake of clearness, these scales have been omitted. Genus Glyphipteryx Hb. (Figs. 11–34.) Cosmopolitan, but most numerous in the Australasian and Indo-Malayan regions. Thirty-one species, all endemic; twenty-four have been dissected. Tegumen very narrow, fused with vinculum, sometimes not fused dorsally; uncus absent, or present as an acutely pointed process, never very long. Vinculum small, in only one species, G. zelota Meyr., is it of moderate dimensions; saccus frequently absent or short and thin, but in some species moderately long. Gnathos absent. Aedeagus moderate or short, simple, tubular, tending to be apically swollen but sometimes tapered. Juxta forming a sheath of greater or lesser length in which the aedeagus lies; the lateral arms of the juxta are fused with the processes from the upper basal angles of the harpes, so that in dissection these parts sometimes adhere to one organ and sometimes to the other; quite frequently, however, they split into two halves. Harpes simple, entire, varying in shape from very narrow to broadly rounded; inner surface usually covered, except near base, with weak hair. Genus Choreutis Hb. (Fig. 35.) The almost world-wide C. bjerkandrella Hb. is the only representative of the genus Tegumen narrow, not fused with vinculum; uncus not developed; anal tube short, broad. Gnathos absent. Aedeagus moderate, curved, swollen apically, basally with projection above entrance of ductus ejaculatorius. Juxta a small folded plate closely embracing aedeagus. Vinculum broad with moderately broad and deep short, -quadrangular, deeply cleft obliquely on lower apical angle, above cleft a curved finger-like lobe densely haired on lower margin, above this lobe a second with thin pointed apex and expanded basal part. Genus Heliostibes Z. (Figs. 36–38.) Seven New Zealand and one South American species are known. Three species have been available for examination. H. electrica Meyr. and H. illita Feld. do not differ much in the characters of the male genitalia. but H. atychioides Butl. exhibits considerable divergence. The two types will therefore be described separately as “A” and “B” respectively. A.—Tegumen moderate, not fused with vinculum; uncus small, narrow. Vinculum very narrow with small saccus. Gnathos absent. Aedeagus moderate with long basal “heel.” Juxta an enveloping band with a pair of fairly long lobes. Harpes moderate to large, sacculus with two obliquely transverse lobes, ventral margin more or less indented.

B.—Tegumen not fused with vinculum; uncus moderately long, narrow. A true gnathos absent, but a slight chitinisation of the closing membrane appears to function in a similar manner. Aedeagus stout, irregular, with complicated apical portion. Juxta a simple oval plate, more strongly chitinised round margin. Harpes moderate, entire, sacculus a simple fold without lobes. Genus Hierodoris Meyr. Endemic. Three species, of which one, H. stellata Philp., is only known by the type specimen. Tegumen fused with vinculum, but point of union apparent; uncus well developed, curved, finger-like. Gnathos a plain band upturned at apex. Vinculum small, lateral arms narrow; saccus small. Aedeagus stout, moderate or long. Juxta a plain plate with a pair of short finger-like lobes. Harpes with sacculus forming a long transverse lobe reaching beyond upper margin and having a short lobe beneath it at base. A very similar type of harpe is to be found in some species of Gymnobathra, e.g., G. coarctatella Walk., and G. parca Butl. (See Trans. N.Z. Inst., vol. 57, p. 716.)