Termioptycha Meyrick, 1889

Li, Houhun, 2017, Review of the genus Termioptycha Meyrick, 1889 (Lepidoptera, Pyralidae) from China, with descriptions of four new species, Zootaxa 4329 (2), pp. 159-174 : 160

publication ID	https://doi.org/ 10.11646/zootaxa.4329.2.3
publication LSID	lsid:zoobank.org:pub:643F6A17-Abee-44Cd-B078-A1Cd2B73E55A
DOI	https://doi.org/10.5281/zenodo.6041659
persistent identifier	https://treatment.plazi.org/id/03EC87E4-FFDB-FFA3-CCF9-1B4EFD55EBFB
treatment provided by	Plazi
scientific name	Termioptycha Meyrick, 1889
status

Treatment

Termioptycha Meyrick, 1889 View in CoL

Termioptycha Meyrick, 1889: 504 View in CoL . Type species: Termioptycha cyanopa Meyrick, 1889 View in CoL [= Ethnistis eucarta Felder & Rogenhofer, 1875 View in CoL ].

Sialocyttara Turner, 1913: 134 View in CoL . Type species: Sialocyttara erasta Turner, 1913 View in CoL .

Generic characters. Medium to large size. Head ( Figs 1–2 View FIGURES 1 – 3 ): Labial palpus upturned, exceeding vertex apically; first segment slightly thicker than second, second segment with long hair-like scales on inner side (except T. bilineata View in CoL ), third segment with hair-like scales on ventral surface. Maxillary palpus short and compressed in both male and female (but long brush-like in male of T. bilineata View in CoL ). Antenna with scape expanded, without scape extension; flagellum ciliated on ventral surface in male. Forewing ( Figs 4–13 View FIGURES 4 – 13 ) usually with a rectangular patch at middle of costal margin; discal and discocellular spots represented by a tuft, cell with a tuft at middle on lower margin; antemedian and postmedian lines present; evenly spaced spots along inner side of terminal line. Wing venation ( Fig. 3 View FIGURES 1 – 3 ): Forewing with R3, R4 and R5 stalked, M1 from upper angle of cell, M2 and M3 stalked, CuA1 from lower angle of cell; hindwing with Rs and M1 from upper angle of cell, M2 and M3 stalked, CuA1 approximated to M2+3. Mid and hind tibiae with long hair-like scales on outer side.

Male genitalia ( Figs 14–23 View FIGURES 14 – 19 View FIGURES 20 – 23 ). Uncus sub-rectangular, slightly concave at middle or bifurcate on posterior margin. Gnathos narrowly banded, medially arched backward or produced into a process; with a process from base of each arm produced downward in most species, covered with thick and short setae. Valva rhomboid, usually with a process at base; costa with a tuber or a process at middle in some species, with a spine at apex (easily broken); sacculus developed. Saccus broad, usually triangular. Aedeagus with a single cornutus or cornuti composed of a bunch of spines in most species.

Female genitalia ( Figs 24–28 View FIGURES 24 – 28 ). Eighth segment rectangular. Antrum developed. Ductus bursae membranous and wide. Corpus bursae usually ovate; two signa often different in size, with dense denticles.

Diagnosis. Termioptycha is diagnostic in the male genitalia by having an apical spine on the costa. Termioptycha is similar to Teliphasa Moore, 1888 by the presence of both discal and discocellular spots which are formed by a scale tuft, a postmedian line curved outward and forming an angle medially, and spots evenly arranged along inner side of terminal line. Termioptycha can be distinguished from Teliphasa by the forewing with a rectangular patch at middle on the costal margin, and the hindwing without a discocellular spot; in Teliphasa , the forewing has no rectangular patch at middle on the costal margin, and the hindwing has a discocellular spot. Termioptycha can also be separated from Teliphasa in the male genitalia by the sub-rectangular uncus, the rhomboid valva and the costa with an apical spine; in Teliphasa , the semicircular uncus is undeveloped, the valva is sub-rounded and the costa lacks an apical spine.