Research Article |
Corresponding author: David Smith ( sawfly2@aol.com ) Academic editor: Marko Prous
© 2017 David Smith.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Smith DR (2017) Redescription of Cladiucha insolita Konow (Hymenoptera: Tenthredinidae), description of the male and intraspecific variation. Journal of Hymenoptera Research 60: 173-179. https://doi.org/10.3897/jhr.60.21099
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Cladiucha insolita Konow was described in 1902 from a single female from Vietnam, and this has remained the only recorded specimen. A series from Laos associates the sexes and shows some variation in wing venation, size, and number of antennomeres. The female is redescribed, the male is described for the first time, and intraspecific variation is noted.
sawflies, Allantinae , southeastern Asia
Cladiucha Konow is an unusual tenthredinid genus in that the antennae are multi-antennomered, serrate in the female and biramose in the male, more similar to Diprionidae and some Pergidae rather than the usual filiform, nine-antennomered antennae of Tenthredinidae.
Four species of Cladiucha are known: C. insolita Konow, 1902, C. manglietiae Xiao, 1994, C. magnoliae Xiao, 1994, and C. megatheca Wei, 2010.
Specimens are from the collection of the Oberösterreichische Landesmuseen, Linz, Austria (
The holotype of Cladiucha insolita (Fig.
Images were acquired through an EntoVision micro-imaging system. This system included a Leica M16 with a JVC KY-75U 3-CCD digital video camera or a GT-Vision Lw11057C-SCI digital camera attached that fed image data to a notebook or desktop computer. The program Cartograph 6.6.0 was then used to merge an image series into a single in-focus image.
Cladiucha
insolita
Konow, 1902: 389.—
Female: Length 15–17 mm (holotype, 17 mm). Black, with light purple metallic lustre, with following white: labrum brown to white; apical 3 or 4 antennomeres ventrally; narrow stripe on upper surface of hind coxa; outer surface of apical half of fore femur; inner surfaces of basal two-thirds of mid and hind femora; fore and mid tibiae except for black apex; basal third of hind tibia; fore and midtarsi; small lateral spot on first tergite; small transverse stripe at center of apical tergite; apical margin of apical tergite; cercus brown to white. Wings darkly uniformly infuscated; veins and stigma black. Head: With short, white hairs; rugose to punctate on frons, interantennal area, and clypeus, shiny with scattered punctures on vertex and gena. Antenna (Fig.
Male: Length 10–13 mm. Color as female except hind coxa entirely black; abdomen black; harpe whitish on apical third to half. Similar to female except for antenna and sexual characters. Head: Antenna (Fig.
LAOS: NE Laos, Hua Phan Pr., Mt. Phu Pane, ~1500 m, 20°12'N, 103°59'E, S-Jak1, 1-20.VI.2011 (3 ♀), same except 10-22.V.2011 (2 ♀); Prov. Hua Phan, Phou Pan, Umg. Ort Ban Saleui, 20°13'30"N, 103°59'26"E, 1350-1900 m MSL, 11.V.2011, leg. C. Holzschuh & locals (2 ♀), same except 21.V.2011 (1 ♀), 16.V.2011 (2 ♂), 18.IV.2012 (1 ♀, 1 ♂), 23.IV.2012 (1 ♀); Hua Phan Prov., Ban Salleui; Phou Pan. Mt., 20°13'30"N, 103°59'26"E, 1350-1900 m, 16.V.2011, leg. C. Holzschuh + locals (2 ♂), same except 18.IV.2010 (1 ♀, 1) , 19.IV.2010 (1 ♂), 01.V.2010 (2 ♀, 1 ♂), 13.V.2010 (1 ♂), 08.V.2011 (3 ♀, 1 ♂), 21.V.2011 (1 ♀, 2 ♂), 13.V.2011 (1 ♀, 1 ♂), 07.V.2011 (1 ♀), 15.V.2011 (2 ♂), 19.V.2011 (1 ♂), 24.IV.2010 (1 ♂), 01.V.2011 (1 ♀), 05.V.2011 (1 ♂), 06.V.2011 (1 ♀), 29.IV.2012 (1 ♀). VIETNAM: Holotype female: “Tonkin (Mauson-Gebirge)” (
Laos, Vietnam.
The length of specimens of each sex varies by 2 or 3 mm, the female from 15–17 mm and the male from 10–13 mm. The number of antennomeres in the female varies from 21–23 and in the male 27–29. In the forewing, the portion of vein 2A+3A basal to the anal crossvein is partially atrophied in most specimens (17), but faint to present in several (4). In the hind wing in specimens where visible, cell M is absent in most specimens (14), but present or partially present in others (11), or present in one wing and absent in the other (3).
The holotype was collected in „April, Mai“, consistent with the April and May collection dates of specimens examined.
In existing keys to species of Cladiucha (
Comparison with the figures in Xiao, the male appears closest to C. manglietiae (
The serrate serrulae of the female with about 6 subbasal teeth, is more similar to C. magnoliae (
I thank Martin Schwarz,