Metaurus ramusitis, Song & Liang, 2012
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publication ID |
https://doi.org/ 10.1080/00222933.2012.708456 |
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persistent identifier |
https://treatment.plazi.org/id/202E4201-FFE1-114F-FDAE-FF2CFDDE7607 |
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treatment provided by |
Carolina |
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scientific name |
Metaurus ramusitis |
| status |
sp. nov. |
Metaurus ramusitis View in CoL sp. nov.
( Figures 1B, C, F, G View Figure 1 ; 2 View Figure 2 ; 3 View Figure 3 )
Description
Body length (from apex of cephalic process to tip of forewings): ♂ 13.5 mm, ♀ 14.6 mm; length of head (including two portions: the former is from apex of cephalic process to curved point, the latter is from curved point to posterior margin of eyes): ♂ (0.8 + 1.0) mm, ♀ (0.7 + 1.0) mm; width of head (including eyes): ♂ 1.7 mm, ♀ 1.7 mm; length of forewings: ♂ 10.9 mm, ♀ 12.1 mm.
General colour greenish ochraceous, apical part of cephalic process, a longitudinal spot before eyes on genae, a small anterior spot on lower lateral carina behind eyes on pronotum, apex of hind femora and base of hind tibiae black and shining; two small spots on basal vertex pale black.
Cephalic process in front of eyes strongly upturned (ascending at about 50 ◦), a little shorter than length from curved point to posterior margin of eyes, with ratio about 0.7–0.8: 1 in lateral view ( Figures 1F,G View Figure 1 ; 2B View Figure 2 ). Forewings and hindwings as Figure 3 View Figure 3 (A,B). Hind tarsomeres I with 15–18 and tarsomeres II with 13–16 apical spines.
Male genitalia. Pygofer large and broad, ventrally distinctly wider than dorsally (about 2.1: 1); posterior margin with two obtuse processes near middle in lateral view ( Figure 2E View Figure 2 ), upper process distinctly smaller than lower one. Segment X (anal tube) distinctly short and small, with ratio of the longest length to width near base about 1.1: 1 in dorsal view ( Figure 2G View Figure 2 ); apical ventral margins protruded ventrally into a short small process in lateral view ( Figure 2E View Figure 2 ). Gonostyles large and elongate, apical part distinctly prolonged and curved ventrally, apex with a small obtuse process in lateral view ( Figure 2E,F View Figure 2 ); upper process short, acute apically. Aedeagus large and robust, bases of dorsal and lateral parts and most portion of ventral part on phallobase sclerotized and pigmented, the remainder membranous; dorsal part with a pair of small apical lobes, directed laterally in dorsal view ( Figure 2H View Figure 2 ); lateral apical parts produced in a pair of long lobes, directed posteriorly in lateral view ( Figure 2I View Figure 2 ); ventral part with two pairs of lobes: the inner two very small, directed posteriorly, the outer two distinctly large and elongate, curved anteriorly in ventral view ( Figure 2J View Figure 2 ).
Female genitalia as in generic description ( Figure 3 View Figure 3 C–F).
Material examined
Holotype. ♂, LAOS: Nongtevada , 18 September 1965, J. L. Gressitt ( BPBM).
Paratypes. LAOS: 1♂, Paksong , 20 August 1965, native collector ( BPBM); 1♀ , CHINA: Yunnan, Baishiyan , 10 June 1953 ( IZCAS) .
Etymology
This new species name is derived from the Latin “ ramus ”, refering to its paired branched endosomal processes in aedeagus.
Remarks
The new species is very similar to M. reticulatus Stål , but can be distinguished from the latter by the relatively shorter cephalic process in front of eyes; the forewings with relative fewer netted transverse veins among Sc+R, M and CuA veins on apical twothirds; the segment X of males distinctly short and small, with ratio of the longest length to width near base about 1.1: 1 in dorsal view, apical ventral margins protruded ventrally into a short small process in lateral view; the gonostyles distinctly prolonged and curved ventrally at apical part; and the aedeagus with ventral outer apical lobes curved anteriorly in ventral view.
Distribution
Laos; southwestern China (Yunnan).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.