Three new species of Conostigmus from China and redescription of Conostigmus ampullaceus Dessart, 1997 (Hymenoptera, Megaspilidae) Author Wang, Xu 0000-0001-6465-4052 Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui 241000, China & Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100000, China Author Cui, Shanshan https://orcid.org/0009-0000-0078-0674 Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui 241000, China Author Li, Fang https://orcid.org/0009-0004-9269-7200 Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui 241000, China Author Huang, Yixin 0000-0002-7885-321X Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100000, China & Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui 241000, China Author Chen, Huayan 0000-0002-0382-1635 Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, Anhui 241000, China text Journal of Hymenoptera Research 2024 2024-10-08 97 807 824 journal article 304365 10.3897/jhr.97.126202 700547f0-1635-40de-9b18-163a709b28e9 02DEAD07-723D-4000-90CD-3054B09665F3 Conostigmus acutus Wang & Chen sp. nov. Material examined. Holotype : ( AHNU ) • male China : Shanxi , Lishan National Nature Reserve , Dahe Protection Station , Malaise traps , 22–26. VIII. 2012 , Yajun You , SCAU 3045598 . Paratype : ( SCBG ) • 1 male : same collection information as preceding, SCAU 3045597 . Diagnosis. Head and mesosoma coarsely sculptured, metasoma smooth; randomly sized impressions around setal pits present and larger than scutes; median process on intertorular carina present and acute; mesoscutellum length almost equal to width; sternaulus present and complete; anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex absent; gastral carinae present and reaching 1 / 4 of syntergum length; male S 9 distal setae composing setiferous patches; distal margin of harpe in lateral view acute or straight; Gonossiculus spine count: 2. Description. Male. Body length: 1.5–1.6 mm . Coloration . Colour hue pattern: head and mesosoma black (pronotum and propleuron reddish brown); metasoma brownish black (petiolus reddish brown); mandibles reddish brown and palps yellow; legs yellow; scape yellow; pedicel and F 1 – F 9 brown; pterostigma, costal vein, radial vein and marginal fringes of wings brown; body pubescence yellowish; male genitalia yellowish. Color intensity pattern: scape darker than legs. Head (Fig. 4 D, E ) . Head width, dorsal view: slightly wider than mesosoma (about 1.05 × wider than mesosoma). Head width vs. head height: HW : HH = 1.1–1.2. Head height vs. eye height: HH : EHf = 1.7–1.8. Head height vs. head length: HH : HL = 1.2–1.4. Head width vs. interorbital space: HW : IOS = 1.6–1.7. Lateral ocellar length: ocular ocellar length: LOL : OOL = 0.4–0.5. Lateral ocellar length: posterior ocellar length: LOL : POL = 0.6–0.7. Ocular ocellar length: posterior ocellar length: OOL : POL = 1.3–1.7. Head coarse; randomly sized impressions around setal pits count: present; the size of impressions around the setal pits on the head: impressions larger than scutes; head shape (anterior view): circular or triangular. Preoccipital lunula count: absent. Preoccipital carina count: absent. Preoccipital furrow count: present. Preoccipital furrow anterior end: preoccipital furrow ends inside ocellar triangle, but ends posterior to the anterior ocellus. Occipital carina count: present. Occipital carina structure: complete and crenulate. Postocellar carina count: present. Intertorular area count: present. Intertorular carina count: present. Median process on intertorular carina count: present. Median process on intertorular carina shape: acute. Median region of intertorular area shape: flat. Facial sulcus absent. Facial pit present. Ocellar foveae distinct, and ocellar foveae width equal to ocellus diameter. Figure 4. Conostigmus acutus Wang & Chen , sp. nov. , male, holotype A lateral habitus B dorsal habitus C head and mesosoma, lateral view D head and mesosoma, dorsal view E head, anterior view F wings G metasoma, dorsal view. Antennae (Fig. 4 A ). Scape length vs. pedicel length: 3.8–4.5. Scape length vs. F 1 length: 1.2–1.3. F 1 length vs. pedicel length: 3.1–3.5. Longest male flagellomere: F 1 . F 1 length vs. F 2 length: 1.0–1.2. F 3 length almost equal to F 4. F 7 length almost equal to F 8. Length of pubescence on flagellomere vs. flagellomere width: flagellomeres width about twice than pubescence length. Mesosoma (Fig. 4 C, D ). Mesosoma roughness and slightly narrow (1.3 × longer than wide) (Length / width / height = 512 / 393 / 359 μm). AscW / PscW = 0.8–0.9. Mesoscutum 1.8 × wider than long (Length / width = 222 / 393 μm). Transscutal articulation evident. Notaulus count: present and complete. Notaulus posterior end: adjacent to transscutal articulation, posterior end of notaulus contracted but not adjacent to median mesoscutal sulcus. Median mesoscutal sulcus count: present and complete. Median mesoscutal sulcus posterior end: adjacent to transscutal articulation. Scutoscutellar sulcus count: present. Scutoscutellar sulcus vs. transscutal articulation location: adjacent. Scutoscutellar sulcus shape: scutoscutellar sulcus angled medially, foveolate. Mesoscutellum length almost equal to width, limited by a u-shaped carina. Sternaulus count: present. Sternaulus shape: elongate and complete. Mesopleural sulcus shape: straight. Pleural pit present. Lateral propodeal carina shape: inverted “ Y ”. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex absent. Wings (Fig. 4 F ). Forewing length: 1.1–1.4 mm , translucent. Forewing macropterous with apex extending past petiole. Forewing with translucent stripes and dense pubescence. Pterostigma semi-circular, length vs. width: 2.1–3.2. Radius (200 μm), a little curved in the middle, longer (1.4 ×) than pterostigma. Hind wing without vein. Metasoma (Fig. 4 G ). Metasoma 1.6 × longer than wide (Length / width / height = 647 / 408 / 357 μm). Transverse carina on petiole shape: concave. Syntergum smooth, longer (1.1 ×) than wide. Gastral carinae present and reaching 1 / 4 of syntergum length. Syntergal translucent patch count: present. Syntergal translucent patch shape: long rod-shaped. Rest of tergites smooth, but with sparse hairs. Male genitalia (Fig. 5 ). Distal margin of male S 9 shape: convex. Proximolateral corner of male S 9 shape: blunt. Male S 9 distal setal line / setal patch count: distal setae composing setiferous patch or patches; distal setae composing transverse setiferous line or lines. Submedial projections on proximal margin of S 9 count: absent. Harpe shape: acute triangle. Distal margin of harpe shape: shrinking to an much acute angle. Distal margin of harpe in lateral view: acute or straight. Harpe orientation: dorsomedial. Harpe length: harpe shorter than gonostipes in lateral view. Lateral setae of harpe count: present. Lateral setae of harpe orientation: oriented distally. Dense patch of setae on the distoventral edge of the harpe count: absent. Parossiculus count or parossiculus and gonostipes fusion: present and parossiculi not fused with the gonostipes. Gonossiculus and gonossiculus spine present. Gonossiculus spine count: 2. Gonossiculus spine length: one spine more than 2 × as long as the other (s). Penisvalva curved proximally. Figure 5. Conostigmus acutus Wang & Chen , sp. nov. , male, holotype, genitalia A ventral view B dorsal view C lateral view D S 9 . Distribution. China ( Shanxi ). Biology. Unknown. Etymology. Consistent with the genus name, the species name is a Latin masculine adjective meaning “ mucronate ”, indicating a male mucronate harpe.