Craspedolcus maculithorax Li & He & Chen 2020, sp. nov.

Craspedolcus maculithorax sp. nov.

Figs 21–22

Type material. Holotype. ♀, China, Fujian Prov., Huanggangshanlu, 17.VII.1985, Wang Jiashe, No. 854448 (ZJUH).

Diagnosis. This new species is very similar to C. fraternus Enderlein, 1920, but can be separated from the latter by the following characters: mesoscutum yellow and with 3 black spots (entirely yellowish brown in C. fraternus, without black spots); propodeum and metasomal tergites entirely black (yellowish brown or brown); stigmal spot large, intruding into cells of fore wing below parastigma (spot not or hardly intruding into first discal cell of fore wing); apical brown area of fore wing large, intruding into second submarginal cell (smaller, not or hardly intruding into second submarginal cell); median area of first tergite largely longitudinally striate (medial area smooth except for low median carina and few striae); ovipositor sheath 0.5–0.6 × as long as fore wing and body (0.8–1.0 × as long as fore wing and body).

Description. Holotype, ♀, length of body 12.8 mm, of fore wing 14.1 mm, of ovipositor sheath 7.8 mm.

Head. Antenna incomplete, remaining part with 68 antennomeres; scapus slender, parallel-sided and distinctly protruding ventro-apically, with narrow indistinct apical ledge at inner side and basally gradually narrowed, its ventral setae erect (Fig. 22l); first and second flagellomeres 1.3 and 1.0 × their maximum width, respectively; length of maxillary palp 0.9 × height of head; eye weakly emarginate (Fig. 22g); face weakly and evenly convex, remotely finely punctate and with long erect yellowish setae (Fig. 22g); clypeus flat, superficially rugulose, dorsally with weak carina and ventral margin thin and lamelliform protruding, with a row of long yellowish setae ventrally; hypoclypeal depression 0.4 × as wide as minimum width of face (Fig. 22g); frons shallowly concave behind antennal sockets, with deep median groove, smooth except for a few punctures laterally (Fig. 22h); vertex smooth except for few punctures and weakly convex, largely glabrous; shortest distance between posterior ocelli: shortest diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 10: 4: 3; in dorsal view length of eye 1.5 × temple; temples weakly narrowed behind eyes, with spaced setiferous punctures and long setae (Fig. 22h); malar suture present and curved; length of malar space 0.8 × basal width of mandible; mandible twisted and with two wide teeth.

Mesosoma. Length of mesosoma 1.6 × its height (Fig. 22c); side of pronotum shiny and smooth; propleuron with spaced punctures; pronotum vertical anteriorly and with a shallow groove and no antescutal depression; mesopleuron largely smooth and glabrous, anteriorly weakly punctate and sparsely setose; mesosternal sulcus smooth and narrow; metapleuron weakly punctate and with long setae, convex; mesoscutum glabrous except some setae near notaulic courses, shiny and smooth; notauli shallowly impressed, smooth; scutellar sulcus present and with distinct crenulae (Fig. 22d); scutellum nearly flat anteriorly and smooth; side of scutellum smooth; metanotum medio-anteriorly with short carina, posteriorly evenly convex and smooth (Fig. 22d); propodeum smooth, with many long setae and evenly convex medially, medio-apically smooth in lateral view (Fig. 22j).

Wings. Fore wing (Fig. 22a): m-cu 0.8 × as long as 1-M; 1-SR+M sharply angled after arising from 1-M, 1.6 × as long as 1-M; 3-SR weakly curved, and SR1 straight; r: 3-SR: SR1 = 3: 16: 18; 2-SR: 3-SR: r-m = 12: 32: 13; r-m largely sclerotised; 1-CU1 widened and 0.1 × 2-CU1; cu-a vertical and weakly postfurcal; CU1b narrower than 3-CU1. Hind wing (Fig. 22b): with 3 coarse subbasal bristles on C+SC+R and with 3 hamuli on R1; SR weakly curved basally and marginal cell parallel-sided apically; subbasal cell near cu-a setose; 1r-m straight and 0.9 × as long as SC+R1; 2-SC+R 1.2 × longer than wide.

Legs. Tarsal claws simple and with long bristly setae ventrally; fore tarsus 1.4 × as long as fore tibia and tibia bristly setose and pimply anteriorly; length of femur, tibia and basitarsus of hind leg 3.6, 9.0 and 5.2 × their maximum width, respectively; hind tibia with dense appressed setae (Fig. 22f); hind tibial spurs 0.3 and 0.4 × as long as hind basitarsus; inner side of hind tibia and tarsus densely bristly setose.

Metasoma. Length of first tergite 1.3 × its apical width, medial area low anteriorly, dorso-lateral carinae strongly developed, medial area with median carina and longitudinal striae (Fig. 22j); second tergite largely smooth (including deep oblique anterior grooves) but median carina connected to nearly rhombical medio-basal area and some crenulae near medio-basal area and outer side of antero-lateral triangular areas (Fig. 22e); second metasomal suture strongly crenulate, laterally narrowed and oblique; medially second tergite longer than third tergite (Fig. 22e); maximum width of third tergite 4.3 × its medial length; third–fifth tergites largely smooth and with smooth antero-lateral grooves and weakly crenulate transverse subposterior groove (fifth tergite smooth) (Fig. 22e); ovipositor sheath 0.55 × as long as fore wing and 0.61 × body; hypopygium just surpassing apex of metasoma.

Colour. Largely black (Fig. 21); head largely yellow, antenna (including entire scapus), eye and mandible apically black, stemmaticum yellowish brown (Figs 22g, 22h); pronotum, propleuron, middle lobe of mesoscutum posteriorly, notaulic courses, scutellum and metanotum yellowish brown (Figs 22c, 22d); legs largely yellow, claws dark brown, hind coxa, trochanter and femur (except for apically yellow) black (Fig. 22f); apical 0.2 of pterostigma dark brown, remainder of pterostigma and wing membrane yellow, but fore wing with irregular stigmal spot up to vein CU1b, including dark brown veins 1-SR, 1-SR+M, m-cu, 3-CU1 and CU1b and apically wings with wide infuscate area (hind wing including posterior area); remainder of veins brownish yellow (Figs 22a, 22b).

Biology. Unknown.

Distribution. China (Fujian).

Etymology. Named after the black spots of the mesoscutum: “macula” is Latin for “spot” and “thorax” is Greek for “chest”.