Carinostigmus rugipunctatus Bashir & Ma, 2021

Bashir, Nawaz Haider, Li, Qiang & Ma, Li, 2021, Four new species of the genus Carinostigmus Tsuneki (Hymenoptera, Apoidea, Crabronidae) from Oriental China, with an updated key to the Chinese species, Journal of Hymenoptera Research 81, pp. 87-107 : 87

publication ID

https://dx.doi.org/10.3897/jhr.81.61892

publication LSID

lsid:zoobank.org:pub:6983B007-E436-4C51-B938-D2C00685139F

persistent identifier

https://treatment.plazi.org/id/6C5145C9-D153-4163-9878-7C9B24886E0A

taxon LSID

lsid:zoobank.org:act:6C5145C9-D153-4163-9878-7C9B24886E0A

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Carinostigmus rugipunctatus Bashir & Ma
status

sp. nov.

Carinostigmus rugipunctatus Bashir & Ma sp. nov.

Figs 4 View Figure 4 , 6D, E View Figure 6

Type material.

Holotype: ♀, China: Yunnan: Jinghong: Xishuangbanna National Forest Park, 22°01'N, 100°52'E, 31.VII.2003, 600-1000 m, coll. Qiang Li (YNAU). Paratypes: 6♀8♂, same locality and date as holotype, coll. Tingjing Li, Peng Wang (ZJU); 1♂, China: Yunnan: Lincang, 23°53'N, 100°05'E, 3.V.2005, coll. Baoxin Dong; 1♂, China: Yunnan: Ruili, 24°01'N, 97°51'E, 29.IV.1981, coll. Junhua He (YNAU).

Diagnosis.

This new species can be separated from all other Carinostigmus species from China by the following character combinations: mandible reddish brown basally; legs largely fulvous; labrum truncate apically; free margin of median lobe of clypeus broadly produced; median frons rugulose; occipital carina broad, without foveolate; lateral angles of pronotal collar not projected; metanotum smooth medially; propodeum with large smooth area medially; petiole dorsal with irregularly weak rugae basally; pygidial area depressed. It is closely related to C. congruus ( Walker) 1860, but differs from it in the following characters (states of C. congruus in brackets): inter-antennal tubercle without T-shape at apex (inter-antennal tubercle with T-shaped at apex); inner orbital furrow inconspicuously foveolate (inner orbital furrow distinctly foveolate); pronotal ridge strongly marked (pronotal ridge weakly marked), slightly emarginate in middle (not emarginate in middle); occipital carina broad as Fig. 4B View Figure 4 (occipital carina narrow as Fig. 3B View Figure 3 ); lower gena with dense, sturdy, longitudinal rugae medially (lower gena without rugae medially); notaulus inconspicuously grooved, extending to one third of scutum length (notaulus strongly impressed, extending to anterior ¼ of scutum length); propodeum with smaller smooth area than C. congruus ; petiole dorsal with few irregularly weak rugae basally (petiole dorsal without rugae); petiole laterally smooth (petiole laterally with a few weak carinae or smooth) and pygidial area u-shaped (pygidial area oval shaped).

Description.

Female (Figs 4A-C, F, G, I, K-P View Figure 4 , 6D View Figure 6 ): length of body 5.4 [5.2-5.5] mm.

Colouration.

Body black and shiny, except for the following: mandible (reddish brown basally and apically), labrum, palpi, scape, pedicel, flagellomere I-III (remainder dark brown) and tegula fulvous; pronotal lobe ivory; forewing veins dark brown; fore trochanter, base and apex of femur, tibia, tarsi yellowish to fulvous (remainder dark brown); mid trochanter, base and apex of femur, tibia extensively, tarsi fulvous (remainder dark brown); hind trochanter, basal one third of tibia fulvous (remainder dark brown); setae on mandible and margin of clypeus golden.

Head (Fig. 4A-C, F View Figure 4 ). Mandible tridentate apically; labrum pentagonal, truncate apically; clypeus moderately convex, with sparse, fine mixed with coarse punctures; free margin of median lobe of clypeus broadly produced and emarginate apically, with four teeth, median teeth distinct, subquadrate, slightly turnup, lateral teeth small, inconspicuous [sometimes lacking] (Fig. 4A View Figure 4 ); setae on mandible and margin of clypeus sparse, long, more than labrum length; median and lower frons coriaceous, rugulose on median frons, with broad, shallow frontal median furrow, a sturdy frontal median longitudinal carina, inter-antennal tubercle short, less than midocellus diameter; upper frons with sparse, fine punctures, longitudinal carina distinct anteriorly, not reaching anterior ocellus (Fig. 4A View Figure 4 ); ocellar triangle area slightly convex, several finely punctate; vertex behind ocelli with sparsely finely punctate (Fig. 4B View Figure 4 ); gena with dense, slender, long, oblique transverse rugae (Fig. 4F View Figure 4 ); lower gena with coarse, dense punctures mixed with dense, sturdy, longitudinal rugae medially (Fig. 4C View Figure 4 ); occipital carina broad, without foveolate (Fig. 4B View Figure 4 ); inner orbital furrow broad, with inner marginal carina distinct, inconspicuously foveolate (Fig. 4A View Figure 4 ); outer orbital furrow narrow, hind marginal carina distinct, finely foveolate (Fig. 4F View Figure 4 ); length of scape: length of pedicel: length of flagellomere I: width of flagellomere I = 21: 7: 9: 3; maximum head width, dorsally: distance from upper margin of the frons to occipital carina in middle: distance from vertex to clypeal margin in middle = 70: 45: 61; maximum eye length, laterally: maximum eye width, laterally: maximum eye width, frontal view = 47: 25: 20; inner-orbital width, medially: outer-orbital width, medially: occipital carina width, dorsally = 3: 3: 1; maximum width of gena, laterally: distance between antennal sockets, frontal view = 13: 9; distance between inner margins of hind ocelli: distance between outer margin of hind ocellus and nearest inner eye margin: distance between posterior margin of hind ocellus and occipital carina, dorsally = 6: 14: 19.

Mesosoma (Fig. 4G, I, K, L View Figure 4 ). Pronotal collar moderately elevated medially, anterior pronotal ridge strong, lateral angles blunt and not projected (Fig. 4G View Figure 4 ); width of collar in middle: length of collar in middle = 5: 35; mesoscutum with fine, sparsed mixed with sparse, coarse punctures, with several, slender, transverse striations anteriorly [striations sometimes lacking] (Fig. 4L View Figure 4 ), posterior area with sparse, strong parallel ridges (Fig. 4G View Figure 4 ); admedian line inconspicuous, extending to one third of scutum length; notaulus inconspicuously grooved, extending to one third of scutum length (Fig. 4L View Figure 4 ); parapsidal line weakly impressed; scutellum with fine, sparse punctures; metanotum with sparse, slender, longitudinal rugae on lateral area, median area smooth (Fig. 4G View Figure 4 ); mesopleuron with coarse, sparsed punctures, hypoepimeral and posterior area with slender or sturdy, dense, long, longitudinal rugae posteriorly; scrobal suture, omaulus and hypersternaulus broad and distinct, foveolate, scrobal suture short, incomplete (Fig. 4I View Figure 4 ); propodeal enclosure shallowly impressed, triangular, with sturdy longitudinal rugae, median area reticulate; propodeum posterior with broad shallow median groove, sparse sturdy, oblique, longitudinal rugae anteriorly, large smooth area medially, and irregular reticulation posteriorly (Fig. 4K View Figure 4 ); propodeum laterally with several, sturdy, oblique, longitudinal rugae anteriorly and medially, and irregular reticulation posteriorly (Fig. 4I View Figure 4 ).

Metasoma (Fig. 4M-P View Figure 4 ). Petiole dorsal slightly convex and widened toward apex slightly, with few irregularly weak rugae basally (Fig. 4N View Figure 4 ), petiole laterally smooth (Fig. 4O View Figure 4 ); maximum width of petiole, dorsally: length of petiole, laterally: maximum length of metasomal tergum I, dorsally: maximum width of metasomal tergum I, dorsally = 8: 50: 32: 37; metasomal sterna IV-VI with dense, fine punctures, remainder nearly impunctate (Fig. 4P View Figure 4 ); pygidial area coriaceous, depressed, u-shaped, apex truncate (Fig. 4M View Figure 4 ).

Male (Figs 4D, E, H, J View Figure 4 , 6E View Figure 6 ). Similar to female except length of body 5-5.4 mm; labrum and palpi yellowish; tegula dark brown; setae on mandible and margin of clypeus silvery and yellowish, respectively; mandible bidentate apically; labrum subquadrate; clypeus slightly convex, with dense, fine punctures; free margin of clypeus slightly emarginate medially; occipital carina broader than female, distinctly foveolate; length of scape: length of pedicel = 19: 8; maximum head width, dorsally: distance from upper margin of the frons to occipital carina in middle: distance from vertex to clypeal margin in middle = 65: 40: 53; maximum eye length, laterally: maximum eye width, laterally: maximum eye width, frontal view = 43: 28: 21; maximum width of gena, laterally: distance between antennal sockets, frontal view = 11: 7; distance between inner margins of hind ocelli: distance between outer margin of hind ocellus and nearest inner eye margin: distance between posterior margin of hind ocellus and occipital carina, dorsally = 7: 11: 12; width of collar in middle: length of collar in middle = 5: 30; maximum width of petiole, dorsally: length of petiole, laterally: maximum length of metasomal tergum I, dorsally: maximum width of metasomal tergum I, dorsally = 7: 50: 28: 27; metasomal sterna III-VI with sparse, fine punctures, remaining nearly impunctate.

Distribution.

China (Yunnan).

Etymology.

The name, Carinostigmus rugipunctatus , is derived from the Latin words ruga (= ruga, wrinkle) and punctum (= puncture), referring to the lower gena with coarse punctures mixed with rugae.