van AchterbergCornelisLongKhuat DangRevision of the Agathidinae (Hymenoptera, Braconidae) of Vietnam, with the description of forty-two new species and three new generaZookeys0992010201054118410.3897/zookeys.54.475 Coccygidium de Saussure, 1892Notes.

Prior to Sharkey et al (2009) the Old World species were included in the New World genus Zelomorpha Ashmead, 1900 or the Old World genus Coccygidium de Saussure, 1892. Most Oriental species belong to the Zelodia gen. n., but some Oriental species and most species in the Afrotropical and Australian regions belong here. Including Disophrys concolor Szépligeti, 1908 from Sundaland and possibly Sri Lanka; the type species of the genus Amputostypos Sharkey, 2009. The lectotype of Disophrys concolor (designated by van Achterberg 1974) has been examined and it has the fore spur with a long curved and glabrous apical spine as figured in the key (a) for Coccygidium. Therefore, Amputostypos Sharkey is synonymised with Coccygidium de Saussure (syn. n.). From the north-eastern Oriental region only two species of Coccygidium de Saussure are known: Coccygidium sissoo (Wilkinson, 1929) comb. n. [a senior synonym of Zelomorpha amplarga Gupta & Bhat, 1972, synonymy according to Bhat (1978)] and Coccygidium angostura (Bhat & Gupta, 1977). In Vietnam only the last species was found.

van AchterbergCornelisLongKhuat DangRevision of the Agathidinae (Hymenoptera, Braconidae) of Vietnam, with the description of forty-two new species and three new generaZookeys0992010201054118410.3897/zookeys.54.475 Coccygidium angostura (Bhat & Gupta, 1977)Figs 100–102Distribution.

NE Vietnam: Hoa Binh. New to Vietnam. New record. Outside Vietnam known from China (Anhui; Fujian; Guangdong; Hainan Island; Henan; Hubei; Jiangxi; Sichuan; Yunnan; Zhejiang).

Coccygidium angostura (Bhat & Gupta), male, Yen Thuy. 100 habitus lateral 101 head dorsal 102 head anterior.

Note.

Length of inner spur of middle tibia varies from 0.8–1.1 times length of middle basitarsus and vein cu-a of fore wing is distinctly antefurcal or subinterstitial.

van AchterbergCornelisLongKhuat DangRevision of the Agathidinae (Hymenoptera, Braconidae) of Vietnam, with the description of forty-two new species and three new generaZookeys0992010201054118410.3897/zookeys.54.475 Coronagathis urn:lsid:zoobank.org:act:F1039ED0-91FA-48AA-8C20-5A2309C20D6B gen. n.Type species.

Coronagathis cornifera sp. n.

Etymology.

Combination of “corona” (Latin for “crown”) and the generic name Agathis Latreille because of the protuberances of the scutellum and the axillae. Gender: feminine.

Diagnosis.

Apex of antenna without spine; malar space somewhat protruding posteriorly (Fig. 109); area between antennal sockets with a pair of lamelliform crests (Figs 104, 105); frons with lateral carinae running to posterior ocelli; area behind antennal sockets rather deep and outer rim of antennal socket protruding; outer aspect of scapus sparsely punctulate and convex; malar suture absent; notauli complete and crenulate (Fig. 110); scutellum with pair of large horns and axillae protruding, wing-like (Figs 106, 110); second submarginal cell of fore wing rectangular and with an obsolete ramellus (Fig. 109); vein M+CU of hind wing about half as long as vein 1-M; hind wing with 2 + 4 hamuli; subbasal cell of hind wing narrower than plical lobe (Fig. 109); fore tarsal claws bifurcate, the inner tooth nearly as large as the outer tooth; outer face of middle tibia with one lateral and one apical peg; inner spur of middle tibia about 0.6 times as long as middle basitarsus; ventral carina of hind trochantellus weakly developed; inner and outer hind claw bifurcate, with a medium-sized subapical inner tooth; hind coxa enlarged and coarsely sculptured; first metasomal tergite smooth and depressed behind spiracles (Fig. 107); length of ovipositor sheath unknown, but probably about as long as apical height of metasoma or less.

Phylogenetic position.

Putative synapomorphous character states of the new genus Coronagathis are the horns of the scutellum, the wing-like axillae and the coarsely sculptured and elongate hind coxa, surpassing the apex of the first tergite. Its position is uncertain, but seems to be betweenthe genus Disophrys Foerster and the Coccygidium complex. Similar to Disophrys because of the carinae of the frons (present and running to the lateral ocelli) and the elongate hind leg. However, the derived character state of the short vein M+CU of the hind wing indicates that it belongs to the more derived group consisting of the Coccygidium complex and the genus Euagathis Szépligeti. The new genus lacks the synapomorphies of the Coccygidium complex as the apical antennal spine and the long inner spur of the middle tibia. It cannot be included in Euagathis, because Euagathis is characterised by the derived character state of the absent lateral carinae of the frons. The genus Hypsostypos Baltazar from Sulawesi and Sundaland is similar, but Hypsostypos has several autapomorphies. For example, the long impressed malar suture, the reduced notauli and the enlarged lamelliform antennal sockets.

Distribution.

Vietnam.

Biology.

Unknown.

van AchterbergCornelisLongKhuat DangRevision of the Agathidinae (Hymenoptera, Braconidae) of Vietnam, with the description of forty-two new species and three new generaZookeys0992010201054118410.3897/zookeys.54.475 Coronagathis cornifera urn:lsid:zoobank.org:act:D600224D-4DD1-4C8F-860A-6F4FD57F02BB sp. n.Figs 103–110Type material.

Holotype, ♂ (RMNH), “N.W. Vietnam: Tonkin, Hoang Lien N.P., 10 km, SW Sa Pa, c. 1550 m, 22–29.x.1999, Malaise traps, C. van Achterberg & R. de Vries, RMNH’99”.

Diagnosis.

Except for the aberrant scutellum and axillae it may be confused with aberrant species of the genus Disophrys Foerster because of the carinae of the frons (present and running to the lateral ocelli), the more or less angulate hind trochantellus and the elongate hind leg. However, it is separated from Disophrys by the size of the subbasal cell of the hind wing (narrower than plical lobe (Fig. 109; about as wide as plical lobe in Disophrys) and the short vein M+CU of the hind wing (distinctly shorter than vein 1-M versus at least subequal in Disophrys). Superficially similar to the genus Euagathis Szépligeti, but the scutellum bears a pair of large horns (Fig. 110; absent in Euagathis), the frons has lateral carinae (Fig. 105; absent in Euagathis), the hind trochantellus is more or less angulate ventrally (rounded ventrally in Euagathis) and the subbasal cell of the hind wing is narrower than the plical lobe (Fig. 109; subequal in Euagathis).

Description.

Holotype, ♂, length of body 6.3 mm, of fore wing 6.2 mm.

Head.

Antennal segments 47, length of third segment 1.5 times fourth segment, length of third, fourth and penultimate segments 3.2, 2.2 and 1.4 times their width, respectively; length of maxillary palp 0.7 times height of head; head in dorsal view 2.9 times as wide as its median length; in dorsal view length of eye 1.5 times temple; temple nearly straight behind eyes (Fig. 105) and spaced finely punctate; POL:OD:OOL = 10:5:8; clypeus, face and vertex coarsely areolate-punctate; face with long setae; clypeus strongly convex; frons largely smooth, rather deep near antennal sockets, lateral carina running from near antennal socket to posterior ocellus (Fig. 105); pair of crests between antennal sockets lamelliform, strongly protruding, parallel-sided, slightly higher than protruding outer rim of antennal sockets.

Mesosoma.

Length of mesosoma 1.5 times its height without spine; subpronope large and deep, epomial carina strong; side of pronotum shiny smooth anteriorly, upper side largely punctate, crenulate posteriorly; area near lateral carina of mesoscutum wide, strongly crenulate; side of mesoscutum long rugose-punctate; medio-posteriorly impressed, largely crenulate, its middle lobe long, almost parallel-sided laterally, without a pair of shallow grooves or a median carina anteriorly; notauli wide and strongly crenulate (Fig. 110); scutellar sulcus wide and deep with one carina; scutellum areolate-rugose with long setae; subposterior carina evenly curved, wide and raised, forming a pair of strong lateral long horns (Fig. 110); prepectal carina lamelliform; mesopleuron below sulcus largely densely coarsely punctate and above sulcus more spaced punctate; precoxal sulcus wide, rather shallow and strongly crenulate; metapleuron largely coarsely vermiculate-rugose with dense long setae; mesosternal sulcus shallow and narrowly crenulate; propodeum shiny, largely smooth medially, with coarse carinae but without areola, costulae partly present; propodeum with large postero-dorsal tooth-like protuberance (Fig. 108); spiracle rather large, elliptical, close to latero-basal corner of propodeum and twice as long as wide.

Wings.

Fore wing: second submarginal cell quadrate, with an indistinct ramellus (Fig. 109); r:3-SR:SR1 = 4:7:80; 2-SR:3-SR:r-m = 13:7:11; apical half of subbasal cell sparsely setose. Hind wing: M+CU 0.6 times as long as 1-M; no 2-M; surroundings of cu-a glabrous.

Legs.

Hind femur 0.9 times as long as hind tibia; hind tibia distinctly compressed basally and widened apically; length of hind femur, tibia and basitarsus 5.0, 6.0 and 7.0 times their width, respectively; hind femur and tibia largely punctate, but partly pimply, with short setosity; middle tibia with two small pegs; length of outer and inner spurs of middle tibia 0.4 and 0,5 times middle basitarsus, respectively; length of outer and inner spurs of hind tibia 0.4 and 0.6 times hind basitarsus respectively; fore and middle tarsi slender.

Metasoma.

First tergite 2.2 times as long as its apical width, smooth and subparallel-sided apically (Fig. 107); second tergite without a transverse depression and second metasomal suture almost absent.

Colour.

Body black; wing membrane rather dark brown and without a stigmal spot (Fig. 103); mandible, palpi, fore and middle legs (but coxae rather brownish) pale yellow; pterostigma, veins and metasoma largely dark brown.

Distribution.

NW Vietnam: Lao Cai.

Coronagathis cornifera gen. n. sp. n., male, holotype. Habitus lateral.

Coronagathis cornifera gen. n. sp. n., male, holotype. 104 head anterior 105 head dorsal 106 mesosoma dorsal 107 first-third metasomal tergites dorsal 108 mesosoma lateral 109 wings 110 mesoscutum and scutellum dorsal.

Etymology.

From “cornu” (Latin for “horn”), and “fero” (Latin for “carry”), because of the lateral horns of the scutellum.

van AchterbergC (1974) The braconid types of Szépligeti in the Leiden Museum.Entomologische Berichten Amsterdam34:79-80.