Alysia sirin Belokobylskij, 1998

Zhu, Jia-Chen, Achterberg, Cornelis Van & Chen, Xue-Xin, 2018, Review of the genus Alysia Latreille (Hymenoptera, Braconidae, Alysiinae), with description of six new species from China, Zootaxa 4500 (1), pp. 1-42 : 33-35

Alysia sirin Belokobylskij, 1998

Figs 23–24

Alysia sirin Belokobylskij, 1998: 178 .

Material. 1♀ ( ZJUH), “ [NE. China:] Shaanxi, Baoji, Fengxian, Huangniupu , 26.?.2013, Tu Binbin, No. 201308628” .

Diagnosis. Body black ( Fig. 23); eye in dorsal view 2.7 × as long as temple ( Fig. 24I ); eye in lateral view 1.1 × higher than wide ( Fig. 24K ); frons smooth posteriorly, but rugose between antennal sockets ( Fig. 24I ); vertex and temple smooth; face densely granulate, 1.8 × wider than high, rather convex medially and with a longitudinal ridge ( Fig. 24J ); clypeus small, semi-elliptical and with some punctures ( Fig. 24J ); precoxal sulcus widely crenulate, reaching middle coxa and anterior edge of epicnemial area ( Fig. 24B ); notauli incomplete, absent on disc ( Fig. 24C ); surface of propodeum densely reticulate-rugose, areola absent posteriorly ( Fig. 24D ); pterostigma 3.3 × longer than its maximum width ( Fig. 24A ); hind coxa smooth; length of first tergite 2.4 × its apical width, its surface longitudinally striate, its dorsal carinae parallel posteriorly ( Fig. 24D ); setose part of ovipositor sheath 0.38 × as long as fore wing (total visible sheath 0.4 times), and 1.2 × as long as hind tibia ( Fig. 24H ); two basal segments of antenna and mandible yellowish brown; palpi yellow; subapically antenna with 5–10 whitish segments; metasoma (except first tergite black and posterior part of second to six tergites brownish) and legs (except apical part of hind femur, hind tbia and hind tarsus dark brown) yellowish ( Fig. 23).

Description. ♀, Length of body 3.8 mm, of fore wing 3.8 mm.

Head. Transverse, width of head twice its lateral length, and 1.4 × wider than mesoscutum ( Fig. 24I ); antenna with 36 antennomere, third antennomere (including annellus) 1.5 × longer than fourth antennomere, length of third, fourth and penultimate antennomere5.0, 3.5 and 2.0 × their width, respectively ( Fig. 24F ); length of maxillary palp 0.8 × height of head ( Fig. 23); eye in dorsal view 2.7 × as long as temple ( Fig. 24I ); eye in lateral view 1.1 × higher than wide; frons smooth posteriorly, but rugose between antennal sockets ( Fig. 24K ); vertex and temple smooth; OOL:diameter of ocellus:POL= 8:3:3; face densely granulate, 1.8 × wider than high, rather convex medially and with a longitudinal ridge ( Fig. 24J ); clypeus small, semi-elliptical and with some punctures ( Fig. 24J ); mandible enlarged apically, dorsal tooth enlarged, lobe-shaped ( Fig. 24L ), ventral tooth medium-sized and lobe-shaped ( Fig. 24M ), middle tooth curved and acute, with no incision between first and second tooth ( Fig. 24L ), medial length of mandible 1.7 × its maximum width.

Mesosoma. Length of mesosoma 1.4 × its height ( Fig. 24B ); pronope absent; medio-anteriorly pronotum crenulate, remainder of pronotum smooth; epicnemial area crenulated; precoxal sulcus widely crenulate, reaching middle coxa and anterior edge of epicnemial area ( Fig. 24B ); pleural sulcus narrowly crenulated; episternal scrobe linear and deep; metapleuron densely reticulate-rugose; middle lobe of mesoscutum densely setose ( Fig. 24C ); notauli incomplete, absent on disc ( Fig. 24C ); medio-posterior depression deep and droplet-shaped, not extending to middle of mesoscutum, scutellar sulcus deep, with three longitudinal carinae, sulcus 3.0 × wider than its maximum length ( Fig. 24C ); scutellum smooth; surface of propodeum densely reticulate-rugose, areola absent posteriorly ( Fig. 24D ).

Wings ( Fig. 24A ). Pterostigma wide, 3.3 × longer than its maximum width. r:3-SR:SR1 = 5:20:52; 1-SR+M nearly straight; SR1 straight; r 0.4 × as long as width of pterostigma; cu-a postfurcal; 1-CU1:2-CU1 = 3: 20; 3-CU1 as long as CU1b; 2-SR:3-SR:r-m = 9:9:5; m-cu interstitial, converging to 1-M posteriorly; first subdiscal cell 4.0 × as long as wide; M+CU1 largely unsclerotized. Hind wing: M+CU: 1-M: 1r-m = 20:15:13; m-cu antefurcal.

Legs. Hind coxa smooth, without ventro-basal tubercle; tarsal claws slender, longer than arolium ( Fig. 24N ); length of femur, tibia and basitarsus of hind leg 5.0, 9.0 and 6.7 × their width, respectively; apical appendages of hind tarsal segments absent, segments ventrally with dense bristles ( Fig. 24N ).

Metasoma. Length of first tergite 2.4 × its apical width, its surface longitudinally striate, its dorsal carinae parallel posteriorly ( Fig. 24D ); dorsope distinct; convexity of upper valve of ovipositor rather steep basally ( Fig. 24H ); setose part of ovipositor sheath 0.38 × as long as fore wing (total visible sheath 0.4 times), and 1.2 × as long as hind tibia ( Fig. 24H ).

Colour. Black ( Fig. 23); two basal segments of antenna and mandible yellowish brown; palpi yellow; subapically antenna with 5–10 whitish segments ( Fig. 24G ); metasoma and legs yellow, but first tergite black, posterior part of second–sixth tergite brownish, and apical part of hind femur, hind tibia and tarsus dark brown; pterostigma and veins brown; wing membrane hyaline.

Figures

FIGURE 24. Alysia sirin Belokobylskij, ♀, China (Shaanxi), A, wing; B, mesosoma, lateral aspect; C, mesosoma, dorsal aspect; D, propodeum, first and second metasomal tergites, dorsal aspect; E, propodeum and metasoma, dorsal aspect; F, basal segments of antenna, lateral aspect; G, antenna, lateral aspect; H, ovipositor and ovipositor sheath, lateral aspect; I, head, dorsal aspect; J, head, anterior aspect; K, head, lateral aspect; L, mandible, full view on first and second teeth; M, mandible, full view on third tooth N, hind leg, lateral aspect.