Microplitis similis Lyle

Ranjith, A. P., Rajesh, K. M. & Nasser, M., 2015, Taxonomic studies on Oriental Microplitis Foerster (Hymenoptera: Braconidae, Microgastrinae) with description of two new species from South India, Zootaxa 3963 (3), pp. 369-415: 404-406

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Microplitis similis Lyle


Microplitis similis Lyle 

Microplitis similis Lyle 1921: 129  ; Dutt 1921: 157; Ayyar 1924: 359; Wilkinson 1930: 26; Beeson & Chatterjee 1935: 132; Beeson 1941: 372; Thompson 1953: 163. Holotype BMNH.

Materials examined. Types. Cotype ♂, No collection data except 16.iii. 1914, Microplitis similis Lyle  “Parasitic on Agrotis ipsilon  , 1921 - 140 ( BMNH).

Other specimens examined. 1 ♂ Indonesia, N, Sumatra, 14.iv. 1992, Tj. Morawa, ex. Spodoptera litura  on Soybean, Hvd B 0 2 IIE 22405View Materials Hvd B 92 /02, pres by Int. Inst. Ent. BM 1992 - 1, Microplitis similis Lyle  det. A.K. Walker, 1992 ( BMNH); 1 ♀ India, Bihar, 1962, 49 18761, “ Microplitis similis Lyle, G.E.J. Nixon  det. 1963 ( BMNH); India, Kerala, Changanassery, N 09° 46 ’ 67 ” E 76 ° 55 ’ 00”, 26.i. 2013, sweep net, coll. Ranjith ( DZUC).

Female. Body length 1.8 mm (based on examined specimens).

Head: Subcircular, 1.1 × as wide as long in anterior view ( Fig. 18View FIGURE 18 -B); lateral temples slightly visible in anterior view ( Fig. 18View FIGURE 18 -B); width of face (at widest) 0.5 × width of head; face slightly convex, rugulose, glabrous, 1.7 × as wide as long ( Fig. 18View FIGURE 18 -B); lateral temples slightly rugose, pilose; vertex, dorsal occiput slightly rugose, setose ( Fig. 17View FIGURE 17 -C); occiput concave; frons rugulose setose laterally, area between antennal sockets without distinct carinate longitudinal ridge; eyes setose; POL 1.5 × OOL ( Fig. 17View FIGURE 17 -C); ocelli forming an obtuse triangle; antennae 1.2 × as long as body; first flagellomere 1.2 × as long as second flagellomere; first and second flagellomere 2.6, 2.2 × as long as wide; terminal flagellomere acute, 2.4 × as long as wide.

Mesosoma: Mesosoma 1.3 × as long as high; mesoscutum rugulose, sparsely setose ( Fig. 17View FIGURE 17 -C); notauli faintly indicated by slight shallow depression not separated by medial longitudinal carina ( Fig. 17View FIGURE 17 -C); medial furrow absent; scutellar lunules widest medially divided by six carinae ( Fig. 17View FIGURE 17 -C); area lateral to scutellar lunules flat; dorsal scutellum convex, with fine punctuation, setose, with marginal carinate groove laterally; propodeum with percurrent medial longitudinal carina and transverse carina at the basal half, rest coarsely rugose ( Fig. 17View FIGURE 17 -D); lateral pronotum with oblique crenulate furrow; mesopleuron pilose anteriorly, smooth and glabrous posteromedially; epicnemal area setose, with deep crenulate epicnemal furrow reaching to anterior margin of mesopleuron; precoxal groove shallow, crenulate; hind coxa mostly smooth, except for micropunctures with setae; hind femur 3.5 × as long as wide; hind tibia 6.7 × as long as wide; outer hind tibial spur 0.3 × as long as basitarsus.

Wings: Fore wing 2.7 × as long as wide ( Fig. 17View FIGURE 17 -F & Fig. 18View FIGURE 18 -D); pterostigma 2.3 × as long as wide; areolet large, quadrangular ( Fig. 17View FIGURE 17 -F); 1 -M straight; margin of vannal lobe convex and setose ( Fig. 17View FIGURE 17 -D).

Metasoma: T 1 2.1 × as long as wide, smooth with medial shallow groove, parallel sided, widest apically and rounded apically ( Fig. 17View FIGURE 17 -D & E); T 2 with median field ( Fig. 17View FIGURE 17 -B); T 2 –T 7 smooth, with sparse transverse row of fine setae posteriorly ( Fig. 17View FIGURE 17 -B); ovipositor 0.3 × as long as hind basitarsus.

Colour: Body generally black except scape brownish black, flagellomeres brownish, maxillary palps yellow, pterostigma brownish, venation yellowish brown, legs brownish, metasoma mostly reddish brown except T 1 brownish.

Male: Same as female except antennae 1.4 × as long as body.

Distribution. Bangladesh, India (Bihar and Kerala), Indonesia and Vietnam.

Host. Agrotis ypsilon Linn. 

Discussion. This species is close to M. demolitor  in having the propodeum coarsely rugose with distinct medial longitudinal carina, scutellum micropunctured, presence of longitudinal carina between antennal sockets and hind coxa smooth basally. It differs from M. demolitor  in the following characters: notauli impressed (in M. demolitor  notauli faintly indicated), T 1 parallel sided with medial longitudinal groove (in M. demolitor  T 1 sub parallel sided without medial longitudinal groove), T 2 with median field (in M. demolitor  T 2 without median field), face 1.7 × as wide as long (in M. demolitor  face 1.5 × as wide as long), POL 1.5 × OOL (in M. demolitor  POL 1.5 × OOL), fore wing vein 1 -M straight (in M. demolitor  1 -M slightly arched throughout).

Comments. We could not examine the holotype and the above description is based on the examined material.


Departamento de Zoologia da Universidade de Coimbra














Microplitis similis Lyle

Ranjith, A. P., Rajesh, K. M. & Nasser, M. 2015

Microplitis similis

Thompson 1953: 163
Beeson 1941: 372
Beeson 1935: 132
Wilkinson 1930: 26
Ayyar 1924: 359
Lyle 1921: 129
Dutt 1921: 157