Calliscelio torqueo Chen & Johnson

Chen, Hua-yan, Masner, Lubomir & Johnson, Norman F., 2017, New World species of the genus Calliscelio Ashmead (Hymenoptera, Platygastridae, Scelioninae), ZooKeys 648, pp. 1-136 : 121-124

Calliscelio torqueo Chen & Johnson sp. n. Figures 262-267

Description.

Body length of female: 1.27-2.54 mm (n=20). Body length of male: 1.39-2.10 mm (n=16). Color of head: black throughout; brown throughout; orange throughout. Color of antennal clava (A7-A12): A7-A10 dark brown, A11 and A12 white to pale yellow. Shape of head: subglobose. Central keel of frons: absent. Setation of upper frons: with sparse, short setae. IOS/EH: IOS distinctly less than EH. Sculpture of ventrolateral frons: smooth to rugulose. Sculpture of frons below median ocellus: smooth. Sculpture of posterior vertex: smooth. Hyperoccipital carina: absent. Occipital carina medially: interrupted. Length of OOL: greater than 0.5 × ocellar diameter. Sculpture of postgena behind outer orbit: smooth. Ocular setae: absent. A4 in female: distinctly longer than A3. A5 in female: shorter than A3, distinctly longer than wide. Shape of female A6: distinctly longer than wide. Form of male antennal flagellomeres: filiform, A11 approximately 4.0 × longer than wide. Length of A5 tyloid in male: approximately 0.3 × length of A5.

Color of mesosoma in female: orange throughout; black throughout; variably orange to pale brown. Color of mesosoma in male: orange throughout; variably orange to pale brown; black throughout. Sculpture of dorsal pronotal area: smooth. Sculpture of lateral pronotal area: smooth throughout. Sculpture of netrion: smooth. Notaulus: percurrent or nearly so. Sculpture of mesoscutum: coriaceous; smooth throughout. Shape of mesoscutellum: semiellipsoidal. Foveolae of scutoscutellar sulcus between notauli: smaller than those along margin of axilla. Sculpture of mesoscutellum: smooth with sparse fine punctures. Shape of metascutellum: posterior margin somewhat rounded, approximately 2.5 × wider than long. Sculpture of metascutellum in female: smooth. Sculpture of metascutellum in male: smooth. Dorsal propodeum in female: not excavate medially, lateral propodeal carinae meeting anteromedially. Sculpture of dorsal propodeum in female: rugose. Sculpture of dorsal propodeum in male: rugose. Median keels on propodeum in female: absent. Mesopleural carina: absent. Sculpture of mesepisternum below mesopleural depression: smooth. Sculpture of ventral metapleural area: smooth. Color of legs: fore coxa pale yellow, otherwise variably yellow to pale brown; coxae pale yellow, otherwise orange. Sculpture of hind coxa: smooth.

Color of fore wing: hyaline. Rs+M: nebulose, weakly pigmented. Setae on R: long, erect, surpassing the margin of the wing. Length of R: approximately as long as r-rs. Length of R1: greater than 3.0 × length of r-rs.

Color of metasoma in female: orange throughout; variably orange to pale brown. Color of metasoma in male: variably orange to pale brown. Horn on T1 in female: weakly developed. Sculpture of T1 horn dorsally: smooth. Sculpture of posterior margin of T1 in female: longitudinally striate throughout. Sculpture of T1 in male: longitudinally striate. Development of longitudinal striae on T2 in female: present on anterior margin of T2 medially, reaching posterior margin of T2 laterally. Sculpture of T3: smooth with longitudinal submedian striae. Shape of T6 in female: short, slightly longer than wide. Sculpture of S3: smooth.

Diagnosis.

This species is most similar to Calliscelio glaber and Calliscelio paraglaber in the smooth head and metascutellum. It can be separated from Calliscelio glaber by its pigmented Rs+M and smooth small horn, from Calliscelio paraglaber by the absence of an occipital carina and T4 is distinctly longer than A3.

Etymology.

The epithet is used as a noun in apposition derived from the Latin word for torch, in reference to female antennal club color.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=384798]

Material examined.

Holotype, female: ECUADOR: Pichincha Prov., 1540m, 00°00'23"N 78°40'36"W, Nanegalito, 27. X– 31.X.1999, flight intercept trap, Z. H. Falin, OSUC 553598 (deposited in CNCI). Paratypes: (218 females, 88 males) COLOMBIA: 36 females, 16 males, OSUC 557420- 557421, 557471- 557472, 557476, 557478- 557479, 557488, 557497, 557502, 557510, 557515, 557518, 557526, 557566, 557608, 557612, 557614- 557616 (CNCI); OSUC 188727- 188728, 188731, 193127, 193692, 202074- 202075, 202079, 202081, 202084, 269216, 279912, 279916, 279919- 279923, 279927, 280183, 280203, 280206, 377411, 377415- 377416, 377418- 377422, 377425- 377426 (OSUC). COSTA RICA: 120 females, 38 males, OSUC 232067, 232070, 532466- 532467, 532471- 532473, 532475, 532477- 532478, 532496, 532498, 532500- 532501, 532504, 532511- 532515, 532520, 532522, 532531, 532534, 532536, 532538, 532540- 532542, 532544- 532548, 532550, 532555, 532557, 532561- 532562, 532564, 532566, 532571, 532579, 532584, 532595- 532596, 532609, 532615, 532629, 532642, 532645, 532652, 532654- 532655, 532659, 532661- 532662, 532671, 532674, 532683, 532690, 532703- 532705, 532707, 532727, 532729, 532731, 532733, 532736, 532742- 532745, 532747- 532748, 532754- 532755, 532758- 532764, 532768, 532770, 532772, 532776, 532779- 532780, 532782, 532793- 532795, 532797- 532801, 532803- 532822, 532826- 532830, 532832, 532835- 532840, 532918, 532920- 532923, 532926- 532927, 532931- 532934, 534139- 534141, 534236 (CNCI); OSUC 244741, 245170, 245172, 245174, 245237- 245238, 246300, 246354- 246355, 358624, 374055 (OSUC). ECUADOR: 14 females, 8 males, OSUC 534252, 553354, 553475, 553489, 553495, 553531- 553536, 553539, 553574, 553597, 553599, 553617, 553667, 553672- 553674, 553708- 553709 (CNCI). PANAMA: 25 females, 13 males, OSUC 534086, 534088- 534089, 534091, 534097, 534099, 553748- 553749, 553752- 553754, 553761- 553763, 553765- 553766, 553772, 553783, 553804- 553806, 553815, 553819, 553823, 553836, 553843- 553844, 553846, 553859, 553875- 553876, 553928, 553933- 553934, 553941- 553943, 553951 (CNCI). VENEZUELA: 23 females, 13 males, OSUC 545830, 545871- 545872, 545939- 545940, 545955, 545957, 545991- 545993, 557657, 557701- 557707, 557712 (CNCI); OSUC 146810, 334525, 334545, 334547, 46271, 46275, 46569, 48153, 48213, 48232, 48327, 48481, 48756, 48784, 48789, 63915, 79762 (OSUC).