Ceraphron (Larsoceraphron) sylviae Dessart, 1981

Ghafouri Moghaddam, Mostafa, Salden, Tobias, Heidari Latibari, Minoo & Butcher, Buntika A., 2025, Review of the subgenus Larsoceraphron Dessart, 1981 of the genus Ceraphron Jurine, 1807 (Hymenoptera, Ceraphronidae) with the description of a new species from Thailand, Journal of Hymenoptera Research 98, pp. 579-602 : 579-602

publication ID	https://doi.org/10.3897/jhr.98.151607
publication LSID	lsid:zoobank.org:pub:142EFB0A-63B6-45DE-A90A-4DD9D0AA9A07
DOI	https://doi.org/10.5281/zenodo.15586132
persistent identifier	https://treatment.plazi.org/id/0FCFD694-2C33-51A0-968D-621F25C6C627
treatment provided by	Journal of Hymenoptera Research by Pensoft
scientific name	Ceraphron (Larsoceraphron) sylviae Dessart, 1981
status

Treatment

Ceraphron (Larsoceraphron) sylviae Dessart, 1981 View in CoL

Figs 4 A – K View Figure 4 , 5 A – K View Figure 5 , 6 F, G View Figure 6

Type material examined.

Holotype • female, Brazil, Mato Grosso, Sinop , xi. 1975, Malaise trap, M. Alvarenga leg., préparation microscopique n ° 8102 / 052, CNC (Fig. 4 K View Figure 4 ) . Allotype • male, Brazil, Amazon, Moura, on the Rio Negro , 20. ii. 1973, B. V. Peterson leg., préparation microscopique n ° 8102 / 051, CNC (Fig. 5 K View Figure 5 ) .

Diagnosis.

Mesosoma and metasoma reddish-brown with the anterior mesoscutum (Fig. 4 A, F View Figure 4 ), anterolateral axillae, ventral mesopleuron, synsternite, and syntergite partially black (Fig. 4 F, I, G, H View Figure 4 ); anterior ocellar fovea U-shaped and ventrally extended into facial sulcus (Fig. 4 E View Figure 4 ); lateral margins of toruli extremely raised (Fig. 4 C View Figure 4 ); pedicel 1.2 × longer than the 1 st flagellomere (Figs 4 A View Figure 4 , 6 G View Figure 6 ); width of 4 th flagellomere 1.08 × its length (Figs 4 A View Figure 4 , 6 G View Figure 6 ); notauli distinctly broadened (Fig. 4 F View Figure 4 ); median mesoscutal sulcus broadened (Fig. 4 F View Figure 4 ); mesoscutum and - scutellum equipped with large randomly sized areolae (Fig. 4 F View Figure 4 ); mesometapleuron with distinct longitudinal striations (Fig. 4 I View Figure 4 ).

Re-description

(female). Body length 2.7 mm.

Colour. Head black, mesosoma and metasoma reddish-brown, with the anterior mesoscutum, anterolateral axillae, ventral mesopleuron, synsternite, and syntergite partially black (Fig. 4 A, F – J View Figure 4 ); antennae dark brown with pedicel and basal five flagellomeres lighter (Fig. 4 A View Figure 4 ); coxae brown, the rest of the legs yellowish (Fig. 4 A View Figure 4 ); fore wing disc slightly infuscated (Fig. 4 B View Figure 4 ); wing venation light brown (Fig. 4 B View Figure 4 ).

Head. Slightly longitudinal in frontal view with long malar distance, width of the head equal to width of the mesosoma, densely pubescent (Fig. 4 C – E View Figure 4 ); lateral margins of toruli extremely raised; eyes large, covered with erect setae (Fig. 4 C – E View Figure 4 ); slightly crenulate ocular impressions along the inner margin of the eye (Fig. 4 C, E View Figure 4 ); dorsal head with distinct randomly sized areolae (Fig. 4 E View Figure 4 ); median ocellus diameter 1.6 × LOL (Fig. 4 E View Figure 4 ); occipital carina distinctly concave, with lateral part distinctly posteriorly protruding (Fig. 4 D, E View Figure 4 ); anterior ocellar fovea U-shaped and ventrally extended into facial sulcus, almost reaching dorsal margin of antennal scrobe (Fig. 4 E View Figure 4 ); facial sulcus ends at areolae between the facial sulcus and the smooth supraclypeal depression (Fig. 4 C View Figure 4 ); intertorular sclerite and clypeus with distinct pubescence (Fig. 4 C View Figure 4 ); interocular distance 0.43 × head width (Fig. 4 C View Figure 4 ); antennae with four apical flagellomeres distinctly thickened (Figs 4 A View Figure 4 , 6 G View Figure 6 ); scape 1.10 × the pedicel and 1 st to 4 th flagellomere combined (Figs 4 A View Figure 4 , 6 G View Figure 6 ); pedicel 1.2 × longer than the 1 st flagellomere (Figs 4 A View Figure 4 , 6 G View Figure 6 ); width of 4 th flagellomere 1.08 × its length (Figs 4 A View Figure 4 , 6 G View Figure 6 ); width of 5 th flagellomere 0.71, 6 th 0.75, 7 th 0.73, and 8 th 0.39 × its length, respectively (Figs 4 A View Figure 4 , 6 G View Figure 6 ).

Mesosoma. Mesoscutum strongly transverse, width 2.5 × its length and anteriorly distinctly steep (Fig. 4 F, I View Figure 4 ); notauli distinctly broadened, incomplete, almost adjacent to transscutal articulation (Fig. 4 F View Figure 4 ); mesoscutum and - scutellum equipped with large randomly sized areolae (Fig. 4 F View Figure 4 ); scutoscutellar sulci converge medially, adjacent to transscutal articulation (Fig. 4 F View Figure 4 ); mesometapleuron with distinct longitudinal striations, smooth in ventral one quarter (Fig. 4 I View Figure 4 ); lateral propodeal projections distinctly long and oriented posteriorly, reddish-brown (Fig. 4 G View Figure 4 ); median propodeal projection overhangs the anterior margin of the metasoma with its apical half, with slightly rounded tip from dorsal view (Fig. 4 G View Figure 4 ).

Legs. Metacoxa with several longitudinal striations (Fig. 4 A, I View Figure 4 ); metafemur distinctly thickened, length 2.8 × its maximum width (Fig. 4 A View Figure 4 ).

Metasoma. Six basal longitudinal carinae on the syntergite covering three quarters of the width of the anterior syntergite (Fig. 4 G View Figure 4 ); anterolateral syntergite with row of setae slightly shorter than basal longitudinal carinae (Fig. 4 H View Figure 4 ).

Body measurements. For further measurements, refer to Dessart (1981).

Re-description

(male). Body length 2.7 mm.

Apart from the sex specific characters like the shape of the flagellomeres and genitalia / terminalia structure, the male differs from the female in the following:

The mesosoma is black like the head (Fig. 5 A, F, I View Figure 5 ); the head, mesoscutum, and - scutellum are equipped with less distinct areolae (Fig. 5 D – F View Figure 5 ); the lateral margins of the toruli are less raised and the lateral part of the occipital carina is distinctly less protruding posteriorly (Fig. 5 D, E View Figure 5 ); the mesometapleural sulcus is slightly indicated (Fig. 5 I View Figure 5 ); the width of the head is slightly wider than the width of the mesosoma (Fig. 5 A View Figure 5 ).

Body measurements. For further measurements, refer to Dessart (1981).

Host.

Unknown.

Distribution.

Neotropical ( Brazil).

Remarks.

The male specimen of C. sylviae can be separated from C. huggerti by its presence of a mesometapleural sulcus. Male genitalia of both species could not be compared but need future revision.