Chremylus algecirasus Belokobylskij, 2012

Belokobylskij, Sergey A. & Kula, Robert R., 2012, Review of the brachypterous, micropterous, and apterous Braconidae of the cyclostome lineage (Hymenoptera: Ichneumonoidea) from the Palearctic Region 3240, Zootaxa 3240 (1), pp. 1-62 : 19-21

Chremylus algecirasus Belokobylskij , sp. n.

( Figs 24–32 , 115 )

Type material. Holotype: female, Spain, “Süd-Spanien, Algeciras. Simon”, “ Pambolus rosenhaueri Ratz. , det. Papp J. 1990” ( HNHM).

Etymology. From “Algeciras,” type locality of the new species.

Description. Female. Body length 2.20 mm.

Head (dorsal view) 1.30 times as wide as median length, 1.90 times as wide as mesosoma at level of tegulae. Head behind eyes distinctly, regularly, and weakly roundly narrowed. Transverse diameter of eye 2.50 times longer than temple (dorsal view). Ocelli in almost equilateral triangle. POL about twice Od, 0.80 times OOL. Antennal sockets situated close to each other, diameter of socket 1.80 times distance between sockets, 1.10 times distance between socket and eye. Eye glabrous, without emargination opposite antennal socket, 1.20 times as high as broad. Malar space 0.35 times as high as eye, about 1.50 times as high as basal width of mandible. Malar suture indeterminate. Face distinctly convex, width equal to eye height and 1.70 times height of face and clypeus combined. Width of hypoclypeal depression 0.75 times distance from depression to eye, 0.35 times width of face. Occipital carina complete dorsally, joined ventrally with hypostomal carina above base of mandible. Hypostomal flange wide. Mandible thick. Head below eyes distinctly and almost linearly narrowed (frontal view).

Antenna rather slender, filiform, with 17 flagellomeres, 0.80 times as long as body. Scape with excavation in apical and outer margin, 2.00 times longer than wide. First flagellomere 3.70 times longer than apical width, slightly longer than second flagellomere. Penultimate flagellomere 2.50 times longer than wide, 0.70 times as long as first flagellomere, 0.85 times as long as apical flagellomere; the latter weakly pointed apically and without spine.

Mesosoma more or less reduced in size, length 1.80 times height. Pronotum rather long, anterior margin weakly convex (dorsal view), pronotal keel distinct and situated submedially. Mesoscutum weakly and roundly elevated above pronotum, 0.80 times as long as wide. Notauli shallow, rather wide, complete, rugulose-crenulate. Prescutellar depression relatively deep, long, with median carina, rather distinctly reticulate-coriaceous. Scutellum separated, with distinct lateral carinae. Subalar depression shallow and rugose-strigate. Mesopleuron with very shallow oblique submedian furrow. Precoxal suture present, distinct, crenulate, running along anterior 0.80 of lower part of mesopleuron. Prepectal carina distinct. Postpectal carina possibly absent [obscured by legs and glue]. Metapleural lower lobe rather long, rather narrow basally, rounded apically. Propodeum (lateral view) regularly convex-roundly narrowed posteriorly, with distinct, rather narrow, subcylindrical, subpointed apically lateral processes in posterior 0.25. In dorsal view, mesonotum 3.50 times longer than pronotum, 1.70 times longer than propodeum. Tegulae present.

Wings. Size of wings strongly reduced, narrow, rounded apically, with 2 short marginate veins, without sclerotized areas, protruding shortly behind base of propodeum.

Legs. Fore tibia without spines. Femora more or less slender, without dorsal protuberance. Hind femur weakly curved in basal third, 4.30 times longer than maximum width. Hind tarsus 0.90 times as long as hind tibia. Hind tibia weakly widened posteriorly. Hind basitarsus 0.60 times as long as second through fifth tarsomeres combined. Second tarsomere of hind tarsus 0.50 times as long as basitarsus, 1.40 times longer than fifth tarsomere (without pretarsus). Claws weakly curved.

Metasoma 1.50 times longer than maximum width, 0.80 times longer than head and mesosoma combined. First tergum distinctly and regularly widened from base to apex, with convex and wide median area, with subparallel and narrow separated dorsal carinae; length of tergum 0.80 times apical width, 1.30 times length of propodeum; apical width of tergum 2.60 times basal width. Groove between second and third terga very shallow, almost indistinct medially, weakly curved. Median length of second tergum 0.85 times as long as basal width, 1.40 times longer than third tergum. Median length of second and third terga combined 1.40 times basal width of second tergum, equal to their maximum width. Apical terga shortly protruding behind third tergum. Ovipositor straight, rather slen- der, sheath 0.70 times as long as hind tibia, 0.50 times as long as metasoma, 0.65 times as long as mesosoma.

Sculpture and pubescence. Vertex very densely and distinctly granulate, with distinct additional rugosity; frons densely granulate-rugulose; face almost entirely and distinctly densely granulate with strigation, with narrow and almost smooth area medially; temple entirely distinctly and densely granulate with rugosity along carina. Mesoscutum entirely, distinctly, and densely granulate, anteriorly with rugosity. Scutellum distinctly and densely granulate. Mesopleuron granulate-coriaceous and partly with rugulosity, almost smooth on small areas. Propodeum almost entirely coarsely areolate-rugose, with dense granulation in basal half; with indistinctly delineated areas; areola irregular, indistinctly delineated, rather long, distinctly separated from base of propodeum by basal carina, about 2.00 times longer than wide. Hind coxa mostly smooth, rugose-strigate dorsally. Hind femur almost entirely and distinctly granulate-rugose. First tergum entirely distinctly and sparsely carinate, finely rugulose to smooth on narrow median part, without additional microsculpture. Second tergum distinctly carinate in medio-basal half, rest of tergum smooth. Terga posterior to second tergum entirely smooth. Vertex entirely with rather dense, short, and almost recumbent pale setae. Mesonotum with dense, short, semi-erect pale setae spaced widely along notauli and narrowly laterally. Hind tibia dorsally with dense, short, and semi-erect setae, length of those setae 0.40 times as long as maximum width of hind tibia.

Color. Body predominantly brownish yellow, metasoma behind second tergum light reddish brown, reddish brown in apical 0.25. Basal 0.60 of antenna yellowish brown, rest of antenna rather distinctly infuscate. Palpi yellow. Legs brownish yellow. Ovipositor sheath brown.

Male. Unknown.

Diagnosis. This new species is similar to C. planispinus but differs as follows: second tergum distinctly carinate; areola of propodeum not clearly delineated; head wider than mesoscutum; narrow, subcylindrical, subpointed apically lateral processes in posterior 0.25 of propodeum; first metasomal tergum sparsely carinate; and sculpture of mesoscutum and hind femur coarse.

Distribution. Spain.

Figures

FIGURES 24–32. Chremylus algecirasus Belokobylskij, sp. n., female. 24. Head, front view. 25. Tooth of propodeum, lateral view. 26. Head, dorsal view. 27. Head, lateral view. 28. Basal and apical segments of antenna. 29. Mesosoma, dorsal view. 30. Hind femur, lateral view. 31. Metasoma, dorsal view. 32. Hind tibia, lateral view.

FIGURES 108–116. Habitus photos of brachypterous, micropterous, and apterous cyclostome braconids (108–111, 115–116 [dorsal view]; 112–114 [lateral view]). 108–109. Achaiabracon aenigmatus Belokobylskij (108 – female, holotype; 109 – male, paratype). 110. Heterospilus hemipterus (Thomson) (male). 111. Nipponecphylus matsumurai Belokobylskij & Konishi (male, paratype). 112. Rhaconotus hispanicus Belokobylskij (female, holotype). 113. Spathius maderi Fahringer (female). 114. Spathius pedestris Wesmael (female). 115. Chremylus algecirasus sp. n. (female, holotype). 116. Chremylus pomonellae (Atanasov) (female, paratype).