Callihormius
A medium size genus with less than 20 species described [1]. Contrary to Marsh [2], Gadelha et al. [3] are less inclusive studying this genus.
Two subgenera were previously recognized: Callihormius s.str and Dmitriohormius. But the subgenus Callihormius (Dmitriohormius) has been erected to a generic status after more molecular analysis [4], [3]. Species of Callihormius that do not fit in the new definition (sensus Gadelha et al, 2020) have been placed in some new genera.
References
- , “Taxapad 2012, Ichneumonoidea 2011. Database on flash-drive.”. www.taxapad.com, Ottawa, Canada., 2012.
- , The Doryctinae of Costa Rica (excluding the genus Heterospilus), vol. 70, 1 vol. Gainsville, Fl.: American Entomological Institute, 2002, p. 319.
- , “Molecular phylogenetics disentangles the limits of a group of related Neotropical doryctine parasitoid wasp genera (Hymenoptera : Braconidae)”, Invertebrate Systematics, vol. 34, pp. 769-797, 2020.
- , “A new subgenus of the genus Callihormius Ashmead, 1900 (Hymenoptera: Braconidae: Doryctinae) from Mexico”, Proceedings of the Russian Entomological Society. St Petersburg, vol. 85, no. 1, pp. 151-156, 2014.
Some species have been recorded as host of larvae of Buprestidae and Cerambycidae [1].
References
- , The Doryctinae of Costa Rica (excluding the genus Heterospilus), vol. 70, 1 vol. Gainsville, Fl.: American Entomological Institute, 2002, p. 319.
This genus (sensu [1]) is now described as follow : Body size 2.5–4.2 mm; head with vertex and temple coriaceous; face rugose or striate-rugose; antennae no longer them 30 segments; pronotal collar variable; mesoscutum higher than pronotum in lateral view but not declivous anteriorly (in a 90°angle), gently curved to pronotum; mesosoma mostly sculptured; mesoscutum mostly coriaceous; notauli usually absent or slightly marked; posteromedian rugose or striate-rugose area of mesoscutum small and in a ‘V’ shape, or absent; scutellum convex, usually swollen; hind coxa with distinct basal tubercle; fore wing banded; vein r-m present; second submarginal cell slightly lengthened beyond apex of stigma, thus vein 3RSa shorter than 3RSb; vein m-cu in line with 2RS or slightly basal to 2RS; first subdiscal cell open at apex, thus vein 2cu-a absent; vein 2CU slightly curved on its base, not in line with vein 1CU; hind wing vein M+CU longer than 1M, ovipositor length not much longer than metasoma, usually equal or shorter than metasomal length .
Previously, the genuw was described by Marsh [2] as follow : Small size, 2.5-4.5 mm; head cubicle, occipital carina either distinctly meeting hypostomal carina or ending just short; pronotum lengthened behind head, pronotal collar often as long as first flagellomere; mesoscutum declivous anteriorly; notauli usually absent, occasionally distinct their entire length; scutellum often distinctly swollen; sternaulus at least .7 length of mesopleuron, often as long as mesopleuron, sculptured or smooth; first metasomal tergum varying in length from slightly shorter to slightly longer than apical width, basal sternal plate 0.25 to 0.33 as long as tergum, dorsope distinct and deep; fore tibia with single row of 5-10 stout spines along anterior edge, hind coxa with small but distinct basal tubercle; fore wing banded, vein r-m present, vein m-cu interstitial with or apical to vein 2RS, first subdiscal cell open at apex, vein 2-CU often nearly on same line as 1CU; hind wing vein M+CU equal or longer than vein 1M, male hind wing with or without stigma.
References
- , “Molecular phylogenetics disentangles the limits of a group of related Neotropical doryctine parasitoid wasp genera (Hymenoptera : Braconidae)”, Invertebrate Systematics, vol. 34, pp. 769-797, 2020.
- , The Doryctinae of Costa Rica (excluding the genus Heterospilus), vol. 70, 1 vol. Gainsville, Fl.: American Entomological Institute, 2002, p. 319.
It differ from Aphelopsia by having a shorter second submarginal cell of fore wing and from Platydoryctes by its slightly shorter acrosternum of the first metasomal segment and more distinct tubercle on the hind coxa [1].
It differ from other morphologically similar genera by having vertex coriaceous; antennae with less than 30 segments; mesoscutum higher than pronotum, slightly curved to pronotum in lateral view; posteromedian rugose or striate-rugose area of mesoscutum small or absent; fore wing vein 3RSa shorter than 3RSb; vein m-cu in line with, or slightly basal to, 2RS and ovipositor usually shorter than metasoma [2].
References
- , The Doryctinae of Costa Rica (excluding the genus Heterospilus), vol. 70, 1 vol. Gainsville, Fl.: American Entomological Institute, 2002, p. 319.
- , “Molecular phylogenetics disentangles the limits of a group of related Neotropical doryctine parasitoid wasp genera (Hymenoptera : Braconidae)”, Invertebrate Systematics, vol. 34, pp. 769-797, 2020.
One species was reported as parasitoid of Anthaxia viridicornis (Say) (Buprestidae) and Xylotrechus quadrimaculatus (Haldman) (Cerambycidae) (Marsh 1966).
Nearctic, Neotropical. The species previously known from India belongs to the Rhaconotus [1].
References
- , “A new subgenus of the genus Callihormius Ashmead, 1900 (Hymenoptera: Braconidae: Doryctinae) from Mexico”, Proceedings of the Russian Entomological Society. St Petersburg, vol. 85, no. 1, pp. 151-156, 2014.