Deinodryinus caxiuana Coelho, Aguiar et Engel 2011, sp. nov.
Creators: name: Coelho, Beatriz W.
name: Aguiar, Alexandre P.
name: Engel, Michael S.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Dryinidae
Deinodryinus
Deinodryinus caxiuana

description: Deinodryinus caxiuana Coelho, Aguiar et Engel, sp. nov.
(Figs 1–5)
Diagnosis. The new species is similar to Deinodryinus incaicus Olmi 1984 but differs in that pronotum, mesoscutellum (in part), metanotum (in part), and metasoma are fully testaceous; notauli reach 0.5 length of mesoscutum, frons lacks keels and weakly rugose, OPL about 2 × OL (in D. incaicus OPL about 3 × OL), posterior surface of propodeum has transverse and irregular keels near petiole, and protarsomere 5 has approximately 10 lamellae (approximately 50–57 in D. incaicus).
Description. FEMALE. Fully winged; total body length 4 mm; head testaceous with small dark brown stripe between antennal bases and orbital margin; mandible whitish; antenna, pronotum, and metasoma testaceous; mesoscutum black with central area testaceous; mesoscutellum and metanotum testaceous; propodeum black; mesopleura and metapleura black; legs testaceous with parts whitish, metafemur partly blackish. Antennal segments in following proportions: 17:8:25:14:12:10:10:10:10:14; head granulate with very sparsely scattered setae on vertex, more setose in frons, weakly rugose (without keels or areolae) near compound eyes; frontal line absent; occipital carina complete, strong, sculptured by longitudinal keels; POL=5; OL=5; OOL=16; OPL=11; pronotum with strong transverse anterior furrow, setose, with fading transverse keels on anterior impression; posterolateral angles of pronotum reaching tegulae; posterior surface of pronotum flat, weakly granulate, nearly smooth with very few setae, shorter than mesoscutum (5:7), approximately as long as broad; mesoscutum shiny, smooth; notauli approximately reaching 0.5 length of mesoscutum; mesoscutellum and metanotum shiny, smooth; propodeum with weak transverse keel between dorsal and posterior surfaces, dorsal surface with areolae; posterior surface reticulate rugose, setose, with some transverse, irregular keels near petiole; fore wing with two brown transverse bands; distal portion of Rs longer than proximal portion; tibial spur formula 1–1–2; protarsomeres in following proportions: 24:6:15:50:70; enlarged pretarsal claw with single short bristle located further distally than proximal prominence; protarsomere 5 with row of approximately 10 lamellae; distal apex with two lamellae of different size.
MALE. Unknown.
Material examined. BRAZIL: Holotype Ƥ (MPEG), PA, Melgaço, Caxiuanã, trail at igarapé Curua, 20– 23.XI.2003, P05108A, YPT, A.P. Aguiar & J. Dias.
Distribution. The species is known from type locality only.
Etymology. The specific epithet is a noun in apposition and is the name of the forest reserve in which the species was captured.
Comments. Deinodryinus caxiuana sp. nov. shares with D. incaicus similar antennal segment proportions; posterior surface of pronotum flat and smooth; mesoscutum, mesoscutellum, and metanotum smooth; and propodeum reticulate rugose with areolae on dorsal surface. In Olmi’s (1991) key to females of Neotropical Deinodryinus, current species can be inserted at couplet 45, near D. incaicus, as follows:
45 Region of head behind posterior ocelli without two oblique keels connecting posterior ocelli to occipital carina......... 45’ - Region of head behind posterior ocelli with two oblique keels connecting posterior ocelli to occipital carina............ 46 45’ Notauli almost reaching posterior margin of mesoscutum; frons with keels in central area; OPL approximately 3 × OL; protar-
somere 5 with 52–57 lamellae............................................................... D. incaicus Olmi - Notauli reaching approximately 0.5 length of mesoscutum; frons without keels (Fig. 4); OPL approximately 2 × OL; protar-
somere 5 with about 10 lamellae......................................................... D. caxiuana sp. nov.
description: Published as part of Coelho, Beatriz W., Aguiar, Alexandre P. & Engel, Michael S., 2011, A survey of Dryinidae (Hymenoptera, Chrysidoidea) from Caxiuanã, Amazon Basin, with three new taxa and keys to genera and species, pp. 1-21 in Zootaxa 2907 on pages 4-7, DOI: 10.5281/zenodo.201416