<strong>The Brazilian Amazonian species of <em>Hymenoepimecis</em> Viereck, 1912 (Hymenoptera: Ichneumonidae: Pimplinae)</strong>

Abstract

Six new species of Hymenoepimecis Viereck are described from Brazilian Amazonian tropical forest: H. amazonensis sp. n., H. duckensis sp. n., H. kleini sp. n., H. manauara sp. n., H. ribeiroi sp. n. and H. uberensis sp. n., and male genitalia is described for the first time for the genus. In addition, we provide an identification key, diagnosis and distributional records for Brazilian Amazonian species of Hymenoepimecis. By describing these new species we aim to draw further attention to the considerable species richness of the genus in Amazonia.

Parasitism of Hymenoepimecis manauara Pádua &amp; Oliveira (Hymenoptera: Ichneumonidae: Pimplinae) on Leucauge henryi Mello-Leitão (Araneae: Tetragnathidae) in Brazilian Amazonian

“…The female and male of H. manauara were recently described by Pádua et al (2015) and were characterized by having the femur orange with black apex. However, the female in our study (Fig.…”

“…This species is characterized by having hyaline wings, hind leg orange, with apex of femur, tibia and tarsus black; metasoma orange with posterior margins of tergites II-IV narrowly black, tergites V+ black; and female with ovipositor 1.1-1.3 times as long as hind tibia (Pádua et al 2015). Until now, there was no record of host for this species.…”

Description of the male of Hymenoepimecis bicolor (Brullé, 1846) (Hymenoptera, Ichneumonidae, Pimplinae)

“…Within Polysphincta group, Hymenoepimecis Viereck, 1912 (Ichneumonidae) wasps occur in the Neotropical region, from Mexico to Southern of Brazil (Gauld, 2000;Gauld and Dubois, 2006;Gonzaga and Sobczak, 2007;Loffredo and Penteado-Dias, 2009;Pádua et al, 2015). The species of this genus are characterized by the presence of a pocket-like structure on the pronotum; a mesopleuron with epicnemial carina vestigial or absent; the absence of the vein 3 rs-m in fore wing (Gauld, 1991); yellowish brown color and large ocelli (Gauld and Dubois, 2006).…”

“…Currently, Hymenoepimecis is composed by 20 valid species (Yu et al, 2012;Pádua et al, 2015), of which 12 are known as parasitoids of spiders (summarized in Pádua et al, 2016). Regarding these interactions, it is known that the larva of some wasp species can induce the host spider to construct a modified web (cocoon web), which is subsequently used as substrate for the wasp larva's cocoon (Eberhard, 2000a(Eberhard, , b, 2001Sobczak et al, , 2014Gonzaga et al, 2010;).…”

“…Comments: The male genitalia of H. bicolor was compared to the other species of which male genitalia has been described so far, H. duckensis Pádua & Onody, 2015, H. manauara Pádua & Oliveira, 2015, H. ribeiroi Pádua & Sockzak, 2015, and H. uberensis Pádua & Onody, 2015(see Pádua et al, 2015. It was observed that H. bicolor differs from H. duckensis by having the volsellar lamina with few bristles spaced subapically and cuspis with bristles at the apex; H. duckensis do not have bristles at the apex in the cuspis and nor the volsellar lamina with many bristles spaced, except in posterior region.…”