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Neochrysocharis Kurdjumov, 1912

 
   
N. okazakii, male N. sp.n., female
  N. formosa, female
     
   
 
 
     
     

Distribution

      

Biology

      

Comments

      
       
           

Classification

 

Subfamily

Tribe

Entedoninae

Entedonini

            
 
 
 

Diagnosis

 
   
 
Fore wing with submarginal vein with 2 setae dorsally. Postmarginal vein (PMV) present and at most as long as stigmal vein (STV).
Flagellum both in male and female with usually 2 funicular segments and club with 3 fused segments. Male scape with sensory area on scape placed on ventral margin.
Head with fronto-facial suture distinctly separated from anterior ocellus and V or Y-shaped.
Mesosoma usually quite sculptured. Pronotum without transverse carina. Notauli usually incomplete, although some species, as N. formosa (Westwood), have notauli complete to posterior margin of mesoscutum. Mesoscutum and scutellum without longitudinal grooves; scutellum with a single pair of setae. Propodeum smooth, shiny and without median carina and plica; callus with 2 setae (sometimes 3).
Petiole not distinct.
Coloration mainly green metallic without yellow markings.

 
         
     
 
 

Distribution
 

Neochrysocharis is a moderate sized genus which is cosmopolitan in distribution (Noyes, 2001).
         
 
 

Biology
     

Neochrysocharis species are usually primary larval endoparasitoids of a wide variety of leafmining or stemboring insects. They may be solitary or gregarious. Their host range also includes eggs of sawflies and occasionally Ichneumonidae or Braconidae parasitizing Lepidoptera (Hansson, 1990).
       
                                       
 
 

Comments
 
Neochrysocharis belongs to the subfamily Entedoninae by having 2 setae on submarginal vein, scutellum with a pair of setae, fronto-facial suture distinctly separated from anterior ocellus and male scape with sensory pores placed at the ventral edge.
There have been some debates in the past on the generic status of Neochrysocharis, particularly in terms of its relatedness to Closterocerus and Chrysonotomyia (Boucek, 1988; Hansson, 1990; Schauff, 1991). Hansson (1995a), revising the Nearctic species, considered Neochrysocharis to be a valid genus and transferred several species previously placed in Chrysonotomyia to this genus. Among Entedoninae included in the key, it appears quite easy distinguish Neochrysocharis from Pediobius, Apleurotropis, Pleurotroppopsis and Proacrias by not having transverse carina on pronotum, median carina on propodeum and grooves on mesoscutum and/or scutellum; from Closterocerus (considered the most related genus), Asecodes and Trisecodes by not having lines of setae departing from stigmal vein; from Achrysocharoides by having fronto-facial suture V or Y-shaped (Achrysocharoides has fronto-facial suture straight); finally, from Chrysocharis by having a shorter postmarginal vein (Chrysocharis has a postmarginal vein at least 1.5 times longer than stigmal vein).
Keys to Neochrysocharis are provided by Hansson for Palaearctic (1990) and Nearctic (1995a) species.
                       
                                                             
                         
 
                                                             
     
 
 

 

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