insects infesting figs. 37 



Idaknella, n. g. 

 Idarnes (pars), Walker, ' Notes on Chalcidiae,' p. 62. 



The genus Idarnes was proposed by Walker (Ann. Nat. 

 Hist., xii. 47) for the reception of a minute female chal- 

 cidideous insect from St. Vincent's, West Indies (/. carme), 

 with extremely long ovipositor and slender body, the 

 palpi being described in that species as biarticulate ; the 

 antennae short and clavate (the number of joints not 

 being indicated), the 1st joint long and thick, the 2nd 

 cyathiform, the 3rd and following very short ; the pro- 

 thorax large and transverse; the abdomen as " longi- 

 ovatum," with the 1st segment large; the oviduct very 

 long, the vaginae being thrice the length of the body ; 

 the femora of the fore and hind legs thick, the middle 

 legs being " graciles." 



The type, Idarnes carme, is brassy green, with the 

 abdomen cupreous, antennas black, legs fulvous, eyes 

 and ocelli red, oviduct fulvous, sheaths black. 



Idarnella transiens* Walker (op. cit., p. 62). (PI. VI., 

 figs. 36—42). 



The species which is represented in the accompany- 

 ing figures inhabits Hindostan and Ceylon, and is 

 distinguished by a rather large head, long slender 

 antennas in both sexes, the basal joint being long and 

 not clavate, the 2nd joint about one-fourth of the length 

 of the preceding, the 3rd small and annular, the four 

 following equal sized, each rather longer than the 2nd, 

 and the 9th, 10th, and 11th forming a long articulated 

 mass, pointed at the tip. The prothorax is rather small 

 and conical. The fore wings have an elongated de- 

 flexed vein. The abdomen of the male is armed with two 

 3-dentate retinacula, whilst that of the female is term- 

 inated by a long slender cylindrical joint as long as the 

 whole of the preceding portion of the abdomen, and this 

 is succeeded by another still more slender cylindrical 

 joint, from the extremity of which arise the two sheaths 

 of the very elongate ovipositor (thickened at their 

 extremities), the ovipositor itself being extremely slender 

 and hair-like. 



* The typical specimen of I. carme, in the British Museum, has 

 unfortunately lost its head. 



