6o 



NEOCHELOGYNUS gen. nov. 



Of robust form. Front legs with chelate anterior tarsi, but the 

 chelae less perfect than those of any of the preceding genera, and 

 the legs are short, not unusually lengthened, with the femora 

 very stout and the trochanters short. 



Head subincrassate, convex, the ocelli in an isosceles triangle, 

 much widest at the base; antennae becoming more or less wide 

 towards the apex. Maxillary palpi six-jointed, labial palpi three- 

 jointed. Pronotum shorter than, or scarcely subecjual in length 

 to, the mesonotum, its hind angles attaining the tegulae ; meso- 

 notum without parapsidal furrows or with these only just visible 

 at the extreme front; propodeum as wide as long, or still shorter. 

 Anterior tarsi with the fourth joint longish, much longer than 

 the preceding, and about equal in length to the fifth from its 

 basal articulation to the pulvillus, the backward prolongation of 

 the fifth longer than the length of this joint from its basal articu- 

 lation to the apex; so that the articulation is situated at about 

 one-third of the whole length of the joint. Front wings with the 

 radius short and straight, terminated in a knob or small thick- 

 ening, or bent near the extremity. Abdomen with the basal 

 segment greatly raised from the petiole, the basal face being on 

 a plane strongly inclined to the dorsal surface. 



Synopsis of species of NEOCHELOGYNUS. 



1. (8) Wings with one or more dark clouds or bands. 



2. (3) Front wings with only one smoky cloud extending 



beneath the stigma and marginal cell...A^. typiciis 



3. (2) Front wings with cloud or band as above, and with a 



second band at the apex of the basal cells. 



4. (5) Propodeum for a large part smooth and shining pos- 



teriorly A'', leiosoinus. 



5. (4) Propodeum posteriorly at most slightly shining, the 



surface everywhere rugulose or finely- rugose. 



6. (7) Propodeum with the surface finely transversely and 



regularly rugose posteriorly N. nitidus. 



7. (6) Propodeum with the posterior surface excessively fine- 



ly rugulose N. diinidiatiis. 



8. (i) Wings without smoky bands or clouds. 



8. (10) Antennae black , .A^. nigriconiis. 



10. (9) Antennae with the scape at least pale. 



11. (12) Antennae entirely pale A^. palUdicornis. 



12. (11) Antennae largely black or fuscous. 



