44 Mr. R. M'Lachlan on the Neiwopterous Genus 



gined, the produced portion being crenulate and black ; sockets 

 of the ocelli black ; disk with fine wavy, intricate, raised lines. 

 Mandibles and antennas black. Prothorax much narrower 

 than the head, longer than broad, finely transversely rugose, a 

 lanceolate smooth space in the middle posteriorly ; on each 

 side is a black vitta divided into two elongate spots, whereof 

 the lower is the longer and is furcate at its upper end. Meso- 

 and metathorax and abdomen dull ochreous ; last abdominal 

 segment produced in its middle above into a somewhat qua- 

 drate process ; superior appendices moderately long, the tips 

 thickened, clothed with fine yellowish pubescence ; inferior 

 appendices long, two-jointed, the second joint abruptly curved 

 inwards in the form of an acute claw ; penis (?) long, flat, the 

 sides parallel, the apex acuminate, sulcated beneath, and 

 bifid, the two extreme tips turned slightly outwards. Legs 

 dull ochreous, with all the tibise and tarsi black. 



Wings greyish, subhyaline, the posterior pair paler ; in the 

 anterior wings all the costal veinlets strong and black ; the basal 

 veinlets and those between the radius and sector also strong 

 and black, and margined with black ; apical veinlets fuscous ; 

 longitudinal veins yellow : posterior wings with the costal 

 veinlets, and those between the radius and sector, black. 



I have seen one male. The part which I have called the 

 penis, in this and the last species, is perhaps not truly that 

 organ, and may be only a greatly elongated lower valve. 



Neuromus tnttmuSy n. sp. 



N. griseo-Iuteus. Caput modice latum, dente utrinque instructum, 

 inter ocellos nigrum. Antennae (praeter articulos duos basales) 

 mandibiilseque (macula ad basin excepta) nigrge. Prothorax 

 supra utrinque nigro bimaculatus. Appendices superiores 

 elongatae, latse, ad apicem acuminatae : inferiores biarticulatae, 

 geniculatae ; articulus primus brevis, tubercido ad basin instructus, 

 secundus elongatus, acutus. Pedes fla-\d ; tibiis tarsisque nigro- 

 fuscis, intus pallidioribus. Alae griseo-hyalinae : anticae venis 

 longitudinalibus flavis, venulis costalibus discalibusque incras- 

 satis, nigris : posticae venulis costalibus illisque inter radium et 

 sectorem nigris (S)- Long. corp. 14-15'" ; exp. alar. 41-43'". 



Hab. in India orientali. In coll. Mus, Brit. 



Pale greyish yellow. Head moderately broad, the sides 

 scarcely produced, but with an evident tooth at each lower 

 angle ; a black spot between the ocelli. Antennge black, the 

 two basal joints yellow. Mandibles black, with a pale spot at 

 the base externally. Prothorax slightly narrower than the 

 head, and slightly longer than broad ; two large oval black 

 spots on each side above, the lower being the larger. Abdo- 



