outside by a huge mass of long stout hairs, wiiieh lie liat ujiou the (ilaspcr ; tliese 

 hairs are very l)ritt]e ; the edge of the eightli tergite is also swollen, inflated, mem- 

 branaceous ; MO distinct liarpe. Penis-slicatli (IM. LIII. f. 14) less deeply divided 

 than in l.-adnii, tlie left procu'ss short : i)roc('ss of penis-funnel (p-k) obviously 

 clubbed. 



?. Eighth tergite little l)road('r tliau long, strongly chitinised, truncate, angles 

 rounded, membranaceous uiesially. Vaginal plate triangnlar, •a\w\ Ijroader than in 

 the preceding. 



Huh. Honduras to Bolivia and Nortiiern Brazil. 



In the Tring Museum T) cJc?, 4 ? ? from : Honduras ; S. Augustin, Mapiri R., 

 Bolivia, SrxjU ft., iv. '95 (Stuart); Maripa, ('aura 1{., Venezuela, vi. vii. I'.IO] (S. 

 Klages) ; Amazons (Bates). 



In tlu' BciMi Museum from Para (Dr. (iooldi), at tlie electric, liglit, iii. vi. 



XGIV. LEUCORHAMPHA gen. nov.— Typus : triptolemu-s. 



fiphhij; Cramer {noii Linn^, 1758), Pap. Ex. iii. p. 40 (1779). 

 Henirni/iltine.i Hiibner, Verz. beh. Srhiii. p. 133 (1822) (partim ; type : pan). 

 OilliiiiiiiiiK Walker, Li.il Lep. Im. B. M. viii. p. 108 (1856) (pai'tim ; type : jiomiun). 

 Trij)h)(/oH M^n^ti'itjs, Eniint. Corp. Aitiiii. J/»s. Pctr., Lip. p. 95 (1857) (partim ; mim. hide 

 Pliihmpihis (!), Schaufuss {mm Harris, 1839), Nuiiq. Olios, i. p. 19 (1870). 

 Maihrji-r Boisduval, Spec. Geii. Up. Het. i. p. 150 (1875) (partim ; type : oic!ii.<<). 



S ? . Palpi rounded in dorsal and lateral view. Scaling somewliiit raised on 

 occiput. Antenna very slender, with a long gradual hook, no prolonged seriated 

 ciliae in ? , cud-segment long, gradually narrowed to a jjoint. Spines of abdomen 

 arranged in one row, sternites and pro.ximal tergites with long and short sjiines 

 alternating, distal tergites with long, strong, conical spines only, which are widely 

 separate from one another : seventh sternite of ? not spinose, membranaceous 

 distally ; fan-tail of c? with three prolonged tufts, ¥ with a single tuft. Legs and 

 nenration essentially as in Hemfrojjlanrti. Distal margins dentate ; forewing 

 anguliite at R^, with a longitudinal silvery streak at base of R'. 



cJ. Se.xnal armature rather uniform: tenth tergite (PI. XLII. f. 2.")) divided 

 by a broad rounded sinus into two lobes ; sternite (A'») a low ridge, produced at 

 each side into a long, apical, curved, pointed process, which is much longer than the 

 tergite. C!lasi)er large, with a patch of lanceolate friction-scales ; above harpe there 

 is basally a fold covered with bristles ; the harpes of the two claspers the same size, 

 short, cnrved upwards at end, acuminate or sinnate. Penis-sheath (PI. LIII. f 20) 

 of the same type as in Madoii/.r ; apically produced into a short obtuse process, 

 which is beset at the edge with short teeth, and bears at the sides a dense covering 

 of short spines, which break easily ofi', resembling a brush. 



? . Vaginal plate truncate, somewhat angulate in middle ; orifice mesial, 

 without special armature, excej)! a slight lateral and a proximal fold. 



Larva (adult) flattened, without horn, head small, posterior thoracical segments 

 enlarged ; mimicking a snake. 



Ilah. (Central and South America ; not yet found in the West Indies. 



Four species, which are closely allied to each other. 



The differences between this genus and .\f(ulfl)i/.r are but slight. However, we 

 think it advisable to keej) frijitolcmiis and allies generically separate from oiclus 

 and allies, as each group of species represents a special type of development. 



