( 380 ) 



outside by a large mass of long stoat hairs, which lie flat upou the clasper ; these 

 hairs are very brittle ; the edge of the eighth tergite is also swollen, inflated, mem- 

 branaceous ; no distinct harpe. Penis-sheath (PI. LIII. f. 14) less deeply divided 

 than in kadeni, the left process short ; process of penis-funnel (p-f) obviously 

 dubbed. 



? . Eighth tergite little broader than long, strongly chitiuised, truncate, angles 

 rounded, membranaceous mesially. Vaginal plate triangular, ape.x broader than in 

 the preceding. 



JIab. Honduras to Bolivia and Northern Brazil. 



In the Tring Museum 5 c?c?, 4 ? ? from : Honduras ; S. Augustin, Mapiri R., 

 Bolivia, 3501} ft., iv. '95 (Stuart) ; Maripa, Canra R., Venezuela, vi. vii. 1901 (S. 

 Klages) ; Amazons (Bates). 



In the Bern Museum from Para (Dr. Goeldi), at the electric light, iii. vi. 



XCIV. LEUCORHAMPHA gen. nov.— Typus : triptolemiix. 



Sphinx, Cramer (nnn Linn^, 1758), Pap. Ex. iii. p. 40 (1779). 



Hemernjiliines Hiibner, Vcrz. bek. Schni. p. 133 (I8'22) (partim ; type : pan). 



CaUioninm Walker, Lht Lap. Im. B. M. viii. p. 108 (1856) (partim; type : nomhis). 



Triptoyon M^ne'trii$.«, Enuni. Corp. Aniiii. Mus. Peti:, Lep. p. 95 (1857) (partim ; nom,. imltscr, !). 



Philampilus (!), Schaufuss [nun Harris, 1839), Nuiiq. Olius. i, p. 19 (1870). 



Mudoii/.c Boisduval, Sprr. Gen. Lep. Ilet. i. p. 150 (1875) (partim ; type : oichis). 



(? ? . Palpi rounded in dorsal and lateral view. Scaling somewhat raised on 

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

 ciliae in ? , end-segment long, gradually narrowed to a point. 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 

 neuration essentially as in Iltincrojilane.'i. Distal margins dentate ; forewing 

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



cj. Se.xnal armature rather uniform : tenth tergite (PI. XLII. f. 25) 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. Clasper 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, curved upwards at end, acuminate or sinuate. Penis-shoath (PI. LIII. f 20) 

 of the same type as in Ma(lor)/.v ; apicall}' produced into a short obtuse jirocess, 

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

 of short spines, which break easily ofl", resembling a brnsli. 



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

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



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

 enlarged ; mimicking a snake. 



Hub. 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 Madonjx are but slight. However, we 

 think it advisable to keej) trijitolemiiis and allies generically separate from oicluss 

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



