184: THE CANADIAN ENTOMOLOGIST. 



standing I was doing much collecting at all tunes and in all places con- 

 sidered favourable. Where were they ? 



I have recently bred A. vUlosipes, Selys, by scores, and I find its 

 exuvife sticking to every bank about Ithaca, yet I have not seen a single 

 imago at large. The imagoes, where are they ? 



Arigomphiis aitstralis, n. sp. Male. — tJotha, Fia. 



Length, 52 mm.; abdomen, 39; hind wing, 27. 



Black and olive. 



Face yellow with dense black pubescence. 



A black stripe across base of labrum and another across the anterior margin of the 

 frons. Rear of frons and whole of vertex black. Occiput yellow, convex, ciliate with 

 black. Rear of eyes black above, yellow below. 



Prothorax black with a median twin spot and a larger spot each side yellow. 



Thorax olivaceous, striped with brown as follows : Dorsal stripes fused to form a 

 cuneiform dorsal spot, not reaching the base, and narrowly divided with yellow along 

 the extreme summit of the carina. Its narrow upper end is met by the strongly incurved 

 antehumeral stripes, which are well separated from the narrower humeral stripes. 

 Narrow but distinct stripes on both lateral sutures. 



Legs black. Front femora pale within. 



Wings hyaline, costa yellow, stigma brown. Veins black. Hind wing chalky 

 near anal margin. 



Abdomen long, slender. Segments 3 to 6 cylindric, narrower than terminal 

 segments, entirely black. Remaining segments black, marked with yellow as follows : 

 Sides of I and 2 ; dorsal lanceolate spots on 7 and 8 ; sides of 7 apically, and sides of 

 8 to 10 entirely yellow, 8 one-half longer than 9. Superior appendages about equalling 

 10, pale brown, divaricate at a right angle. Seen from above the inner margin is 

 straight, the outer margin ends in a stout tooth, beyond which it is cut to a long acute 

 point. Seen from the side each is gradually narrowed to a pointed apex, with a large 

 acute tooth directly under the basal fourth, not visible at all from above. Inferior 

 appendage with branches more divaricate, shorter, very little upcurved, ending under 

 the apex of the lateral tooth. 



One finely coloured S taken by Mr. Adolph Hempel, in Orange 

 Co., Fla., on the 21st of April, 1897. 



At the same time Mr. Hempel took a ProgompJms obscurus, Ramb., 

 with its skin, in transformation. While the nymph was known by fair 

 supposition, it appears not to have been reared before. 



Mr. Hempel sent me also a nymph of the extraordinary type 

 referred by Hagen (Trans. Amer. Ent. Soc, XII., 277, 1885) to Aphylla 

 producta, Selys. It is time for someone to find the imago in Florida. 

 Goinphus iiinhraliis, n. sp. Mnle and female. —Ithaca, N. V. 

 Length, 50-54 mm.; abdomen, 35-39: liind wing, 30-32, 

 Brown and olive, varialjle. 



