TiLLYARD.— Two New Species of May-flies from New Zealand. 229 
Abdomen deep chocolate-brown, faintly mottled with somewhat paler 
brown; in shape slender subcylindrical, ы narrowed at 5-7, broaden- 
ing again at 8-9; 9 much wider than broader apically than basally. 
Cerci 23 mm. long, dark chocolate- ides strongly formed, slightly hairy, 
the segments cylindrical with narrow blac k ba sal rings. Appendix dorsalis 
vestigial, 1 mm. long, with few segments. 
Appendages of the same type as in J. hudsoni McL., but with the 
following differences : Forceps basis slightly shorter and eut off obliquely 
on either side of its posterior margin, which, between the bases of Me 
two black dots on it. Taite with segment 1 broad, as in J. hudsoni MeL., 
but more sharply angulated apically on the inner side ; ; segment 2 very 
dao ene 
Fie. 3. xd view of. oe appendages in 2 т, Ichthybotus Eaton: а, in 
color n. sp. n I. hudsoni McL. 2, 3, 4, the four segments of 
ас Кисер 9, 10, the last two учеба segment: : ad, greg dorsalis ; 
c, cereus (the right cereus is omitted); fb, forceps basis; p, peni 
Fra. 4.—Left renee view of ma ale appendages D the genus TeMhghotus Fato a, in 
I. nee Spey) 5j ml hudsoni 14. Right cercus d right 
bis S omitted. ( For К lettering see le 
Ето. ког of ventral valve in the female of a, Ichthybotus bicolor n. sp., and 
udsoni MeL. 14. 
oe (but not so long as in I. hudsoni MeL. ), narrower, and with a row of 
nute hairs along the basal two-thirds of the inner margin ; segments 3-4 
vis short, subequal. Penis more prominently lobed than in I. hudsoni 
McL., each lobe carrying a set of minute stiff hairs. rei 23 mm. long, 
dark chocolate-brown, strongly qon = hairy, Seed segments 
rings son 
in fig. 3, saad СРЕ in fig. 4 ot f. heben NL 
s very dark =a gi and its brown hindwings, as well as by the 
оа differences ш» for the appendages. 
