356 
ZOOLOGICAL LITERATURE. 
1. Fork-cell with no appendicular vein at base. 
6. Rhopalia (Macq.). 
2. Fork-cell with an appendicular vein at base. 
a. Proboscis without apical lips. 4. Cepualocera (Lat.). 
b. Proboscis with apical lips. 
a. Both branches of the fork terminating in the first longitu- 
dinal vein. 
a. Small transverse vein at hind margin of wing wanting j 
proboscis long 5. Leptomydas, g. n. 
jS. Small transverse vein at hind margin of wing present j 
proboscis rudimentary. 9. Ectyphus, g. n. 
h. Only the anterior branch of the fork terminating in the first 
longitudinal vein 8. Miltinus, g. n. 
Cephalocera includes Midas longirostris, fasciatus, ivestermanni, ruJUhoraXj 
and callosus (Wied.), and M. botta (Macq.), C. fascipennis and nigra (Macq.), 
and three new species. 
Rhopalia includes spinolcB and olivieri (Macq.), and Midas vittatus (Wied.). 
R. vittata (Macq.) is distinct from the latter species j Gerstiicker proposes 
for it the name of R. algiriaa. 
Mydas includes 44 species, of which three are described as new. The 
previously described species are: — M. politus, mystaceus ( = anmdicorniSf 
Westw.), apicalis, leucops, ruhidapex, virgatus, rujicornis, tricolor^ tibialis, in- 
terruptus ( = tricinctus, Bell.), and nutospilus (Wiedonuinn) j M. nilidalus and 
ccoridosccns ( = gigantcus, Thunb.) (Olivier) j M. dives, crassipes, macidi- 
ventris, pachygaster., basalis, senilis, and parvulus (Westwood) ; M. heros 
(Perty) ; M. bonariensis (Guerin) j M. gracilis, rnjiventris, tcstaceiventris, and 
incisiis (Macquart), and also M. vittatus (Macq.) changed to M. militaris 
(Gerst.) on account oi 31. vittatus (Wied.) j M. igniticurnis (Bigot) (^=.lugens, 
Phil.)j M. clavatus {Dtavy^—Jilata (¥n\).')=asiloides (De Qi) = atratus (]\Iacq.)j 
31. fulvift'ons (Illiger) ; (Walsh) j M. rubrocinctus (Blanchard) j 
Apiophora paulseni (Philippi) j M. bitceniatus and subinterruptus (Bellardi) ; 
M. venosus, lideipennis, and simplex (Loew), and 31. rufiventris (Loew) 
changed to 31. ventralis (Gerst.) on account of 31. rujiventris (Macq.) j and 
31. bifascia and incipiens (Walker). 
Dolichogaster includes only M. brevicornis (Wied.). 
New geneva : — 
Diochlistus, g. n., Gerstiicker, 1. c. p. 73. (See table, p. 356.) Sp. D. mitis, 
ep. n., Gerst. ibid., pi. 1. lig. 1, Swan River. 
Triclonus, g. n., Gerstiicker, 1. c. p. 75. (See table, p. 356.) Sp. Midas 
hispinifer (Westw.) = Ceja A. gracilis M. clavata (Macq.); 31. melleipennis 
(Westw.) j 31. auripennis (Westw.) (Macq.); 31. effr actus 
(Walk.). 
Mitrodetus, g. n., Gestacker, 1. c. p. 76. (See table, p. 355.) Sp. Ceph. den- 
titarsis (Macq.)=a/iic/nc^a (Blanch.) = (Phil.) ; C. leucotricha (Phil.) ; 
C, dimidiata (Phil.). 
Leptomydas, g. n., Gerstiicker, 1. c. p. 81. (See table, siqn’d.) Sp. 3L 
lusitanicus (W ied.)== fuhiventris (Duf.) ; 3f. cinctus (Macq.); 31. rujipes 
(Westw.); M. lineatus (Oliv.) ; 31. dispar (Loew). Sp. n. L. humeralis, 
Gerst. 1. c. p. 82, pi. 1. fig. 2 ; L. nivosus, Gerst. 1. c. p. 83, and L. paganus, 
