106 N. C. AGR. EXP. STA. BUL. 239 
NMV is labeled ‘“‘Mexico”’, but all other specimens seen were from French 
Guiana. If the present writer has correctly associated a male from French 
Guiana, the male genitalia fall within the range of variation of D. demissus 
(Fabricius). 
A female of Tettigonia cynthia Fowler, labeled “‘type” in RMS, was il- 
lustrated (fig. 99). It agreed with Fowler’s original illustration fairly well. I 
have seen a male from ‘‘New Grenada’’, also from RMS, which appears to be 
this species. I have not been able to find ‘“New Grenada” in gazeteers. The 
male genitalia, not illustrated here, are similar to those of Dilovopterus politus 
(Schmidt) (fig. 107). 
No specimens of the type-species, Dilobopterus decoratus Signoret, have been 
seen, and the identity of the species is unknown, but there can be no doubt 
that the original description applies to a species of the genus as here in- 
terpreted. 
The lectotypes of Cicada demissa Fabricius, from ‘‘South America” and of 
Tettigonia cephalotes Walker, from British Guiana, both without abdomens, had 
the head, pronotum and scutellum fairly similar to the illustration of Dilobop- 
terus selvanus, n. sp., (below). None of the illustrations of the anterior dorsum 
published here were available for comparison at the time these lectotypes were 
examined. D. demissus is quite variable in these features, and D. selvanus is 
close; but since many of Fabricius’ species originally described from ‘South 
America”’ have turned out to be from the Guianas, and since D. selvanus has 
not been found in the Guianas, the synonymy in the list below is proposed. D. 
varius Osborn, judging from the original illustration, must also be placed in 
synonymy. 
The lectotype of Cicada discoidea Fabricius, without abdomen, was com- 
pared with representatives of all the species included here, and it appears dis- 
tinct. It is marked similarly to some specimens of Dilobopterus demissus 
(Fabricius), but it is shorter and less robust, and the head is more strongly 
produced. The lectotype lacks the aS anterior pronotal markings of the il- 
lustrations of demissus. 
The present interpretation of Dilobopterus dispar (Germar), of which the type 
has not been seen, rests on Signoret’s (1853a: pl. 2, fig. 2) illustration. Two 
specimens from the museum in La Plata, syntypes of Tettigonia windmiilleri 
Berg fall within the limits of the Germar species. The male is presently 
designated lectotype and has been so labeled. It bears labels: “Type” and 
‘“Banda/Oriental” and ‘“‘Dilobopterus/(Tettigonia)/Windmiilleri” and “567” — 
and ‘‘Col. Berg” and ‘‘Museo La Plata”’. 
The female lectotype of Cicada exaltata Fabricius agrees well with the ac- | 
companying illustration of the anterior dorsum of that species and females of 
the male illustrated here are as in the illustration of the lectotype. There is a 
marked variation in length of females of this species, from 7.5 mm to 8.2 mm. 
A male syntype of Tettigonia fastigiata Uhler from the USNM is presently 
designated lectotype and has been so labeled. It bears labels: “‘Windward 
side/St. Vincent, W. I./H. H. Smith; 190.” and a handwritten label: 
‘Proconia/fastigiata/Uhler.” and ‘“‘PRUhler; Collection” and ‘‘Cotype 
No./U.S.N.M.”. 
