﻿323 



g. albomargiitata (Signoret.^ 



Tcttigouia albnniargiiiafa Sig-noret 1853 Ann. Soc. Ent. France. 



(3) I, PI. 10 fig-. 4. 



These three species are nnknown to me, and I regret also that 

 Signoret's descriptions remain unknown to me, as his 'Essai' 

 was wnpurchasable. The same author describes Tdtigonia vari- 

 color, 1852 op. c. II. 15, PI. I, fig. 15 from Honohilu, most prob- 

 ably in error, as no Tcfigonia is now known here and a not in- 

 considerable part of Signoret's collection is notoriously labelled 

 incorrectly. 



Tribe 2 Macroceratogoniini. 



Instituted for a single, new, genus Macroceratogonia which has 

 the general facies of the first tribe and also of the third, but a 

 very different head structure. The vertex is subhorizontal, flat, 

 subquadrangularly produced before the eyes, wider apically tlian 

 at the base ; ocelli on the vertex anterior to the apical margin of 

 the eyes. Antennal seta enormously long. 



Macroceratogonia, gen. nov. 



Pronotum, clavus, etc., finely punctured. Head slightly de- 

 clivous ; vertex at base less than ^ the width of pronotum apical- 

 ly ; lateral margins keeled, diverging somewhat sinuately, the 

 vertex being thus wider at apex than at base and nearly as long- 

 as wide ; apical margin slightly rounded ; basal % narrowly sul- 

 cate, anterior fourth transversely somewhat sinuately impress- 

 ed ; immediately below the impression and a little nearer to the 

 middle line than to the lateral margins are the conspicuous 

 ocelli. The crown is separated from the frons by a narrow, 

 well marked, continuous channel. The antennae are situated 

 almost at the antero-lateral angles, first segment small, rounded 

 bulbous, second small cylindric, seta enormously long, much 

 longer than the entire body. Frons narrow, and curves from 

 the insertion of the antennae ; clypeus elongate, parallelsided : 

 lorae curved exteriorly, not reaching the apical margin of the 

 face, extending basally beyond the clypeus. Pronotum round- 

 ed anteriorly, lateral margins posteriorly divergent, postero- 

 lateral angles rounded, posterior margin subtruncate. Tegmina 

 with 2 discoidal and 2 subapical cells, the exterior discoidal be 



