TRIMEROTROPIS. 167 
apice incisum. Costa facialis punetata, subparallela, frequenter ad ocellum subdilatata, 
ad frontem subangustata, ad verticem foveolata. Pronotum parum rugosum, parum 
elevate cristulatum, prozona postice haud vel obsoletissime scutellata; metazona (an- 
tum carinulata, processu rectangulo. Elytra variabilia, fasciata vel punctata, vel uni- 
coloria, vena anali nonnunquam confluente. Alæ disco basali sulfureæ, antice vitta 
humerali fusca. Femora postica intus dimidia parte basali nigra, margine supero flavo- 
sinuato, dehinc flavo-bifasciata, vel flavo et nigro 3-fasciata. Arolia inter ungues 
modice grandia, compressa. 
Genus in America septentrionali, ineluso Mexico, et in partibus meridionalibus 
Americæ meridionalis vulgaris; in America meridionali tropicali rarum. 
Ce genre semble se composer d’un assez grand nombre d’espèces. Nous n’en connais- 
sons qu’une partie et, faute de posséder les types de plusieurs autres, nous n’avons pu 
réussir à les collationner. Nous citerons en particulier les Ty. Juliana, obscura, cœru- 
lipes, similis, Seudd.; fontana, Thomas. 
Synopsis specierum. 
a. Elytra minus confertim reticulata, tertia parte apicali quadrato-reticulata ; fulvo-grisea, fusco- 
puncetata vel latiuscule nigro-fasciata; vena intercalata distincta, apice inflexa; areæ furcarum 
uhnarium latiuscule reticulatæ, secunda per venam spuriam divisa. Corpus gracilius, capite 
compresso, vertice inter oculos angustiore. Cristula pronoti subprominula, a latere visa bilo- 
bulata. 
b. Tibiæ posticæ sanguineæ. 
c. Alæ dimidio proximali sulfureo, dimidio distali infuscato .. ............. 1.tolteca, Sss. 
c,c. Alæ disco basali sulfureo, fascia arcuata fusca, parte apicali vitrea. 
d. Alarum fascia fusca modice lata, extus sinuata, lobos 3-4 marginis liberans. 
2, citrina, Sc. 
d,d. Alarum fascia fusca latissima extus recta, lobos apicis 2-3 liberans, 
f. fascia fusca marginem posticum ineludens ................... 3.laticincta, n. 
ff. fascia fusca in margine postico haud produeta............. ..4.monticola, n. 
b,b. Tibiæ posticæ cœruleæ. 
c. Alæ dimidiatæ, parte proximali sulfurea, parte distali infuscata vel decolore. 
dElyira fasciala; alæ ultra medium infuscatæ. .......:....0..... 5.fallax, n. 
d,d. Elytra punctulata; alæ ultra medium fusco-reticulatæ, vel spurcatæ. . .6.gracilis, Th. 
e,c. Ale fascia arcuata fusca, 
d. disco basali laete sulfureo, per fasciam nigram completam in margine antico orien- 
tem cincto, marginem posticum includente. 
e. Minor, fascia fusca extus recta vel angustata. ............... 7.pallidipennis, B. 
26. Major, 1AScia SCaiextuS Subsinnata, * 1:10. ., cc &.cincla, Th. 
d,d. disco basali sulfurescente, per fasciam fuscam angustam vel incomplelam, antice 
marginem anticum haud attingente sed cum vitta humerali in areum continua, postice 
in margine evanescente. 
