TETTIGONIA. 249 
35. Tettigonia lugubris. (Tab. XVI. fig. 7.) 
Tettigonia lugubris, Sign. Ann. Soc. Ent. Fr. 1854, p. 13, t. 1. fig. 13°. 
fab. Mexico! (Mus. Vind. Ces. & Mus. Holm.), Mexico city (H. H. Sinith). 
The ground-colour of this species varies from black to greyish-green. ‘The broad 
white or light band following the line of the claval suture will distinguish 7. lugubris 
from most of the allied forms. 
A dark specimen from the neighbourhood of the city of Mexico is figured. 
36. Tettigonia separanda, sp.n. (Tab. XVI. fig. 8.) 
Preecedenti valde affinis, sed capite multo magis producto, regulariter triangulari, oculisque vix prominulis 
distinguenda. 
Closely allied to 7. lugubris, but with the head longer and more regularly triangular and differently marked, 
the eyes less prominent and fitting more closely into the sides of the head ; the colouring and marking are 
also somewhat different (but this is very variable in different specimens of 7. lugubris); the tegmina 
are dark, with a broad light band at the claval suture, as in the preceding species. 
Long. 6 millim. ; lat. ad hum. vix 2 millim. 
Hab.. Mrxico, Omilteme in Guerrero 8000 feet (7. H. Smith). 
Several specimens. 
87. Tettigonia semirasa, sp.n. (Tab. XVI. fig. 9.) 
Sat robusta, postice sensim angustata, nitida, antice nigro-brunnea vel brunnea, postice brunnea, minute 
testaceo albidoque variegata; capite producto, triangulari, obtuse rotundato, oculis prominulis; metopidio 
testaceo, transversim nigro-lineato ; pronoto levissime sed distincte sculpturato, lateribus fere parallelis, 
postice leviter sinuato; scutello maculis duabus albidis variantibus, alteré ad basim, alterdque ad apicem, 
interdum deficientibus, instructis; tegminibus a tertid parte basali usque ad apicem albidis dense et 
minute irroratis, duabus utrinque notis immaculatis, alteré suturam attingenti alteraque pone hance sita 
conspicuis ; abdomine rufo vel nigro-fusco; pedibus testaceis. 
Shining, gradually narrowed behind, black or brownish-black in front, the tegmina brown ; head triangular, 
produced, with the eyes a little prominent, finely sculptured, with minute lighter markings, the 
metopidium with transverse testaceous dark and light lines ; pronotum finely rugose transversely, with 
obscure small testaceous markings, very slightly sinuate at the base; scutellum black, distinctly 
roughened in the middle, with two testaceous spots, one towards the base and one behind, sometimes 
one and sometimes both being absent; tegmina very finely but distinctly sculptured, with the hinder 
two-thirds thickly and sometimes obscurely sprinkled with minute greyish spots, which are absent from 
two large patches reaching nearly or quite to the suture, one a little behind the middle and one beyond 
this; wings fuscous; abdomen red or fuscous-black ; underside of the body and legs testaceous, the 
latter having the upperside of the anterior and intermediate tibiz more or less infuscate, and usually 
a black spot on the anterior femora. 
Long. 8 millim.; lat. ad hum. 2-23 millim. 
Hab. Mexico, Amula, Chilpancingo, and Omilteme in Guerrero, Cuernavaca in 
Morelos (H. H. Smith). 
A specimen from Chilpancingo is figured. 
BIOL. CENTR.-AMER., Rhynch. Homopt., Vol. IL, November 1899. *32 
