114 HEMIPTERA-HOMOPTERA. 
1. Acutalis fusconervosa. 
Acutalis fusconervosa, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 491’. 
Hab. Mexico (Sallé), Atoyac in Vera Cruz (Schumann), Orizaba (Sallé & H. H. 
Smith), Chilpancingo in Guerrero, Teapa in Tabasco (HZ. //. Smith); GuaTeMaLa, San 
Juan and Senahu in Vera Paz, Las Mercedes, Panajachel (Champion); Nicaragua, 
Chontales (Janson); Panama, Bugaba, Volcan de Chiriqui, David (Champion). — 
Cotomsral. 
This is an extremely variable species as regards colour; the pronotum is either 
of a light unicolorous testaceous, in which case the insect superficially bears an 
exceedingly close resemblance to Phacusa pallescens, or has a darker patch in front, 
which varies from light castaneous to almost. black, and is often broken by lighter 
patches; occasionally the pronotum is greenish, with a testaceous patch in front; the 
veins of the tegmina also vary in depth of colour. The darkest specimens are very near 
A, nigrinervis, but even in extreme examples they may be known by the fact that the 
dark colour is always more or less broken or suffused before the apical process, and 
that the veins of the tegmina are less marked; at the same time it is possible that 
A. nigrinervis may be merely an extreme local variety of this species. 
Its variability naturally creates a doubt with regard to species in allied genera, of 
which, as yet, only small series are known; probably, as time elapses, several of them 
will be classed together, when connecting-links are discovered between them. 
2. Acutalis nigrinervis, sp. n. (Tab. VII. figg. 24, 24a.) 
Acutalis nigrinervis, Stal, in litt. 
Preecedenti affinis, nitida, capite nigro, margine anteriori late flavo-testaceo ; pronoto nigro, vitta supra frontem, 
aliique utrinque laterali antice ante oculos marginem attingenti, postice ad processum apicalem extensa, 
apice ipso toto nigro; tegminibus hyalinis, venis crassis, nigris; abdomine pedibusque testaceis, interdum 
ad partem leviter infuscatis. 
Black, shining, with the front part of the head, a band above the forehead, and a band at each side of the pronotum 
light yellowish-testaceous, sometimes with a greenish tinge; the two lateral bands touch the margin in 
front, and behind merge in the dark colour of the apical process; upper surface thickly and rather 
distinctly punctured; tegmina hyaline, with large thick dark veins; abdomen testaceous; underside of 
front parts mostly dark; legs testaceous, with the tarsi and sometimes the upper part of the tibiw and 
femora more or less infuscate. 
Long. 5 millim.; lat. int. hum. 2 millim. 
Hab. Mexico (Mus. Vind. Ces.), Orizaba (Pf. D. G. & H. H. 8.; Bilimek, in Mus. 
Vind. Ces.), Vera Cruz, Fortin! (Hl. H. Smith), Atoyac in Vera Cruz (Schumann). 
The differences between this insect and the preceding have been pointed out above. 
The name A. niqrinervis is attached to the insect in the Vienna Museum collection, and 
is apparently a manuscript name of Stal’s; he does not, however, appear to have ever 
published a description, and this is the case with several other species, and great 
confusion is caused thereby. An example from Orizaba is figured. 
