THIONIA. 125 
In the male the last abdominal segment appears to be produced and furnished with a tooth beneath, and the 
anal process is blunt at the apex. 
Long. cum tegm. 8 millim.; lat. ad hum. 3-34 millim. 
Hab. Mexico, Jalapa (coll. Ball). 
I have seen only one specimen of this insect, which ought perhaps to be referred to 
another genus, but it possesses the venation and the bispinose tibie of Thionia. 
8. Thionia pictifrons, sp.n. (Tab. XII. figg. 22, 22a, 0.) 
Sat elongata; capite pronoto angustiori, vertice subquadrato, fronte latitudine longiori, nitida, nigra, testaceo 
: eleganter ornaté; pronoto brevi, antice ad medium angulato, ad latera anguste extenso, testaceeo ; 
scutello testaceo, unicolori, vel ad partem fuscato; tegminibus elongatis, haud latis, reticulatis, viri- 
descenti-testaceis ; alis amplis, pellucidis, fumosis, areis venis magnis reticulatis, vend arew interioris 
quatuor- vel quinque-furcata ; pedibus viridescenti-testaceis, tarsis plus minusve nigrescentibus. 
Mas segmento ultimo ventrali profunde emarginato, processu anali longo, angusto, apice truncato. 
A somewhat elongate species, with the tegmina and legs of a greenish-testaceous colour; vertex subquadrate, 
raised at the sides; forehead a little longer than broad, slightly narrowed towards the vertex, dark, with 
circular testaceous markings enclosing a cruciform marking; pronotum short, angular in front, extended 
towards the sides; scutellum rather large; tegmina subparallel, rather narrow, reticulate; wings very 
large and ample, smoky, with strong reticulate veins, those of the interior area throwing off four or 
five branches. 
In the male the last ventral segment is strongly and squarely emarginate, and the anal process is long, narrow, 
and hairy, and subtruncate at the apex. 
Long. cum tegm. 9 millim.; lat. ad hum. 5 millim. 
Hab. Mexico, Omilteme and Xucumanatlan in Guerrero 7000 to 8500 feet 
(H. H. Smith). 
The Omilteme specimen is figured. 
9. Thionia conspersa, sp. n. (Tab. XII. figg. 23, 23 a.) 
Grisea, antice punctis minutis fuscis dense aspersa ; capite pronoto angustiori, vertice subquadrato, fronte haud 
lata, subparallelé, carinéd media distincté; scutello sat magno; tegminibus opacis, sed subpellucidis, 
lateribus leviter rotundatis, reticulatis ; pedibus griseo-testaceis, tarsorum unguibus fuscis. 
Femina segmento ultimo ventrali simplici; processu anali longo sat tenui. 
Of a griseo-testaceous colour, with the whole body more or less thickly sprinkled with very minute dark spots, 
which are plainer in front than behind ; head narrower than the pronotum, the vertex subquadrate, with 
raised sides; forehead not broad, strongly keeled; scutellum rather large, plainly longer than the 
pronotum, with two oblong impressions, set somewhat widely apart ; tegmina opaque, but pellucid, with 
the sides gently rounded and not angled (if viewed laterally), the humeral callosities distinct, the venation 
coarse, with finer reticulation ; legs griseo-testaceous, the tarsal claws dark. 
Female with the last ventral segment simple, and the anal process long and rather slender. 
- Long. cum tegm. 6 millim.; lat. ad hum. 24-3 millim. 
Hab. Guatemata, Cerro Zunil 4000 feet (Champion). 
10. Thionia caviceps, sp. n. (Tab. XII. figg. 24, 24a.) 
Sat nitida, subovalis; capite parvo, pronoto multo angustiori, vertice ante oculos distincte producto, excavato, 
marginibus valde elevatis, fronte latitudine longiori antice latissima, postice sensim angustata ; clypeo 
‘BIOL. CENTR.-AMER., Rhynch. Homop., March 1905. —  *17 
