THIONIA.—PICUMNA. 127 
T’. soluta will probably have to be referred to a new genus, when more material is 
forthcoming. 
12. Thionia stipes, sp.n. (Tab. XII. figg. 26,264; 266, genitalia, ¢; 27, 2, 
genitalia.) 
Elongata, robusta, parallela, brunnea, plus minusve variegata ; capite brevi, lato, oculis magnis, vertice trans- 
verso, fronte subquadrata, hac et clypeo carinatis; vertice, pronoto et scutello fere equilongis ; pronoto 
rotundato producto ; scutello tricarinato ; tegminibus parallelis, ad medium plus minusve callose dilatatis, 
fere unicoloribus, vel brunneo-fusco et testaceo variegatis ; venis distinctis, ad apicem reticulatis; pedibus 
testaceis, vel ad partem fuscatis. 
Mas laminis genitalibus antice rotundatis, deinde contractis, et auriculato-dentate productis ; processu anali 
perbrevi, lato, ad apicem vix bifido. 
Femina segmento ultimo ventrali ad medium impresso et aperto, processu anali longiori, lato, distincte ad 
apicem bifido. 
A long, robust, parallel-sided species, castaneous-brown, almost unicolorous or variegated with darker and 
lighter colour ; head short, very broad, nearly as broad as the tegmina at the widest ; vertex transverse, 
frons subquadrate, keeled, the vertex, pronotum, and scutellum of about equal length; pronotum produced 
at the sides to about the middle of the eyes, which are very large and prominent; scutellum tricarinate ; 
tegmina parallel, with a more or less evident callose prominence just before the middle, sometimes 
unicolorous, but more often variegated, the veins distinct, but not so regular as in some of the other 
species of the genus, the apex reticulate; wings rather smoky ; legs testaceous, partly fuscous. 
Male with the genital plates rounded in front, then contracted and impressed, and produced into an auriculate 
tooth, as seen from above; anal process short and broad. 
Female with the last ventral segment impressed and open in the centre, and with the anal process longer and 
plainly bifid at the apex. 
Long. cum tegm. 8-9 millim.; lat. ad hum. 3 millim. 
Hab. Panama, Volcan de Chiriqui, Bugaba (Champion). 
We have a fair series of this insect in our collection. The single specimen from 
Bugaba is of a unicolorous brownish-testaceous colour, with the venation a little more 
regular, but I cannot detect any structural difference. In its very broad head and long 
subparallel tegmina, 7’. stipes differs very much from the other species of Thionia; the 
venation, however, and the bispinose tibiz seem to show that for the present it had 
better be retained under the present genus. 
There are also in our collection single specimens of six or seven other species of 
Thionia or closely allied genera, but they cannot well be described without further 
- material. 
PICUMNA. 
Picumna, Stal, Stett. ent. Zeit. xxv. p. 52 (1864); Hemipt. Afr. iv. p. 207. 
The species of this genus are distinguished by having the radial, interior, and 
exterior ulnar veins forked, the interior area of the wings with one strong vein, 
and the posterior tibie armed with four spines, the two near the apex being strong 
and the one towards the base small or more or less obsolete. ‘They appear to be very 
variable insects. . 
*17 2 
