Se ee a ee ee eee 
316 INSECTA SAUNDERSIANA. 
Dexia TENUIPES, Mas. 
Nigra ; caput argenteum ; thorax canus, subvittatus, seutello apice ferru- 
gineo; abdomen fulvum, maculis trigonis nigris vittatum ; antenne 
Sulve ; pedes fulvi, tibiis piceis, tarsis nigris ; ale subcineree. 
Black: head with a silvery white covering, clothed beneath and behind 
with white hairs; frontalia black, narrow, widening towards the feelers; 
facialia ferruginous, without hairs; epistoma prominent; lateralia tawny : 
eyes bare: proboscis black, slender, as long as the chest; palpi tawny, ex- 
tremely short: feelers tawny ; third joint linear, rounded at the tip, more 
than thrice the length of thesecond; sixth feathered with long hairs, much 
longer than the third: chest with a hoary covering, indistinctly striped in 
front, a little narrower than the head; transverse suture, hind border of the 
shield, sides and breast whitish ; tip of the seutcheon ferruginous : abdomen 
tawny, with white reflections, clothed on each side with white hairs, beset 
with very few black bristles, tapering from the base to the tip, much longer 
and narrower than the chest ; a large triangular black spot resting on the 
hind border of each segment : legs tawny, long and slender ; shanks pitchy ; 
feet black : wings very slightly gray ; prebrachial vein forming a very ob- 
tuse angle at its flexure, hardly bent inward near the tip; lower cross-vein 
with the two curves, the upper deeper than the lower: alule white, with 
pale yellow borders. Length of the body 4 lines; of the wings 9 lines. 
Dexia semiptora, Mas. 
Nigra, aurata, angusta; pectus albidum; abdomen testaceum; an- 
tenne fulva; pedes fulvi, tibiis ferrugineis, tarsis nigris; ale 
cinerea, ad costam subfusce. 
Body narrow: head with a very pale gilded covering; frontalia deep 
black, widening towards the feelers; facialia without bristles ; epistoma not 
prominent: eyes bare: proboscis black, with a tawny tip; palpi tawny: 
feelers tawny ; third joint linear, rounded at the tip, not nearly reaching 
the epistoma, more than twice the length of the second; sixth black, longer 
than the third, feathered with rather long hairs: chest with a gilded cover- 
ing: breast whitish : abdomen pale testaceous, long-obconical, much longer 
than the chest, with whitish reflections, black at the tip: legs tawny ; shanks 
