980 
Male and Female. Testaceons. Mead with elevated borders; front and face very 
narrow. Halteres with white tips. Wings very pale cinereous; veins blackish 
testaceous at the base; fore wings with a black basal dot and with a whi- 
tish stigma, their transverse veinlets fewer than those of B. capitulata. 
Length of the body 8 lines; of the wings 8 lines, 
SA. BENNA CLARESCENS, n. s., Testacea, halteribus apice albis, alis subcinereis, 
anticis extus albido hituratis, fascia interiore fusca. 
Male. Testaceous; hike the preceding species in structure. Halteres with white 
tips. Wings greyish; fore wings with a brown band before the middle, and 
with exterior whitish marks; veins testaceous. Length of the body 2% lines; 
of the wings 7 lines. 
S5. BEXNA PRAESTANS, n. S., fceem. Ferruginea subtus fulva, alis subhyalinis, 
anticis triente basali ferruginea fusco marginata. 
Female. Ferruginous, tawny beneath; like the two preceding species in struc- 
ture. Wings nearly hyaline; third part from the base of the fore wings fer- 
ruginous with a brown border; veins testaceous, Length of the body 2} li- 
nes; of the wings 7 lines. 
Gen. SERIDA, n. g. 
Caput subaseendens, lateribus elevatis angulum acutum utrinque fingentibus ; 
vertex lincaris; frons angusta, carinata, antice dilatata; facies lanceolata , 
subearinata. Zhorax tricarinatus. Alae anticse angulis rotundatis, venulis cos- 
talibus venisque marginalibus plurimis. 
Head slightly ascending, with elevated borders, forming a slightly acute angle 
on each side in front of the vertex which is linear; front narrow, with a 
distinct keel, widening towards the face which is lanceolate, and has a slight 
keel. Thorax with three slight keels. Fore wings moderately broad, with 
ronnded angles; marginaf veins and eostal veinlets very numerous, the latter 
oblique and parallel. s 
36. SERIDA LATENS, mn. Ss, mas. Fulva, frontis lateribus basi prothoraceque 
uigro guttatis, alis anticis guttis paucis discalibus costa tineisque transversis 
exterioribus nigrieantibus, apice cinereo-hyalinis lineolis duabus obliquis ni- 
gricantibus. 
Male. Tawny. Sides of the front at the base and prothorax with black dots. 
Fore wings with the costa, some discal spots, and some exterior tranverse lines 
blackish; tips cinereous hyaline, with two short oppositely oblique black li- 
nes. Tength of the body 4 lines; of the wings 10 lines, 
87. SERIDA FERVENS, n. s., mas. Fulva, fronte viridisat lata, marginibus cari= 
naque fulvis, alis apiee fuscis, antieis fusco bifasciatis. 
Male. Tawny. Front green, moderately broad, with the borders and the keel 
tawuy. Wings with brown tips; fore wings with two brown bands, one near 
,e 
