158 me. walker's catalogue of iiomopteeotjs insects 



84. Benna clarescens, n. s., mas. Testacea, halteribus apice albis, alia 

 subcinereis, anticis extiis albido lituratis, fascia interiore fuscA. 



Male. Testaceous ; like 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. 



85. Benna pejestans, n. s., foem. Ferruginea subtils fulva, alis subhyalinis, 

 anticis triente basali ferruginea fusco marginata. 



Female. Ferruginous, tawny beneath; like the two preceding species in 

 structure. Wings nearly hyaline ; third part from the base of the fore 

 wings ferruginous with a brown border ; veins testaceous. Length of the 

 body 2| lines ; of the wings 7 lines. 



G-en. Seeida, n. g. 



Caput subascendens, lateribus elevatis angulum acutum utrinque fingentibus ; 

 vertex linearis ; frons angusta, carinata, antice dilatata ; facies lanceolata, 

 subcarinata. Thorax tricarinatus. Alee anticse angulis rotundatis, venulis 

 costahbus venisque marginalibus plurimis. 



Head sHghtly 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 rounded angles ; marginal veins and costal veinlets very numerous, 

 the latter oblique and parallel. 



86. Seeida latens, n. s., mas. Fulva, frontis lateribus basi prothoraceque 

 nigro guttatis, alis anticis guttis paucis discalibus costa lineisque transversis 

 exterioribus nigricantibus, apice cinereo-hyalinis lineolis duabus obliquis 

 nigricantibus. 



Male. Tawny. Sides of the front at the base and pro thorax with black dots. 

 Fore wiiigs with the costa, some discal spots, and some exterior transverse 

 lines blackish ; tips cinereous hyaline, with two short oppositely oblique 

 black lines. Length of the body 4 lines ; of the wings 10 lines. 



87. Seeida eeevens, n. s., mas. Fulva, fronte viridi sat lata, marginibus 

 carinaque fulvis, alis apice fuscis, anticis fusco bifasciatis. 



Male. Tawny. Front green, moderately broad, with the borders and the 

 keel tawny. Wings with brown tips ; fore wings with two brown bands, 

 one near the base, the other oblique irregular and beyond the middle. 

 Length of the body 3 lines j of the wings 8 lines. 



This species differs much in the structure of the front from S. latens, which 

 is the type of the genus. 



Gen. Paeicana, n. g. 



Caput lseve, planum ; vertex brevis ; frons longi-subquadrata ; facies lan- 

 ceolata. Antenna arista longa gracili. Thorax tricarinatus. Alee anticee 

 apice latse rotundatse, areolis mediis et marginalibus longitudine sub- 

 aequalibus. 



Head smooth, not keeled nor with elevated borders ; vertex short ; front 



