PHILIP P. (^ALVEHT. 85 



appendage oiie-fiftli shorter, reaching backward as far as the last denticle of the 

 superiors, luteons with blackish margins, of tlie usual form, a])ex ending in two 

 upturned denticles. 



Genitalia of 2. Anterior lamina more prominent than the other ])ieces ; viewed 

 in profile its anterior surface shows a small hump near the middle; apex emar- 

 ginate. Hamule bifid in its apical half, anterior branch terminating in a .sharp 

 slender point which is bent nearly at right angles and directed outwards (laterad ) ; 

 posterior branch wider (about twii^e when viewed in profile), of nearly equal 

 length, its apex rounded, not hooked. Genital lobe projecting to the .same dis- 

 tance as the anterior hamular branch, its width equal to its length wlien viewed 

 in profile (PI. I, fig. 12). 



Wings hyaline, nncolored, except for tlie faintest trace of pale yellow on hind 

 wings along.side of memhranule and reaching out about one cell. Reticulation 

 blackish except the costa, which is yellowish. Pterostigma ochre, surmounting 

 two and parts of two other cells. Membraniile cinereous except at the base, whei'e 

 it is for a small area whitish. 



Front wings: 16 (right; 15 'left) antecubitals, last continuous, 1.3 (right) 11 (left) 

 postcubitals, one hypertrigonal, triangle with one cross-vein, internal triangle of 

 4 I right) 3 (left) cells, three rows of posttriangular cells to the level of the nodus, 

 one suhmedian cross-vein slightly farther than the level of the first antec^ubital. 



Hind wings: 11 (right) 12 (left) antecubitals. 11 (right) 12 (left) postcubitals. 

 no hypertrigonals, triangle free, its inner side in prolongation of the arculus, no 

 internal triangle, two rows of posttriangular cells between the short sector and 

 first sector of the triangle to not quite as far as the level of the origin of the 

 median sector, sectors of the triangle slightly separated at origin, one suhmedian 

 cross-vein slightly nearer than the level of the first antecubital. 



All wings : Arculus slightly beyond the second antecubital, next supplementary 

 sector below the subnodal separated from it by two rows of cells at its greatest 

 distance, ''loop nervure" below the short sector separated from it by one row of 

 cells. 



T(»tal length .lO mm. Abdomen 34. Front wing 36.5. Hind wing .34.5. Pter- 

 ostigma: front wing 3.6. hind wing 4. ; hind tibia 6. 



I have tabulated the characters separatinj^ i>'<(?»ima/is and Wrightii 

 Selyi'^, which is but a race, in Proc. Acad. Nat. Sci. Phila., 1898, p. 

 U5. 



58. labellula clirysostigina B. P. 8.57. [Orfhefrnm.'] 



testacea, fusco-variegata ; costa alarum hyalinarum nee non venis 

 transversis inter subcostam et radium albidis ; stig-matibus fulvis 

 nigro marginatis. 



% . corpora pruinoso, abdomine toto fusco. 



9 . vitta clorsali thoracis flava, segmentis abdominalibus in medio 

 testaceis. 



Von Teneriffa, in v. Winthem's Sammlung. 



Two males in the M. C Z. are thus labeled — One, the male of tlie 

 above description, with the black abdomen pruinose at base, has the 

 written pin-label " L. auristigma Br. (in copula captaj) * Teneriffa" ; 

 the other and younger male, the female of the description, has the 



TRANS. AM. ENT. SOC. XXV. SKPTEMBEE, 1898. 



