86 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 57. 



in a straight line; Pa approximate to A3, nearer to A3 than to LI. 

 Lateral seta (LI) closely approximate to A3; on the level of Adf2; 

 puncture {La) postero-ventrad of LI, remote, nearly in a line with 

 LI and A3. Ocellar setae well separated; 02 equidistant from 

 01 and 03, postero-ventrad and approxiaiate to Ocellus /; 01 

 ventrad and approximate to Ocelli // and ///; 03 remote from and 

 ventrad to 02; puncture Oa postero-ventrad of Ocellus VI, \y'mg in 

 a line and about midway between 03 and S02. Subocellar setae 

 triangularly placed; puncture SOa nearly on a line betv.'^een SOI and 

 80?>, approximate to S03. Genal puncture {Ga) antero-dorsad 

 of seta Gl. 



Labrum with anterior lateral margins rounded; median incision 

 broadly triangular, m.odcrately deep; seta M2 postero-laterad of 

 Ml, slightly nearer to 7\Il than to M3; M3 and LA3 well back 

 from anterior margin of labrum; LaS back of the level of M3; 

 Lai and Ija2 closely approximate; Lai on the level of Ml; puncture 

 midway between Ml and M2. 



Epipharyngeal shield minute. Epipharyngeal setae triangularly 

 grou}-»ed near anterior margin of labrum ; short, sharply pointed, and 

 triangular. Epipharyngeal rods indicated by their posterior pro- 

 jections only ; these are rather short. 



Labium and maxillae normal; posterior half of submicntum broad- 

 ening out sharply. Maxillulae normal with well-developed spined 

 lobes. 



Pwpa. — (pi. 13, figs. 80, 81). Short; stout; abdominal segments 

 abruptly tapering; smooth; no hairs or spines except for a transverse 

 row of long, slender, shortly hooked, hair-like spines at extreme cau- 

 dal end; wings extending to ventro-caudal margin of 4th abdominal 

 segment; cephalic extremity rounded; epicranial suture present; ver- 

 tex represented by a narrow, long, triangular area adjacent to each 

 antenna; labrum, pilifers, and maxillary palpi well developed; labial 

 palpi represented by a small polygonal piece at extremity of labrum ; 

 pro and meso thoracic legs not extending cephalad between sculp- 

 tural eye piece and antenna; sculptured and glazed eyes distinguish- 

 able; femora of pro thoracic legs clearly indicated; pro thoracic legs 

 extending half the wing length; mesothoracic legs and antennae ex- 

 tending to tips of wings; metathoracic legs not discernible; suture 

 between 8th and 9th abdominal segments indistinct; dorsal suture 

 between 9th and 10th abdominal segments appreciable, bordered 

 cephalad by a prominent, flat, smooth, narrow ridge; spiracles small, 

 round, protruding; anal opening on ventral surface, rather well for- 

 ward of caudal end; genital and anal openings long, slit-like in both 

 sexes; no cremaster. 



Specific descnjdion — larva. — Full grown, 20-22 mm. long, by 3.5 

 mm. broad. Body whitish on underside suffused with faint pinkish 



