220 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



g'ularly arr;iu*ie(l, tlio laterals touching' the eye; eyes very large, ovate, 

 bare. 



Aiiteuna; inserte<l on the (;lypeus, 12-J(>iute(l in both sexes; in 9 cla- 

 vate, the club large, C-Jointed, thefuuiclar Joints (>longate, the first the 

 longest; m 5 long, filiforni. 



Maxillary palpi -t-jointed : labial paliti .•-Jointed. 



Mandibles tridentate. 



Thorax ovate, produced into a little no(;k anteriorly, the prothorax 

 visible from above as an arcuate line; niesothorax with U distinct 

 grooved lines; scntellum scniicircular', with a ridge behind; nietanotuni 

 with a semicircular inclosed space at base, the sides cariuated. 



Front wings with the submarginal vein distant from the costa, curv- 

 ing, and joining it at about the middle of the wing; marginal vein 

 punctiform; the postmarginal very long; stigmal rather long, obli(]ue, 

 ending in a little knob; basal vein distinct, Avith a basal cell. 



Abdomen very hmg fusiform, extending beyond the tip of the wings 

 when folded, the second, third, and fourth segments longer than the 

 rest, the fourth a little the shortest. 



Legs as in Macrotehua^ tibial spurs 1, 1, 1, basal Joint of hind tarsi 

 about 4 times as long as the second. 



A beautiful and distinct genus, remarkable for the large, semicircu- 

 lar inclosnre on the metanotum, which, in connection with the vena- 

 tion, renders the genus easy of recognition. 



Chromoteleia seniicyanea. s]). iiov. 

 (PL IX, Fig. 3. 9.) 



S 9. Length, 4.5 to o""". Head and thorax cyaneons, punctate; 

 abdomen sessile, very long, pointetl fusiform, ochraceons, punctate, the 

 first and second segments striated; first segment a little more than lialf 

 the length of the second; seccmd and third long, erpial, the three fol- 

 lowing segments shorter, subeqnal, the last two A'ery minute. An- 

 tennaj black, the scape yellow; in 9 ending in a G-Joiuted club, the 

 first funiclar Joint the longest, about one-half longer than the second and 

 uot quite twice the length of the i)edicel, the third funiclar Joint sub- 

 equal Avith the second, the fourth a little longer than thick and stouter 

 than the third; in $ subfililbrm, the first funiclar Joint twice the length 

 of the pedicel, the Joints after the third, except the last, about equal in 

 length, less than twice as long as thick, the last longer, ovate. Wings 

 fuscous, the nervures brown, the marginal vein punctiform, the basal 

 iiervure distinct, the stigmal a little curved, ending in a small knob. 



ITabiTAT. — St. Vincent, West Iiulies. 



Types in British ^luseum and National JNInseum. 



Described from 1 S and 1 $ specimen collected by Herbert II. Smith. 



