84 Families and (iknera of 



"Generis Ee typhi i)n)xii)ium, diftert : anteiinis elontratis, seji- 

 inento j)enultiino eyliiidrico, ultiirio. $, (nreitcr diiplo lonfjiore. 

 compresso, basi paruni dilatato, apice fibtnso aeuininate 9' d'lpl" 

 breviore, obtusiore, abdoniiiiis seii^mento ultimo inerini. cyatbiformi, 

 utrinqiie, paruiii dilatato. (Loii":. 20iiiiii. undique niijer, abdornine 

 iiitente, alis violaceo micantibus, extreiiio apice albidis. — P. pli^'I- 

 locerus. Rocky Mts.) Phyllomidas." 



Midas Fabricius, Eutoni. Syst. IV, 252, 1794. 

 Leptomidas Gersta'cker, Stett. Ent. Z. 1868, 81. 

 ECTYPHUS Gersta^cker, Stett. Ent. Z. 18(58, 92. 

 Phvlf-omidas Bigot, Bullet. Soc. Ent. Fr. 1879, H2. 



BOMBYLID.E.* 



Medium to .small-sized flies; often with abundant, long, delicate 

 pile. Antennse usually short, composed of three joints, the third 

 simple, with or without a terminal style. Ocelli present; eyes in 

 the male separated or contiguous. Proboscis usually projecting 

 from the oral cavity and slender; sometimes short, with broad la- 

 bella. Legs modei'ately long, weak, with short bristles or spines : 

 empodia rudimentary; pulvilli sometimes rudimentary. Wings often 

 with dark markings; two or more submarginal, three or four jioster- 

 ior, cells ])resent; anal cell closed in or near the border, or narrowly 

 open. 



Flower flies, found in the bright sunshine hovering over blossoms, 

 or resting on sunny paths, sticks or stones, rarely on leaves. Lar- 

 va?, so far as known, parasitic upon bynienoptera and orthoptera : 

 pupae free. 



1. 'i'he bifurcation of the second and third veins takes place oppo- 



site, or nearly- opposite, the small cross- vein ; the second vein 

 forms a knee at its origin from the y)ra^furca : the third vein 

 in a straight line with the prasfurca. . . . . '^, 

 The bifurcation of the second and third veins takes j)lace some 

 distance before the snuill cross- vein, at an acute angle; the 

 second vein does not form a knee at its origin from the prw- 

 furca. 10 



2. Three or more submarginal t;ells •> 



Two submarginal cells. ....... 7 



* Table reproduced from Osten Sacken, Biologia Central!- Americana, 

 Diptera, p. 75, 1886. 



