DIPTEEA. 



rather than at the anterior part of the head, so that the eyes are 

 always separated below in consequence of its interposition. Ocelli 

 seldom wanting. The fiagellum of the antennce more compact, some- 

 times in one piece (never having more than 8 joints in oui* native 

 kinds), mualli/ terminating in (one to three) ahnqMy sligliter joints. 

 Palpi short, projecting above the proboscis, or lying on it, appearing 

 externally inarticidated, the first joints, if there be any such clistinct, 

 being short. The veining of the wings is more easily reducible to one 

 type than in Nemocera* The anal areolet is closed, often at a distance 

 fi-om the margin, or if it reaches this, it is tapei-ed nearly to a point : 

 rarely it disappears with the anal vein. The inner or scutellar alulae 

 are often developed, sometimes so as to conceal the halteres. The 

 ungues are not toothed. The empodium is usually more slender than 

 the onychia. 



Hypoceea, Macq. == Trineuraj, Latr. 



Antennse prope epistoma, articulo uuo insigniore et arista. 



Mandibulse et maxiUse obsoletae. 



Palpi porrecti, exarticulati. 



Alee venis anterioribus vaHdis, ciun costale, circa medimn costae desi- 



nentibus ; posterioribus subtilissimis, simplicibus, disjunctis. 

 Coxse et femora crassa, compressa. 



EPROBOSCIDEA. 



Omaloptera, Leach. 

 Pupipara, Latr. 

 Homaloptera, Steph. ; Curtis. 



Antennse foveolis immersae prope os. 



Labium tubidosmn, superne fissum, basi inflatum, lingua tenui iuclusa 



et labro incmubente inter palpos porrectos fere vaginatum. 

 Pedes dissiti sterno lato. 

 Abdomen coriaceum, vix insectum. 

 ALse et halteres sgepius mutila vel luilla. 

 Ungues duplicati, vel triplicati. 



Add. Palpi extra fulcrum labii siti, nee cum eo exserendi. Ocidi 

 multiformes. Prosternum ultra capitis insertionem porrectum. Thorax 

 de.pressus. Alae ubi completse fere ut in Brachyceris. Abdomen basi 

 constrictum. Ungues et onychia imjiaria, utracpie ex adverso, i. e. unguis 

 major arolium minus subjectum habet et vice versa. Ungues ad scan- 

 sum apti. 



* The veins which run to the hind margin chiefly originate from an intermediate 

 axis, which divides into tlirec branches uoai- the root of the wing, and tliese arc 

 usually again subdivided, and connected by deflexion or by transverse veins. 



