230 PIPUNCULID^. 



lougiores. Oculi maria fronte contigui,foem. dlstantes. Foem. Abdomen 



apice incurvo lamelliformi. 



Body small, slender, pubescent, black, dull. Head transverse : face 

 orbicular, with a row of bristles on each side. Eyes large, ovate, with 

 a few bristles on each side. Ocelli 3, seated on a tubercle. Proboscis 

 slightly projecting. Palpi bare, clavate, shorter than the labium. 

 Labium short. Antennae 5-jointed, subsetaceous, pubescent, inserted 

 near the middle of the face, approximate at the base, nearly as long as 

 the head ; first and second joints beset with a few bristles ; first some- 

 what cyathifoim ; second larger, nearly oval ; third fusiform ; fourth 

 minute ; fifth long, setiform, hairy to the tip. Thorax subglobose ; 

 fore part very gibbous, and projecting over the head ; scutellum a 

 little elevated. Wings incumbent and parallel in repose. Alidse very 

 small. Halteres large, uncovered. Abdomen vnih six segments. 

 Legs simple, unarmed, almost bare ; tibise subclavate ; tips of the 

 tibiae slightly spurred ; hind tarsi slender ; hind metatarsi very long ; 

 onychia small, hairy. Male. Eyes connected. Tern. Eyes remote. 

 Abdomen ending in a recurved oblong plate. 



The Opetia appear in summer and autumn on leaves of slu'ubs. 



1. nigra, Mg. zw. vi. 357. 1 (1830) ; Mq. ; Zii.—lonchopteroides 

 {fcem.), Hal.; Ct. ! b. e. 489. 2. Nigra, alis cinereis ad costara 

 fuscis, abdomine nigro-fusco. Long. 1 ; alar. 2\ lin. 



Black, thinly clothed with black hairs. Eyes red ; facets of mo- 

 derate size. Wings grey, brown beneath the fore border ; veins black. 

 Halteres and abdomen dark brown. Legs clothed with very short 

 black hairs. 



Generally distributed. (E. S. I.) 



Family XXIV. PIPUNC UL ID JE. 



PiPUNCULiD^, Ct. SyrpliicE p., LI. Megacephali, Mg. CepJialopsides 

 p., LI. Syrphici, Eln. Pipunculini, Ztt. 



Caput hemisphcericum, oculis niaximis peristoma stringentihus, fronte et 

 epistomate angustissimis. Proboscis brevis, maxillis nuUis, palpis 

 erectis. Autennce articnlo tertio compresso dejiexo, arista dorsali sub- 

 erecta. Alee vena ambiente nulla, cubitali simplici, areola brachial! 

 utraque completa, lobo axillari rotundato. Tibiae apice muticae. 

 Abdomen segmentis sex. 



Head large, hemispherical, with concave occiput versatile on a pro- 

 jecting slender neck of prothorax. Eyes very large, bordering the 

 narrow peristoma, unarmed ; face and front narrow linear, the eyes in 

 the male sometimes meeting on the front. Ocelli three in a triangle 

 on the vertex. AntenncB shoit, the third joint compressed and dejlected, 

 hearing above a slender ascending arista, 3-jointed, the first two joints 



