48 GENERIC SYNOPSIS. 
LIBELLULA Linn. —— 15sp. L.depressa Linn. Curtis 712. 
Ocelli in a triangle, generally broad and depressed ; anal angle of posterior wings 
rounded in both sexes. 
[Platetrum Newm., L. depressa. Leptetrum Newm., L. 4-maculata. Orthetrum 
Newm., L. cancellata. Sympetrum Newm., L. scotica.] 
Subfamily 2. Agrionides Westw. (Agrionide Leach. ) 
AGRION Fab. Lisetiura p. Linn, 13 sp. L. puella Linn. Steph. 6. pl. 29. f. 4. 
Wings membranous ; stigma rhomboidal ; areolets mostly quadrangular. 
LESTES Leach. Acrion p. Fab. 3sp. L. viridis V. L. 
Wings membranous ; stigma large, oblong-quadrate ; areolets mostly pentagonal. 
CALEPTERYX Linn. Acrion p. Fab. 4 sp. L. virgo Linn. Donov. 36. f. 1. 
Wings coriaceo-membranous ; stigma obsolete; areolets extremely numerous. 
Sect. II. Susnecromorpnotica Westw. 
Family 6. MYRMELIONIDZ& Leach. 
(There is no British species of this family. ) 
Family 7. HEMEROBIID4 Westw. (Hemerobidx Leach.) 
OSMYLUS Latr. Hemerostus p. Fabr. 1 sp. O. maculatus Fab. Sam. pl. 7. f. 4. 
Ocelli three ; placed in a triangle on the forehead. 
DREPANEPTERYX Leach. Hemerosuus p. Linn. 1 sp. H. phalenoides Linn. 
Ocelli 0; anterior wings very broad ; posterior margin subfaleate. 
CHRYSOPA Leach. WHemerosius p. Linn. 13 sp. H. perla Linn. Curt. 520. 
Ocelli 0; wings entire ; antenne cylindrical ; labrum notched. 
HEMEROBIUS Linn. p. ——— 32sp. H. hirtus Linn. Curt. 202. 
Ocelli 0; wings entire; antennz submoniliform ; labrum entire. 
3 v, 
CONTOEDE RY X Cure) on ss ee: } Bap) mea parila aval 
Matacomyza Wesm. 
Tarsi 5-jointed ; wings covered with white powder; with few nerves, the nerves 
disposed nearly alike in all the wings ; labial palpi terminated by a large ovate 
joint. Curt. 528. 
Family 8. STALIDZ Leach. 
SIALIS Leach. Srmpuis p. Fab. 1 sp. Hem. lutarius Linn. Pictet, Ann. Sc. Nat. 
_ Ocelli 0; wings deflexed ; tarsi 5-jointed, fourth joint bifid. (N.S. 5. pl. 3.) 
Family 9. PANORPIDZ Leach. (Panorpate Latr.) 
PANORPA Linn. ——— 5sp. P. communis Linn. Curt. 696. 
Wings four, large ; mandibles bidentate ; abdomen ¢ long, recurved, armed with 
a forceps. 
BOREUS Latr. Panorra p. Linn. 1 sp. P.hyemalis Linn. Curt. 118. 
Wings in ¢ rudimental, in 9 obsolete; mandibles multidentate ; abdomen ¢ 
short, unarmed. 
Family 10. RAPHIDIIDZ Leach. (Raphidini Latr.) 
RAPHIDIA Linn. ———— 5Ssp. R. ophiopsis Linn. Curt. 37. 
Prothorax long; ovipositor 9 long and exserted. 
3D? + 
Family 11. MANTISPIDZ Westw. 
(There is no British species of this family.) 
