518 Prof. J. 0. AVestwood's de.scn'ptiuns, S^-c. 



parum longior, basi palpis duohus gracilibus curvatis 

 iiistructa. Thorax ovatns, antice tnmcatus, capite latior, 

 scutcllo scmicirculari. Abdomen valde clongatnin, gracile, 

 dci)rcssum, segmcntis singulis basi trans\ersini bi-im- 

 prcssis serieqnc transversa punctorum magnorum inter 

 basin et primam imprcssionem notatis. Pedes 4 antici 

 graciles, 2 postici niulto robustiores et longiores, tibiis 

 apice bicalcaratis, tarsis parum dilatatis, articulo basali 

 fere longitudinem femorum requanti. A\x. mediocres, 

 celhila postero-discoidali tres venulas emittenti ; veuis 

 duabus postcostalibus apicalibus rctro-curvatis. 



Species unica Lej)tynoma sericea. 

 (PI. VI. fig. 7 and details.) 



Pufo-fusca,tliorace linca lata mediit (e capite ad scutellum 

 extensa), alterisque duabus angustis latcralibus sinuatis 

 brunneo-castaneis sericie aurea margiuatis ; abdomine 

 fusco, sericie argentea vestito; alis fuscescentibus, venis 

 majoribus obscure uebulosis, pedibus lutescentibus, posticis 

 obscurioribus. 



Long. corp. lin. 7; probosc. lin. 4 ; expans. alarum lin. 11. 



Habitat Damara Land, Africa3 nierid. In ]\Ius. 

 Hopeiano Oxonice. 



DESCRIPTION OE THE PLATES. 

 PLATE V. 



Fig. \. Panojis Lamarcldaiivs; la, head seen from above; 15, head seen 



from the front; Ic, head seen sideways; \d, right wing; 1^, 



characteristic part of left wing. 

 Fig. 2. Aj)Sona muscaria; 2a, head seen from above; 25, head seen in 



front; 2c, antenna; 2d, wing. 

 Fig. 3. Leucojjsina Odyneroides; 3a, head and humeral angles of thorax, 



seen from above; 35, head seen in front; '6c, wing. 

 Fig. 4. Megaluhn.'^ pictus; 4fl, wing. 

 Fig. 5. Mcfjalyhns cjracilis (magnified); 5^7, head seen from above; 55, 



head seen from the front, with the base only of the i)roboscis; 



he, head seen sideways ; hd, antenna. 



PLATE VL 



Fig. 1. rtcrodo7itia dlmidiafa ; li?, wing. 



Fig. 2. I'ialea? lutescens; 2tf, head seen from above; 27y, head seen side- 

 ways ; 2c, wing. 



Fig. 3. Pialeoidea maf/na; 3a, head seen from above; 35, head seen side- 

 ways; 3c, wing. 



Fig. 4. Kothra hicolor ; ia, head seen in front; 45, antenna. 



Fig. .5. Afttomrlla ajiiformig; 5a, wing. 



Fig. 0. Astomella honihiformia, wing. 



Fig. 7. Lcpfynovia aericca ; 7(7, head Focn in front, with base of proboscis; 

 75, head seen sideways ; 7r, antenna; 7^/, wing. 



