650 CATALOGUE OF 



truncated at the tips, rather move llian lialf the length of the abdomen. 

 Hind wings lilackish ; veins black. Lengtii of the body 12 lines; expan- 

 sion of the fore wings 13^ lines. 



a. Philippine Isles. From Mr. Cuming's collection. 



Genus 21. OPIPTACRIS. 



Mas. Corpus glabrnm, gracile, fere cylindricura. Caput productum, 

 prothorace paullo lalius ; fastigium longi-conicum ; frons subrugulosa,sub- 

 iibjiqna, carinis intermediis bre?issimis. Oculi globosi, valde prominuli. 

 Antennee filiformes, graciles, corporis dimidio multo longiores. Prothorax 

 cylindricus, marginibus rotundatis. Prosterni spina crassa, transversa, 

 subexcavata, non attenuata. Femora postica abdomine paullo longiora. 

 Aiae minimie. 



Male. Body smooth, slender, nearly cylindrical. Head elongate, a 

 little broader than the prothorax; tip of the vertex elongate-conical, 

 prominent; front slightly rugulose and oblique; inner keels only apparent 

 between the anteiinre; outer keels slight, diverging towards the face. 

 Eyes globose, very prominent. Antenna; filiform, slender, much more than 

 half the length of the body. Prothorax cylindrical ; transverse impressed 

 lines strongly marked ; fore border and hind border slightly rounded; hind 

 border more rounded. Prosternal spine thick, transverse, not more slender 

 towards the lip, which is obtuse and slightly excavated. Hind femora a 

 little longer than the abdomen ; hind tibiae much shorter than the hind 

 femora. Wings rudimentary. 



1. OpIPTACRIS HILARIS. 



Mas. Flava ; caput apud os nigrum ; antenna picea, basi Jlav<B ; pro- 

 thorax., femora qualuor anteriora genuaque postica nigra. 



Male. Yellow, shining. Head black about the mouth. Eyes 

 a»neous. Antennee piceoiis, yellow at the base. Prothorax, four anterior 

 femora and hind knees black. Length of the body 10 lines. 



a. New Hebrides. 



Genus 22. SYNTOMACRIS. 



Mas. Corpus gracillimum, fere cylindricum. Caput convexum, pro- 

 thorace paullo latius; fastigium conicum, planum, valde prominulum ; 

 lions subretracta, carinis quatuor bene delerminalis. Oculi elliptici, magni, 

 valde prominuli. Anlennip filiformes, gracillimBe, corpore breviores. Pro- 

 thorax brevis, dense punctatus, lineis qualuor transversis bene delerminalis, 

 marginibus rotundatis. Prosterni spina gracilis, acuta, subcompressa. 

 Alae anticae angustse, corpore paullo breviores. 



Male. Body very narrow, nearly cylindrical. Head smooth, a little 

 broader than the prothorax ; vertex convex, very narrow between the eyes, 

 its tip flat, conical, very prominent ; from slightly oblique, with four distinct 

 keels; inner keels diverging slightly towards the face ; outer keels nearly 

 parallel. Eyes elliptic.tl, large, very prominent. Antenna filiform, very 

 slender, rather shorter than the body. Prothorax short, thickly punctured. 



