650 CATALOGUE OF 



tnmcated at the tips, rather more than half the length of the abdomen. 

 Hind winys blackish; veins black. Length of the body 12 lines; expan- 

 sion of the fore wings 13^ lines. 



a. Philippine Isles. From Mr. C tuning's collection. 



Genus 21. OPIPTACRIS. 



Mas. Corpus glabrum, gracile, fere cylindricum. Caput productum, 

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

 nhliqua, carinis intermediis brevissimis. Oculi globosi, valde prominuli. 

 Antennae fill formes, yraciles, corporis dimidio multo longiores. Prothorax 

 cylindricus, mavginibus rotundatis. Prosterni spina crassa, transversa, 

 subexcavata, non attenuata. Femora postica abdomine paullo longiora. 

 Ala? minima). 



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 antennae; 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 tip, 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. F'ava ; caput apud os nigrum ; antenna picece , basi flavce ; pro- 

 thorax, femora quatuor anteriora genuaque postica niyra. 



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

 aeneous. Antennae piceous, 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 ; 

 IVons subretracta, carinis quatuor bene delerminalis. Oculi elliptic!, inagni, 

 valde prominuli. Antenna? filiformes, gracillimaB, corpore breviores. Pro- 

 thorax brevis, dense punctaius, lineis quatuor transversis bene determinalis, 

 marginibus rotundatis. Prosterni spina gracilis, acuta, subcompressa. 

 Ala3 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 ; front slightly oblique, with four distinct 

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

 parallel. Eyes elliptical, large, very prominent. Antenna? filiform, very 

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



