41f) FAMILY XT. STAIMIYI.IMD.i:. 



<1<1. Prosternnin prolonged behind so as to reach the mesosternum. 

 (l. Sides of prostermim not dilated under the coxje. 



/;. Xeek never very slender: ligula loosely fringed at tip. 

 /. Labrum with teeth. 

 j. Teeth of la 1 mini two in number. 



/,-. Anteinue with the two basal joints thick, the others 

 slender, filiform; basal joints of hind tarsi distinctly 

 longer than second; length less than .">.."> mm. 

 /. Gnlar sutures moderately separated, gradually con- 

 verging and most narrowly separated at base; front 

 tarsi more or less dilated; surface distinctly punc- 

 tured. XLVII. SCIOCIIAKIS. 

 U. Gnlar sutures very widely separated and nearest to- 

 gether in front, thence widely diverging to base of 

 head; front tarsi not at all dilated; surface m>t dis- 

 tinctly punctured. XLVIII. SCIOCIIARELLA. 

 /,7,-. Antenna' with the basal joints of equal thickness with 

 the others, the apical ones feebly enlarged; teeth of 

 labrum very small; prosternum not carinate. 

 in. Basal joints of hind tarsi equal in length to second, 

 the first four joints short and suhequal ; gul;ir su- 

 tures most narrowly separated a little before the 

 middle. XLIX. TKAC IIYSKCTI s. 

 //////. I la sal joints of hind tarsi distinctly longer than sec- 

 ond, the tarsi more elongate; front tarsi strongly 

 dilated, especially in the male; gular sutures most 

 narrowly separated at base; neck wide, almost half 

 as wide as head. L. PAHAMEDON. 

 ././. Labrum with four teeth, the inner ones long, acute, and 

 prominent, the outer ones very small: gular sutures 

 widely separated at base. PLATYMEDON. 

 //. Lahruin without teeth; body very slender, finely and very 

 densely punctate: gular sutures as in I'lfitinnrtlun : first 

 joint of hind tarsi longer than second. 



LI. PsF.rnoMEDOX. 



lili. Neck in our species very slender: ligula tricuspid at tip; 



labrum with four teeth. LII. SCOP.EUS. 



(lit. Sides of prosternum broadly dilated under the coxa-, reaching 



the inflexed sides of thorax; neck very slender. 

 a. Antenna? distinctly longer than head; length :>..j or more mm.: 

 hind tarsi with joints 1 to 4 gradually decreasing in length. 

 <>. Form rather slender: labrum broadly rounded or subtrun- 

 cate at apex, the teeth usually acute: front tarsi finely 

 and densely pubescent beneath. LIII. STILKTS. 



<><>. Form very stout : labrum sinnate-emarginate at apex, the 

 two teeth short, obtuse: front tarsi not at all dilated, hav- 

 ing long coarse hairs beneath; head orbicular, the surface 

 minutely punctate or alutaceoiis. LIV. MEGASTILICUS. 



