STEONGYLOGASTEE. 15 



deep ; behind it is rounded, but not broadly ; in front it is truncated, and angled at 

 the sides, and from each angle a ridge runs to the eyes, the space above this ridge 

 being shallow ; the eyes have a suture immediately behind them above. The meso- 

 notum in front rises rather perpendicularly over the pronotum, as it does also with 

 S. meritorius ; the suture on the middle lobe is deep ; it does not extend to the apex. 



It is a stouter insect than S. nigricornis, which has the black marks on the dorsum 

 continuous ; its wings are darker, the third cubital cellule is longer compared with the 

 second, while it wants also the black marks on the mesonotum. 



22. Strongylogaster fuscipennis. 



Eufus, capite, meaopleuris, metanoti medio, abdominis apice, tarsis tibiisque posticis nigris ; alis fuscis, costa 



stigmateque nigris. £ . 

 Long. 9 millim. 



Hdb. Mexico. 



Frontal area and furrows not very clearly defined, the former rounded and ridged 

 behind, central antennal fovea deep, lateral indistinct ; eyes oval, not reaching to base 

 of mandibles. The transverse radial nervure is received in apical third of third cubital 

 cellule, which is not much longer than broad, and much wider at apex than at base ; 

 there is a distinct horny point in the middle of second cubital cellule, which is longer 

 than the third ; the transverse median nervure is received a little beyond the middle of 

 cellule ; the accessory nervure in hind wing is very shortly appendiculated. The four 

 anterior coxae are pale, the posterior slightly darker, black at the base ; the posterior 

 knees are black ; posterior tibiae dark testaceous on underpart of basal fourth, the rest 

 black; spurs testaceous. The ventral surface is marked with transverse black bands 

 interrupted in the middle ; on the basal half above there are fuscous transverse marks ; 

 the three apical segments are entirely black. The two basal joints of antennae are 

 black ; the rest are wanting. 



May be known from S. tibialis and S. ruficollis by the shorter and much wider third 

 cubital cellule. From S. nigricornis the black mouth and pleurae and much wider 

 third cubital cellule distinguish it, as also the coxse being marked with black. 



23. Strongylogaster ruficollis. 



Niger, ore albido ; pronoto, mesonoto cum scutello, abdominis basi, tegulis pedibusque runs ; alis fuscis, stigmate 



et costa nigris. c? $ • 

 Long. 8 millim. 



Hah. Guatemala, San Geronimo {Champion), several specimens. 



Front punctured, vertex smooth, shining, frontal area indistinct; three antennal 

 foveae large, round. Eyes oval. The antennae are slightly shorter than the abdomen, 

 stout, shortly pilose; the third joint one fourth longer than the fourth; the apex 

 scarcely attenuated. Clypeus transverse. Usually the middle of the three basal 

 segments of abdomen is dull red ; but the red colour may extend over the whole of 



