44 Mr. M. Burr — Notes on the Forficularia. 



somewhat tumid, the sides broadly flattened, this flat part 

 especially broad posteriorly ; lateral margins themselves 

 reflexed, well produced over the elytra. Elytra perfectly 

 developed and long, or, more frequently, abbreviated, and 

 square; posterior margin truncate, external sharp and well 

 defined, extending the whole length of the elytra. 



Wings generally abortive ; occasionally perfectly deve- 

 loped. 



Femora, esi)ecially the anterior pair, strongly incrassate : 

 tibiae rather short ; tarsi long and slender, almost as long as 

 the tibiee, first segment longer than the second and third 

 united, the second small and cylindrical. 



Abdomen depressed, parallel or somewhat dilated about the 

 middle ; lateral tubercles on segments 2 and 3 present ; last 

 dorsal segment S rectangular, broad, posterior margin 

 depressed and thickened ; ? somewhat narrowed ; penulti- 

 mate ventral segment ^ ? nearly quadrangular, posterior 

 margin broadly rounded, ample, completely covering the last 

 segment. 



Pygidium ^ very prominent and long, or rather short but 

 distinct ; ? minute. 



Forceps $ generally long and slender, gently sinuate, 

 rather thicker than the base, generally armed with teeth; in 

 the $ short, thick, generally toothed. 



This genus is well characterized by the smooth almost oily 

 lustre, by the sharp keel of the elytra, and the thick femora. 

 The form of the pygidium and forceps is very characteristic 

 in each species. 



Table of Species. 



1. Pj^gidium S taud valde prominens. 



2. iorcipis braccbia S valde elougata, de- 



pressa, paullo vel baud dilatata ; (elytra 



brunuea, baud maculata ; alae abortivaB). 



3. Femora annulata; forcipis braccbia S 



margine interne baud laminata. 



4, Caput fuscum; statura mediocri (long. 



corp. 7 mm., fore. 6 mm.) ; forceps 



unidentatus 1. dolichus (Burr). 



4.4. Caput rufum ; statura parva (long, 

 corp. 4-7o mm., fore. I'o mm.) ; 



forceps unidentatus 2. ivallacei, sp. n. 



3.3, Femora unicoloria ; forcipis braccbia S 



margine interno prope basin laminata. 3. ^m^js (Borm.). 

 2.2. Forcipis braccbia c? minus elongata, 



gracilia, arcuata, baud depressa 4. 2^i(lchripes (Borm.). 



1,1. Pygidium cJ valde prominens ; (elytra 

 brevia vel perfecte explicata). 



