191 S] AlydincE of the United States 2G5 



Burtinus Stal. 



Haplotypc notatipennis Stal. 



Burtinus Stal (1859a) 458, (1873) 90. 

 Alydus Stal (1867) 542, (187Q) 214; in part. 



Although closely related to the preceding genus which is 

 typically boreal, the species of Burtinus are tropical in dis- 

 tribution and only one has been found in our fauna. The 

 generic characters are sufficiently described in the synopsis. 



10. Burtinus notatipennis Stal. 



Burtinus notatipennis Stal (18o9a) 459', (]S()2) IWr, Barbrr (1910) 5-, Van Duzce 



(1917)*. 

 Alvdus notatipennis Stal (1S7U) 214; Walker (1871) KiO; Distant (1893) 373'; Barber 



(1914)^ 

 Alydus {Me^alotomns) fcnioralis Distant (1881) 158". 

 Afydus (Burtinus) femoralis Distant (1893) 373". 

 Burtinus femoralis Uhler (1894)**. 



Description. — Color ^'aryit■l.s; from ]3alc flavcscent to dusky ochraceous 

 mottled and punctured with l^rown, more or less marked with black 

 on head and \-eiiter. Antenna?, rostrum, and Icj^s similar to those of 

 M. o-spinosus, but posterior femora with apical half usually marked 

 with fuscous, sometimes flavo-annulate, not rufescent, not attaining 

 apex of aljdomcn, and usually with an obsolete little tooth near base; 

 tibiae anncd at the apex with a small spine. 



Male with lateral and mesal margins of claspcrs subparallel to near 

 the obliqucl}' truncate tip. Female with mesal plates of hypopygium 

 armed near base with a blunt lateral tooth, which engages a notch in 

 the niesal margin of the convergent lateral plates. 



Described from Central America^"^"*^"", Mexico^"", and South 

 America^ and collected since in Lower California^ Arizona'-, 

 Florida'' and Texas'*. The relationship with Distant's species 

 was proposed by Uhler^ and this position has been supported by 

 Barber^ B. femoralis should possibly, however, be listed as a 

 variety for it is larger and paler than the form which Stal 

 described. No other differences have been found. The spec- 

 imens at hand are from Arizona (kindly loaned by Mr. Barber) 

 and Linares and Cuernavaca, Mexico, from the Ball collection. 



Alydus Fabricius. 

 Orthotype calcaratus Linnaeus. 



Alxdus Fabricius (1803) 248; Stal (1859a) 458, (1867) 542, (1870) 213. (1872) 54, 

 (1S73) 90; Fit'ber (1861) 58, 225; Distant (1881) 157; Provancher (1885) 55; 

 Montandon (1893); Barber (1911).* 



Alyde Latreillc (1825) 421. 



The type genus of the Alydina^ is one of nearctic origin 

 with two palearctic and seven nearctic species. It is a com- 

 pact group of closely similar forms united by the possession of 



* A more conijjlete list of early references is given by Van Duzec (1917). Only 

 those works on whicli the modern conception of the genus is based are named above, 

 all except two of those I)efore 1860 being omitted. 



