370 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 45. 



EUGNAMPTUS ANGUSTATUS TESTACEUS, new variety. 



Head and thorax strongly punctate; color uniformly rufotesta- 

 ceous. Length 4.2 mm. 



Described from a single male from Kerrville, Texas, April 22, 1908 

 (F. C. Pratt). 



Type.— Cat. No. 24627, U.S.Nat.Mus. 



EUGNAMPTUS PALLIDUS Schaeffer. 



A specimen from Texas (Belfrage) seems to fit the description of 

 this species. 



Genus RHYNCHITES Schneider (1791). 



Rhynchites Schneider, Neuestes Mag. fiir Liebhaber der Ent., vol. 1, 1791. 

 Rynchites Herbst, Die Kafer, vol. 7, 1797, p. 134. 

 Rhyndtes Latreille, Cons, gen., 1810. 



The type of this genus is hacchus Linnaeus, as designated by 

 Latreille (1810). 



Genus MERHYNCHITES Sharp (1889). 



Merhynchites Sharp, Trans. Ent. Soc. Lond., 1889, p. 57. 



Sharp separated the two nonmetallic species, hungaricus Herbst 

 and hicolor Fabricius from Rhynchites because of differences in the 

 centro-stemal piece. Whether this character is of valid generic rank 

 has not been carefully studied out, although it is undoubtedly of 

 considerable value and merits further research. In the absence of 

 type designation we may consider hicolor as type. 



MERHYNCmXES BICOLOR Fabricius. 



The large series of this species is readily separable into varieties or 

 races. 



Table of varieties of Merhynchites hicolor Fabricius. 



1. Elytra red, body with greenish luster. 



c^ Red throughout, except on the venter of the mesothorax, metathorax, and abdo- 

 men, which are black; California to North Dakota. . var. cockerelli, new variety 



a^. Elytra, prothorax and head red; ventral parts reddish piceous; beak, antennae 

 and legs piceous black; South Dakota var. ventralis, new variety. 



a'. Elytra, prothorax and base of head to eyes red; remainder of body black; New 

 Hampshire to Iowa; Utah and New Mexico var. bicolor Fabricius. 



a*. Elytra and prothorax only, red; remainder of body black; British Columbia to 

 New Mexico and North Dakota var. wickhami Cockerell. 



2. Elytra piceous or black; body with greenish luster. 



6^ Elytra piceous black; remainder of body black; strial punctures indistinct; 



Oregon var. piceus, new variety. 



b^. Body unicolorous, black with a bluish-green luster; elytra with a slight piceous 



undertone; strial punctures very distinct; Arizona. 



var. viridilustrans, new variety. 



