26 J. L. LECONTE, M. D. 



Among tlie .species cited by ]Mr. Bourgeois under tliis genus (Comptes- 

 rendus Soc. Ent. Belg. 1879, xix), is Li/c.us sanguinipennis Say. What 

 is signified by that name is not Say's species, which will be found above 

 under Rhyncheros. but a beautiful scarlet species of the present genus 

 found in ^lexicf). It was collected by Mr. Salle, to whom I am indebted 

 for a specimen, and has been described (Dec. 1880), in Biologia Cent. 

 Am. Lycida?. p. 21. tab. 2, f. 1(3, as P. lateritius ; the reference to 

 Bourgeois' mention of this insect is omitted. 



The species in this genus are almost luidistinguishaljle. I have found 

 no characters for separating them except the form of the antennte, 

 especially in the % . 



Antennre brnail. very stronglv couipressed. tliird joint as wide as long, not as large 

 as the foilrtli; 4 — 10 gradually longer and narrower, the lower ones as wide 

 as long, file ninth aliont twice as long as wide, anterior ttngle somewhat 

 acute , 2. 



Antenn;e less l)road, more distinctly serrate, the joints heing naii'owei' at base and 

 triangular rather tlian trajDezoidal, second joint more rounded, third tri- 

 angular, as wide as the fourth but not as long, 4 — 10 gradually narrower, 

 but scarcely increasing in length, fifth about twice as long a.s wide 3. 



2. — Black, prothorax fulvous, with a lai-ge discoidal blackish spot very feebly 

 earinate at tip, dorsal cellule wide, posterior or basal outline well defined, 

 lateral outlines almost oblitei-ated ; elytra with the alternate interstitial lines 

 distinctly elevated, the others rather irregular and indistinct with coarser 

 cells than in modestus ; % seventh dorsal more deeply and widely emar- 

 ginate than in that species, eighth larger and wider than usual. Length 



.">— 7..") mm. Va.; Ga. ; Fla tiini<lus Lee. 



a. — Prothorax black with the sides fulvous: Fla. 



/i. — Prothorax black with very iiai'row fulvous side margin : Fla. 



•"i. — Black, prothorax witli sides and nai'row apical and liasal margin fulvous, not 

 earinate at apex, basal cellule short, ))a.sal and lateral margin elevated; 

 elytra with alternate interstitial lines more elevated, intermediate ones very 

 indistinct; antennffi of % with joints triangular, third one-half as long as 

 fourth, but not wider; fifth twice as long as witle, outer ones gradually 

 narrower, the angle not acute, and the distal sides of the joints are therefore 

 not oblique; of 9 similar to those of % but somewhat broader; seventh 

 ventral % l)roadly emarginate, eighth elongate, of usual foiiu. Length 



0.5 — 7. .J ]iim. L. SuiJ.; Pa.,., modestllS Say. 



Black, jjrothorax with sides and frequently apical and basal margin, also the 

 humeri fulvous ; apex not earinate, basal cellule a narrow channel extend- 

 ing nearly to the middle ; elytra with interstitial lines equal, or nearlj' so ; 

 autennse rather strongly serrate as above described, except that the angle is 

 distinctly acute and the distal edge oblique. Length 5 — 8 mm. L. Sup. ; 

 Pa.; Fla. Varies greatly both in size and foriii, as does also the preceding 

 species, so that the synonyms are quite numerous. ..caiialiculatllS Say. 

 «. — As above, alternate interspaces more elevated, 

 .tf. — Humeri and anterior part of suture fulvous. 

 y. — Entirelv black. 



