34 EKOTYLIDiE. 



1. Megalodacne quadriguttata. (Tab. II. fig. l.) 



Erotylus 4<-guttatus, Oliv. Enc. Meth. vi. p. 434 (1791) \ 

 Triplax ^-guttata, Oliv. Ent. v. p. 489, t. 1. f. 2. 

 Episcapha heros, Guerin, Rev. Zool. 1841, p. 159 2 . 

 Engis signata, Casteln. Hist. Nat. Col. ii. p. 15 3 . 

 Episcapha quadrisignata, Dej. Cat. 3rd ed. p. 137*. 

 Dacne quadriguttata, Lac. Monogr. Erotyl. p. 70 5 . 

 Dacne multifida, Lac. Monogr. Erotyl. p. 72, var. 6 

 Dacne brasiliensis, Lac. Monogr. Erotyl. p. 72, var. 7 

 Megalodacne quadriguttata, Crotch, Cist. Ent. i. pp. 141, 417 8 . 



Hal. Nicaragua, Chontales (Belt, Janson 8 ). — Guiana, Cayenne 1345 ; Bolivia 2 ; 

 Beazil 6 7 . 



Olivier's figures of the Erotylidse, including the present species, are very rude, and do 

 not give much idea of the insect. 



2. Megalodacne audouini. (Tab. II. fig. 2.) 



Dacne Audouini, Lac. Monogr. Erotyl. p. 66 \ 



Hal. Mexico 1 , Presidio (Forrer), Cordova (Hoge), Toxpam, Paso del Macho (Salle). 



Distinguished from M. fasciata, which it very closely resembles, by its rather more 

 elongate and parallel form, by the distinctly punctured stria? of the elytra, by the 

 humeral black spot not being surrounded by red, and (according to Lacordaire) by the 

 apical joint of the labial and maxillary palpi being dilated and securiform. Hoge 

 brought a fine series of specimens from Cordova. The single example from Presidio is 

 more narrowed in front and behind than usual, but is not, I believe, specifically distinct. 



3. Megalodacne fasciata. 



Ips fasciata, Fabr. Gen. Ins. p. 213 (1777) 1 ; Ent. Syst. ii. p. 511. 



Dacne fasciata, Lac. Monogr. Erotyl. p. 65 2 . 



Megalodacne fasciata, Crotch, Trans. Am. Ent. Soc. 1873, p. 353 3 . 



Erotylus bifasciatus, Oliv. Enc. Meth. vi. p. 433 (1791) 4 ; Cand. Mem. Liege, xvi. p. 393, t. 6. f. 6. 



Bab. Nokth Ameeica 1 2 , Middle and Southern States 3 . — Mexico 4 , Cordova (Hoge). 



Common in the Middle and Southern United States, apparently much less so further 

 south. There is only one specimen in the collection sent by Hoge. 



4. Megalodacne tortuosa. 



Dacne tortuosa, Lac. Monogr. Erotyl. p. 69 l . 



Hal. Mexico, Eastern States K — South America, Colombia 2 . 



Not in any of the collections received by us. The few specimens I have seen have 

 been labelled Colombia. 



