630 LATHRIDIIDA. 
found to connect the Cholovocerous series of Lathridiide with the Discolomine *, and 
this will probably involve the removal of the Merophysiine to the family Colydiide, 
where, in my opinion, they would be best placed. 
The late Mr. Matthews proposed a new family, Pseudocorylophide, for Aphano- 
cephalus, which, as I have already said, is doubtless closely allied to Fallia. But this 
family must disappear, Horn having long previously proposed the family Discolomide 
for some allied forms. According to my own views, all these species are aberrant 
Colydiide ; but whether this view be adopted or not, the name Pseudocorylophide is 
clearly superfluous. 
I have named this interesting genus in recognition of the value of Mr. H. C. Fall’s 
recent work on the North-American Lathridiide. 
1. Fallia synthetica, sp.n. (Tab. XIX. fig. 3.) 
Breviter elliptica, nigra, nitida, antennis piceis, pedibus sordide rufis, fere impunctata; elytrorum margine 
laterali argute elevato, vix subexplanato; epipleuris latis, horizontalibus, minutissime punctatis et 
setosulis. 
Long. corp. 14, lat. 1 millim. 
Hab. Panama, Caldera in Chiriqui (Champion). 
Thorax and elytra of nearly unbroken outline, with acutely elevated margin. 
Scutellum large, triangular. Upper surface almost impunctate. ‘There are no 
impressions on the thorax, and no sutural stria on the elytra. ‘The under surface is 
without sculpture, except for the minute punctuation of the broad epipleura, which is 
continued along the flanks of the prothorax. The legs are quite short, the femora 
broad but flat. Four specimens, all in bad condition. 
2. Fallia minoy, sp. n. 
Elliptica, nigra, nitida, antennis piceis, pedibus sordide rufis, fere impunctata; elvtrorum margine laterali 
subtili ; epipleuris horizontalibus, sat latis. 
Long. 13 millim. 
Hab. British Honptras, Rio Hondo (Blancaneaux); GuatemMaALA, Pantaleon 
(Champion). 
Closely allied to F. synthetica, but smaller and narrower, and with the lateral 
margins of the elytra, and the epipleura, less broad. We have received nine specimens 
of this minute insect. One of those from Honduras, however, probably belongs to a 
different species, as it is of more rotund form, and has a distinct, though extremely fine, 
punctuation on the upper surface. 
* The specimens have only recently been placed in my hands. Had I been able to study them in connection 
with the Discolomine, I believe I should have placed the genus in that group, although the inadequate material 
does not permit me to decide with certainty that these insects possess the curious structure of the metasternum 
characteristic of the Discolomine. 
