STRONGYLIUM. 343 
Var. The elytra with the outer two spots of the first band confluent, and the three spots of the second band 
united into one large spot. 
Length 10-15 millim.; breadth 5-6 millim. (¢ 9 ) 
Hab. Nicaracua (Sallé), Chontales (Belt, Janson); Costa Rica (Sallé); Panama, 
Bugaba, Volcan de Chiriqui 3000 feet (Champion). 
Many examples. All the Nicaraguan examples belong to the variety, but in Chiriqui 
both forms were collected together. A very distinct species, resembling in its general 
facies and elytral maculation certain forms of Pecilesthus; in the structure of the 
thorax this insect is almost intermediate between that genus and Strongylium. The 
legs scarcely vary in colour. 
A typical example from Chiriqui is figured. 
** Prothorax with the sides immarginate. 
2. Strongylium hopfneri. (Tab. XIV. figg. 17, ¢; 18, 3, var. pectorale.) 
Strongylium hepfneri, Makl. Monogr. p. 124; Act. Soc. Fenn. viii. part 1, p. 2327. 
Pecilesthus hépfneri, De}. Cat. 3rd edit. p. 229%. 
Pecilesthus rufipennis, De}. Cat. 1. c.’. 
Var. a. Head and thorax rufo-testaceous, the legs black; the fourth and fifth ventral segments red. 
Strongylium scutellare, Makl. Monogr. p. 125; Act. Soc. Fenn. viii. part 1, p. 233 *. 
Var. G. Head and prothorax rufo-testaceous, the basal three fourths of the femora red; beneath in greater 
part red. 
Strongylium pectorale, Mikl. Monogr. p. 125; Act. Soc. Fenn. vii. part 1, p. 233”. 
Strongylium lucidum, Deyr. in litt. 
Var. y. Upper surface fusco-piceous ; beneath (except the fifth ventral segment) and the legs black. 
Strongylium immundum, Makl. Monogr. p. 126; Act. Soc. Fenn. viii. part 1, p. 234°. 
Var. 5. Above and beneath coloured as in the type (black, the elytra and the fourth and fifth ventral segments 
red), the elytral interstices almost impunctate. 
Strongylium chevrolatii, Makl. Monogr. p. 127; Act, Soc. Fenn. vii. part 1, p. 2357. 
Pecilesthus chevrolatii, De}. Cat. 3rd edit. p. 229°. 
Hab. Mexico 12245678, Cordova, San Andres Tuxtla, Playa Vicente (Saillé), 
Misantla, Mirador (Hoge); GuaremMaLa, Senahu, Teleman, Panima, Sinanja, Chacoj, 
and San Juan in Vera Paz (Champion). 
I can detect nothing of importance in Maklin’s descriptions, which were no doubt 
based upon very insufficient material, of these five so-called species, beyond colour 
and some slight difference in the punctuation of the elytral interstices. The very 
large amount of material before me connects the numerous varieties, most of which 
occur together in the same localities, not only in Mexico but in Guatemala also. The 
head, thorax, antenne, legs, and under surface vary very much in colour; but the 
elytra are usually red, and the scutellum is always piceous or black. The var. y, 
