BELONUCHUS. 433. 
sculpture, more closely and finely punctate on the upper surface, especially on the base 
of each segment, and beneath much more finely punctate. The male has only an 
excessively slight emargination of the last ventral plate. The absence of punctuation 
on a narrow space along the middle of each of the two terminal segments is more 
conspicuous in this species than in B. erythropterus, and it is probable that Solsky’s 
general description of B. erythropterus was taken from that species, but the male 
characters from an example of B. simplex. 
I have seen only four examples of B. simples. 
11. Belonuchus ephippiatus. 
Staphylinus ephippiatus, Say, Trans. Am. Phil. Soe. iv. p. 448°. 
Belonuchus ephippiatus, Lec. in Say’s Insects of North America, ii. p. 563°. 
Hab. Norta America, San Diego ? (Leconte), Arizona (Horn).—Mexico 1. 
I have no evidence that the species sent me by Dr. Horn is really found in our 
region, and it is quite uncertain whether it is really the S. ephippiatus, Say; the 
responsibility of the identification rests, therefore, with the North-American savants. 
Say’s description is very vague, but I think it more probable that Sallé’s identification 
of it with B. erythropterus, Solsky, is correct. 
The Arizonan insect is excessively close to B. simplex, but has a densely punctate 
hind body, and more closely punctured and less shining wing-cases. 
12. Belonuchus connexus. 
Staphylinus connexus, Say, Trans. Am. Phil. Soe. iv. p. 448°. 
Belonuchus connexus, Munich Cat. Col. 1. p. 596%. 
Hab. Mexico 1. 
This species cannot be identified from description with any certainty; it might be 
either a variety of B. erythropterus, B. simplex, B. ephippiatus, Philonthus xanthopus, 
or P. celatus. 
13. Belonuchus dejectus. (Tab. XI. fig. 12.) 
Depressus, niger, nitidus; elytris viridescentibus vel cyaneo-nigris; prothorace posterius fortiter angustato, 
seriebus discoidalibus subtiliter 5-punctatis ; abdomine segmentis 2°-4™ basi transversim depresso et rugulose= 
punctato. 
Mas, Trochanteribus posterioribus plus minusve prolongatis. 
Long. 7-8 millim. 
Hab. Mexico (Trugqui, Flohr), Cordova (Sallé), Jalapa, Las Vigas, Mirador (Hége); 
GuaremaLa, Capetillo, Cerro Zunil, Balheu, Tamahu, San Joaquin, Purula, El Tum- 
bador, San Gerénimo (Champion); Panama, Volcan de Chiriqui 2500 to 4000 feet 
(Champion). 
Head large, broader than the thorax, very intense black and shining, with an irregular 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, March 1885. 3 KK 
