Sesaspis Casey. Interestingly 1907
Creators: name: Foley, Ian A.
name: Ivie, Michael A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Zopheridae
Sesaspis

description: Key to species of Sesaspis Casey   
 1 Elytral sculpture reduced, at most a faint straight elevation of the 3 rd or 5 th elytral interval, and weak elevation at start of declivity; apex of elytra almost smooth, if weakly emarginate not swollen along suture....................................... 2   
- Elytral sculpture well developed with any combination of distinct parallel or arcuate ridges and large nodules; apex of elytra weakly to strongly emarginate, if weakly emarginate then swollen along suture......................................... 3  
 2 Elytra with faint elevation in 5 th interval; lateral margin of apical declivity smooth. Mexico, Nuevo Leon. Fig. 19... ......................................................................................................................................... S. doyeni (García-París et al.)   
 - Elytra with faint elevation in 3 rd interval; lateral margin of apical declivity weakly serrate. Mexico, Hidalgo. Fig. 18 ................................................................................................................................................. S. ashei NEW SPECIES   
 3 Elytra with two distinct almost straight parallel ridges from base to declivity, ridge in 3 rd terminating in small nodule before apical margin; apex of elytra strongly emarginate; antennomere 3 short and transverse subequal in size to 4; male nodules absent on all femora. Texas, New Mexico. Tamalipas. Fig. 27 ............................. S. emarginata (Horn)   
 - Ridge in 3 rd elytral interval weak, indistinct, or series of disconnected nodules for most of length, ridge in 5 th if present strongly arcuate; apex of elytra weakly emarginate; antennomere 3 slightly to obviously elongate, longer than 4; male nodules present on at least pro and mesofemora..................................................................................... 4   
 4 Elytral ridge in 3 rd interval reduced medially, distinct apically, extending almost to apical margin; apex of elytra only slightly emarginate; nodule at start of apical declivity weak, connected to ridge; vestiture of dense bristle-like setae. Mexico. Fig. 17 ........................................................................................................................... S. denticulata (Solier)   
 - Elytral ridge in 3 rd interval reduced to almost absent, or consisting of series of rounded nodules; 3 rd interval terminating in large round or arcuate nodule at start of apical declivity; vestiture tomentose................................................. 5   
 5 Ridge in 3 rd elytral interval formed by disconnected round nodules; elytral suture at apex not swollen; nodules at start of declivity strongly rounded or conical; subgenal ridge strongly thickened with enclosed median depression or pit. Mexico, Chiapas and Central America. Fig. 26 ....................................................... S. triplehorni NEW SPECIES   
 - Ridge in 3 rd elytral interval indistinct, elytra flattened dorsally; elytral suture strongly to weakly swollen; nodules at start of declivity arcuate; subgenal ridge well developed but with distinct posterior bend......................................... 6   
 6 Apical margin of elytra bifid with two distinct nodules, suture weakly swollen; posterior angles of pronotum obtuse and rounded; dorsal surface of head with apical margin of frons flat, margin of suprantennal ridge slightly emarginate, channels at base of suprantennal ridge straight. Mexico, Oaxaca. Fig. 28............................................................. ...................................................................................................................................................... S. lutosa (Champion)   
 - Apex of elytra with single nodule, suture strongly swollen with short ridge; posterior angles of pronotum expanded, sharpened to approximately 90° angle; dorsal surface of head with apical margin of frons concave, margin of suprantennal ridge rounded, channels at base of suprantennal ridge arcuate. Mexico. Fig. 29 .. S. sylvatica (García-París et al.)
description: Published as part of Foley, Ian A. & Ivie, Michael A., 2008, A phylogenetic analysis of the tribe Zopherini with a review of the species and generic classification (Coleoptera: Zopheridae), pp. 1-72 in Zootaxa 1928 (1) on page 32, DOI: 10.11646/zootaxa.1928.1.1, http://zenodo.org/record/5230727