440 SYNTELIIDA. 
four dorsal plates are equal in length, are corneous, and each is coarsely sculptured at 
the base; the following two plates have a silky and slightly pubescent surface; the 
apical plate is very large. There are, in the male, two or three small internal segments 
in addition to the cedeagus. 
The species of Syntelia probably prey on larve of timber-feeding or other insects. 
Lewis met with S. histeroides on the trunks of small oaks in the wood of which larvee 
of one of the Hepialide were feeding. 
1. Syntelia westwoodi. (Tab. XIV. figg.1; 1a, labium and outer face of the 
maxille ; 1 0, inner face of the labium.) 
Syntelia westwoodi, Sallé, Rev. et Mag. Zool. 1878, p. 18, t. 9. fig. 3 ‘ 
Hab. Muxico, Tehuacan (Hége), Rancho de la Parada in Oaxaca 8000 feet }. 
This species differs considerably in appearance from its congeners, and somewhat 
resembles Necrophorus. I can detect no sexual distinctions in the nine examples that 
I have before me of the species. 
2. Syntelia mexicana. (Tab. XIV. fig. 2.) 
Syntelia mexicana, Westw. Proc. Ent. Soc. Lond. 1864, p. 11°; Sallé, Rev. et Mag. Zool. 1878, 
p. 12, t. 9. fig. 2”. 
Hab. Muxico (Mus. Mniszech +), Orizaba (Saillé ?). 
S. mexicana very closely resembles S. indica and S. histeroides from the Eastern 
hemisphere. Only two examples exist in collections, so far as I know; they were 
found by M. Sallé at Jacale, on the slope of the Peak of Orizaba, under an enormous 
fallen pine near the snow. Westwood’s description was taken from one of these 
specimens, then in the collection of the late Count Mniszech; the other is now before 
me, having been obtained by our Editors with M. Sallé’s collection. 
Judging from the brief notes that have been published about S. mexicana and 
S. histeroides, and from the general resemblance between the two species, it appears 
probable that S. mexicana passes its earlier stages in or under the bark of trees 
attacked by wood-feeding insects, on whose larvee it preys, and that in the perfect state 
it frequents trees from which sap is oozing, flying from tree to tree; the Syntelie 
being provided with very powerful wings. 
