54 STUDIES IN NORTH AMERICAN MEMBRACID.E 



and the next are smaller and have the apex of the pronotum 

 distinctly shorter and more obtuse than we find in the related 

 eastern calva and illiiioicusis. 



5. Micrutalis binotata Goding. 



Here the pectus in part, the base of the head, and the pro- 

 notum are black; the latter has a basal' transverse vitta, two 

 oblique oval spots above them, sometimes much reduced, the 

 humeri and apex, and in some examples the lateral margins 

 and connecting lateral spot behind the middle, pale. I have 

 seen but two typical examples of this, both females taken near 

 Los Angeles, California, by Mr. D. W. Coquillett. The Cor- 

 nell University collection has one smaller specimen which wants 

 the pale lateral margins and spots but it is a male and is per- 

 haps typical for that sex. This may be bat a color variety of 

 occidentalis, 



6. Micrutalis parva Goding. 



Thus far known from Arizona. This has the head 

 and upper surface black, with a broad transverse band across 

 the middle of the face and the tip of the pronotum pale. Its 

 small size and depressed form will distinguish it. 



Tribe Telamonini Goding. 



Pronotum unarmed, 1. 



Pronotum armed with a horn or dorsal crest, more or less de- 

 veloped, 2. 



1. Dorsum rounded, not at all compressed, 



1, Carynota Fitch. 

 Dorsum strongly compressed, foliaceous, 



7, Archasia Stal. 



2. Pronotum armed anteriorly with a porrect horn, terete or 



nearly so, 2, TJielia A. & S. 



Pronotum armed with a laterally compressed horn which 



is erect or nearly so, or with a dorsal crest more or less 



elevated, 3. 



3. Dorsal crest arising from between the humeri, in the form 



of a compressed linear horn, erect or slightly inclined 

 forward, 3, Glossonotus Butler. 



