Moved from Unidentified larvae.

Smith (1922) gives a key to larvae of eastern species (minus C. incompleta). The facial markings are quite different from those reported by Flint et al. (1998). C. oculata, C. nigricornis, and C. chi are all noted as having 3 distinct spots. There also seem to be some factual errors as C. oculata is certainly a common species. According to Smith, C. nigricornis would have all of the abdominal tubercles distinctly darkened, not pale with only some red above. In keying both species, C. oculata has no lateral tubercles on the first abdominal segment, while C. nigricornis has small tubercles. I'm not seeing evidence of tubercles or setae here. Additionally, the area adjacent to the third thoracic tubercle is dark in Smith's sketch of C. nigricornis, which isn't the case here. Instead, the area adjacent fourth tubercle is dark, which also agrees more with Smith's description and sketches of C. oculata. Of the species in the key, this comes out rather cleanly as C. oculata.

Moved from Unidentified Naked Larvae.