ABT. 1 LARVAE OF AMEEICAN TENEBEIONINAE ST. GEORGE. 5 



(Figs. 56 and 67.) This form of pygidium shows a strong resem- 

 blance to that of Eleodes opaca (figs. 66 and 67) and Eleodes ca^- 

 honaria (fig. 68). 



In regards to the size of the anterior legs, as compared with that 

 of the second and third pairs, the Tenebrioninae show considerable 

 variation. In Haplandin/s, Scotohates, and Tenehrio the first pair 

 of legs are only slightly larger than the second and third pairs so 

 that all legs appear to be nearly of the same size (figs. 47 and 48) ; 

 but in Polypleurus^ Coelocnemis, Glyptotus^ Xylopinus, Ipthiimis. 

 Upis, Merinus^ Alobates^ Zophobas^ and Rhinandi^d the first pair 

 of legs are strong and robust, and the second and third pairs rather 

 suddenly decrease in size (figs. 17, 22, 34, 35). This difference is 

 greatest in Rhinandrus (figs. 58 and 59), less in the other genera, 

 increasing slightly according to the sequence in which they are men- 

 tioned. In this character Zophohas and Rhinandrus are close to the 

 Blaptinae. 



The ocelli also differ somewhat in arrangement and prominence 

 within the subfamily. They are arranged in two transverse, cres- 

 cent shaped or circular groups. In prominence they may vary from 

 being distinct to vanishing or apparently wanting. The various 

 ocelli on each side of the head may be represented in the ocellar 

 groups either by lenses, more or less fused, or only by pigmented 

 spots which may be either distinct or indistinct. In one Central 

 American species ° in the national collection, apparently closely 

 related to Coelocnemis^ five distinct ocelli are present in two trans- 

 verse groups and the lenses are separated and protruding. In TJpis 

 and Merinus the ocelli in each of the groups are without spaces be- 

 tween the lenses and less protruding. In Scotohates^ Iphthimus^ 

 Haplandrus^ Glyptotus, and Tenehrio the divisions between the 

 lenses can not readily be seen and the latter are almost fused to- 

 gether, so that each group of ocelli appears more or less as a single 

 large ocellus. This is particularly the case in Tenehrio^ where the 

 two ocellar groups appear as two single ocelli and are so described 

 by Schiodte. In Alohates^ Coelocnemis^ Rhinandrus, and Zophoho^, 

 the ophthalmic spots vary from being present to vanishing. By con- 

 sidering the ocelli as two groups, even when each is fused into what 

 appears to be a single ocellus, we can include all genera of the 

 Tenebrioninae in our characterization. In the Blaptinae the ocelli 

 are evanescent. 



The abdominal spiracles are oval and transverse in all genera of 

 both Tenebrioninae and Blaptinae. 



» Labeled : " Cacao, Trace Aguas, Alto Verapaz, Guatemala, collected April, 1906, by 

 E. A. Schwarz." 



