1 8 W. Dwight Pierce 



veloped eggs. The same remark concerning these females is ap- 

 plicable as the one applied to the female of Xenos p'ulvinipes. 



HYPERMETAMORPHIC TRIUNGULOIDS 



Following is a table of the triunguloids or first larvae of these 

 parasitic beetles, drawn from specimens at hand and published 

 descriptions : x 



1. Typical triungulins, i. e., with three claws 2 



Triunguloids, not having three claws, but possessing a 



pulvillus or sucker 8 



2. Abdomen provided with caudal setae 3 



Abdomen provided with caudal spinning apparatus or 



sucker 7 



3. Thoracic joints unequal 4 



Thoracic joints subequal 6 



4. Mandibles and maxillae powerful ; femora slender ; tibiae 



well armed; tarsal claws slender, spine-like 5 



5. Mandible toothed; antennae short, last joint bilobed . Epicauta 

 (Macrobasis, Mylabris, Henous also belong here.) 



6. Antennae long; mandibles toothless; femora slender; 



(resembles Epicauta) Cantharis 



Antennae four-jointed with apical bristle; mandibles 

 acute, sinuate, not toothed ; femora stout, legs spine- 

 less Meloe 



(Apalus belongs near Meloe.) 



7. Femora stout ; legs spineless ; tarsal claws strong, ar- 



ticulating ; mandibles toothed ; antennae three- 

 jointed with a long apical bristle Sitaris 



8. Tibiae tipped with sucker or pulvillus, and claws 9 



Tibiae tipped with a pad or pulvillus, only 10 



9. Tibiae ending in two or three claws supported by a large 



transparent pulvillus or sucker of twice their 

 length ; each abdominal segment with short lateral 

 spine pointing backwards ; last segment terminated 

 by a large double sucker similar to those of the 

 legs " Rhipiphorus paradoxus 



*See pi. I, figs. 3, 13, 14, 15; pi. II, figs. 1, 2, 3. 



170 





