1921] Boving: Larvae and Pupae of Social Beetles 199 



notes and figures of four larvse of Dryocora hotvitti, from New 

 Zealand; in Zool. Mus. Cambridge, England), which two genera 

 form a third unit and may constitute a subfamily, the Prostominae 

 (Plate IX, figs. 22, 24-26 and 27-33) . As a fourth unit I consider 

 the genera Prostominia (according to the excellent description 

 and figures by M. P. de Peyerimhoff of P. convexiuscula Grouv., 

 Trans. Lin. Soc. London— 2, Zool.— vol. 17, 1914, p. 156), Narthe- 

 ciiis Lee, Lathropus Erichs., Laemophloeus Laporte, Dysmerns 

 Csy., Hemipeplus Latr. and Inopeplus Smith (according to de- 

 scriptions and figures by M. P. de Peyerimhoff of P. praeustus 

 Chev.), (P. d. P. Ann. Soc. Ent. Fr., vol. 71, 1902-3, p. 715). 

 According to an imperfect description by Weisse (Deutsch. Ent. 

 Zeitsch., vol. 41, 1897, p. 393) of the larva of Phloeostichus denti- 

 collis Redtb., this genus also belongs to the present unit. All these 

 larvae are closely related to the Prostominae, but separated from 

 this subfamily by good characters; they may constitute another 

 subfamily, the Laemophloeinae and together with the Prosto- 

 minae the family Laemophloeidae. The Laemophloeidae are, as 

 the following key will show, separated from the Silvanidae and 

 Cucujidae (in restricted sense) by exactly the same main char- 

 acter by which such families as the Cryptophagidae are separated 

 from the Mycetophagidae or the Monotomidae (represented by 

 the larva of Europs) are separated from the Smicripidae (repre- 

 sented by the larva of Sniicrips palmicola Lee), namely the dif- 

 ferent shape of the maxillary mala. The genera Catogenus Westw. 

 and Scalidia Er., constituting the family Scalidiidae, difi'er to such 

 an extent from all the genera mentioned that their larvae 

 must be placed in another series of families, the Cleroidea, 

 proposed by myself in a recent paper (Adam G. Boving and 

 A. B. Champlain, Larvae of North American beetles of the family 

 Cleridae, Proc. U. S. Nat. Mus., vol. 57, pp. 588-95). They are, 

 according to Dr. F. C. Craighead (Biology of Colydiidae and 

 Bothrideridae, Proc. Ent. Soc. Wash., vol. 22, pp. 1-13, pi. L II), 

 closely connected with his new family, the Bothrideridae, and 

 appear also to be near to the family Cleridae, having like this 

 family protracted ventral mouthparts, large cardo region and 

 elongate gula region (The figs. 39-44, Plate X, are reproduced 

 from unpublished drawings by Dr. Craighead) . 



