134 



ee. Wings adjacent on the meson but not touching; maxillae 

 usually as long as the wings ; cephalic end of body without 

 heavily chitinized spinous projections. 



Heterocampa Doubleday. 

 The following species were examined : 

 Melalophinae 



Melalopha inclusa Hiibner, apicalis Walker, albosigma Fitch 

 Apatelodinae 



Apatclodcs torrefacta Smith and Abbot, angelica Grote 

 Cerurinae 



Harpyia horcalis Boisduval 

 Pygaerinae 



Datana niiiiistm Drury, modesta Beutenmiiller, angiisii Grote and 

 Robinson, chiriquensis Dyar, contracta Walker, drexclii Hy. 

 Edwards, intcgcrrima Grote and Robinson, major Grote and 

 Robinson, paluiii Beutenmiiller, rohusta Strecker 

 Notodontinae 



Synnncrista alhifrons Smith and Abbot 

 Heterocampinae 



Hyparpax aurora Smith and Abbot 



Schizura ipomoeae Doubleday, concinna Smith and Abbot, 



unicornis Smith and Abbot 

 Heterocampa giittivitta Walker, bUiucata Packard 



Family Dioptidae 



The pupae of this family closely resemble those of the Geomet- 

 ridae, but are more specialized than most of the genera in that fam- 

 ily, although they show the epicranial suture (Fig. 115). The ap- 

 pendages are arranged very much as in the Geometridae, but there is 

 no trace of labial palpi, maxillary palpi, or prothoracic femora (Fig. 

 114). The antennae are filiform, extending beyond the caudal mar- 

 gin of the wings and about half way down on to the fifth abdominal 

 segment. Each prothoracic leg extends cephalad between the sculp- 

 tured eye-piece and the antenna. The distal ends of the prothoracic 

 and mesothoracic legs and the maxillae are overlaid by the antennae, 

 which lie adjacent on the meson at their distal ends. The abdomen is 

 elevated at the dorso-meson to form a low ridge, and there are promi- 

 nent hooked setae present on segments seven to ten as well as on the cre- 

 -master. This family contains a single American species, Phryganidia 

 calif arnica Packard. The family has usually been placed between the 

 Noctuidae and Notodontidae, and widely separated from the Geomet- 

 ridae. The pupa shows no relationship to the noctuids, and is much 

 more highly specialized than most members of that family. 



