190 NEW YORK STATE MUSEUM 



(Id Not as aboA^e 



Dorsum of each median abdominal segment marlied with spines 

 of several sizes; those in a transverse row near the anterior 

 and the posterior margins are most prominent 



?,2. nigricans n. sp. 

 ee The spines most eonspicnous in two oblong patches bej-ond the 

 middle of each segment 

 / The teeth of the comb of tlie eiglith segment projects caudad, 



pl.22. figs. 15 and 10 43a. Var. a of m o d e s t u s 



ff Teeth of the comb of the eighth segment project laterad. 

 Markings on the abdomen resembles pl.22, fig.15, but covers 

 more area on the anterior segments 48. dux n. sp. 



Weyeiibergli (1874) gives a few notes on the larvae of several 



species, among others, C . n n b e c n 1 o s n s . d i v e r s u s . 



r i p a r i ii s, annularis, c li 1 o r i s , \- i r e s c e n s, and 



tentans. Of ten tans only is a description given. Doctor 



Dvar (1!)02) gives descriptions of larva and pnpa of C. an ou y- 



mus Will. (No. 55). This description is in part reproduced ou 



a subsequent page. 



Intagbics 



Most of Say's and Wiedemann's species have been recognized and have 

 been placed in the following key. Of Walker's species only one or two 

 have been recognized and for this reason a separate key is given upon a 

 subsequent page for them : 

 a Wings with spots or cross bands 



ft Dorsum of thorax polished black (humeri may be yellow) 



c Humeral region of thorax tinged with yellow, wing with only a faint 



cloud 1. b r a c h i a 1 i s 



cc Thorax entirely black (var. of above?) 2. a t r i m a n u s 



6b Dorsum of thorax not polished black 

 G Wings with spots 



(I Each wing with about eleven spots ; brownish or gi'eyish species ; 



3 nun. in length (New Mexico) 3. varipennis 



d(] Wings not so marlced 



(• Thorax pale yellow, wing with fom* spots : length 1.2 mm. 



Cuban species 4. o c t o p u n c t a t u s 



ec Thorax brownish 



f Wing with three dark spots: thorax indistinctly striped; abdo- 

 men dusky ; length 2 to 2.5 mm 5. s c a 1 a e n u s 



ff Wing A\ith five or six siK)ts, or bars ; abdomen of female with 

 whitish posterior margins to the segments ; length 2 mm. 



( St Vincent Island) G. s p i 1 o p t e r u s 



cc Wings with cross bars 



d Brownish si>ecies ; abdomen of female black with white posterior 

 margins to the segments ; length 2 mm. (St Vincent Island) 



G. s p i 1 p t e r u s 



